Answer:
14
Step-by-step explanation:
[tex]\frac{90n+90n}{n+1}=168 \\ \\ 180n=168n+168 \\ \\ 12n=168 \\ \\ n=14[/tex]
Answer:
Step-by-step explanation:
Let the sum of the original list of n numbers be S. The average of the list is given by:
average = S/n
Since the average is 90, we can write:
90 = S/n
Multiplying both sides by n, we get:
90n = S
After the number 90n is added to the list, the average of the list becomes 168. The sum of the list is now S + 90n. The number of elements in the list is now n+1. The average of the list is given by:
average = (S + 90n) / (n+1)
Since the average is 168, we can write:
168 = (S + 90n) / (n+1)
Multiplying both sides by n+1, we get:
168(n+1) = S + 90n
Substituting for S using the equation S = 90n, we get:
168(n+1) = 90n + 90n
Simplifying, we get:
168n + 168 = 180n
Subtracting 168n from both sides, we get:
168 = 12n
Dividing both sides by 12, we get:
14 = n
Therefore, n = 14.
The correlation between two scores X and Y is equal to 0.8. If both the X scores and the Y scores are multiplied by 2, the correlation of the transformed scores would be:a) 1.6b) 0.4c) 0.8d) 0.16e) None of these
The correct answer is (C) 0.8. The correlation between two scores X and Y is equal to 0.8. If both the X scores and the Y scores are multiplied by 2, the correlation of the transformed scores would be 0.8.
The correlation between two variables measures the strength and direction of the linear relationship between them. It is calculated as the covariance of the two variables divided by the product of their standard deviations. When both the X scores and the Y scores are multiplied by 2, the covariance and standard deviations of the transformed scores are also multiplied by 2. Therefore, the correlation between the transformed scores is equal to the correlation between the original scores.
In this case, the correlation between the original scores is 0.8, and the correlation between the transformed scores is also 0.8.
Learn more about Standard Deviation here:
https://brainly.com/question/24298037
#SPJ4
can you find the exact circumference of a circle when you multipy the diameter by 22/7? explain
When you multiply the diameter by 22/7, you find the approximate not exact circumference of a circle.
What is the Circumference of a circle?
The circumference of the circle or the perimeter of the circle is the measurement of the boundary of the circle. Whereas the area of the circle defines the region occupied by it.
Pi ( written as the Geek letter π) is a universal constant found by dividing the circumference of a circle by its diameter. So if you measure the diameter of a circle you can calculate its circumference by multiplying by π.
Circumference = π * diameter.
It's value to the nearest hundredth is 3.14 but its actual value is a decimal number that goes on without bounds. That is in Maths it is irrational and can't be written accurately as a fraction.
For example:
What is the circumference of a circle that has a radius of 7cm?
Approximately 22 cm.
Exactly 7πcm
The ratio between the circumference of a circle and its diameter is π. We commonly write c=2π r, using the radius instead and doubling it.
One is 22/7, which is common in use and the other is 355113 ≈ 3.1415929,
which is less well-known but very accurate for the number of digits you have to remember.
In the given example, we are told that the diameter is 7 cm.
So using the common approximation π ≈ 22/7,
we find that the circumference is approximately:
(22/7)* 7 cm
= 22cm
Hence, when you multiply the diameter by 22/7, you find the approximate not exact circumference of a circle.
To learn more about Intersecting Circumference of a circle visit,
https://brainly.com/question/18571680
#SPJ1
what should i write there can someone help pls
Answer:
9t + 9e is your answer bro
The circumference of a circle is double the perimeter of square having area 484cm^2.what is the area of circle?
Answer:
circumference (c) = 2.per(Square
Step-by-step explanation:
ar sq = l²
484 = l²
l = 22
again
p=4l=4×22=88cm
c = 2×p=2×88= 176cm
we know
c= 2πr
or, 176 = 2×22/7 × r
r = 28 cm
again
ar (circle) = πr²
= 22 / 7 × 28²=2464cm²
Help me solve it the answer
The required top of the ladder from the ground is 7.14 ft.
What is a right angle triangle?A triangle is said to be right-angled if one of its internal angles is 90 degrees, or if any angle is a right angle.
To find the length in right angle triangle, use Pythagoreans theorem,
(hypotenuse)² = (base)² + (height)²
Given that,
The length of the ladder = 10 ft.
The distance of the house from the bottom of the ladder = 7 ft.
Let the length of the top of the ladder from ground is x ft.
To find the height of the ladder from the ground,
Use Pythagoreans theorem,
(hypotenuse)² = (base)² + (height)²
(10)² = (7)² + (x)²
100 = 49 + x²
x² = 100 - 49
x² = 51
x = 7.1414
or x = 7.14 ft
The top of the ladder from the ground is 7.14 ft.
To know more about Triangle on :
https://brainly.com/question/2773823
#SPJ1
Suppose the distributor charges the artist a $50.00 cost for distribution, and the streaming services pay $5.00 per unit. (Note: One unit = one thousand streams)
Model the profit for the total number of streams by answering the questions below:
1. Use the cost for distribution to build the y-intercept. What is the y-intercept?
2. Use the payment per unit to build the slope. What is the slope?
3. What is the equation of this line?
4. After how many streams will the distributor charges be paid?
5. How many streams would it take to profit $950,000?
y-intercept of the function is (0, 50), the slope of the function is 5, the equation of the line is P(x) = 50 + 5x and it would take 189990 streams to profit $950,000.
What does math's intercept mean?The x-intercept and y-intercept are the points where a centre line the x- and y-axes, respectively.
Briefing:Given the following parameters
Fixed price = $50
The rate of change is $5 if streaming providers pay $ 5.00 per unit.
The necessary profit is provided as follows for the entire number of streams:
P(x) = 50 + 5x
The y-intercept is the location where x equals zero.
P(x) = 50 + 5x
P(0) = 50 + 5(0)
P(0) = 50
Thus, the function's y-intercept is (0, 50)
For the slope
mx = 5x
m = 5
Consequently, the function's slope is 5.
Equation of this line is P(x) = 50 + 5x
P(x) = 50 + 5x = 950000
5x = 950000 - 50
5x = 949950
x = 189990
Hence, it would take 189990 streams to profit $950,000.
To know more about intercept visit:
https://brainly.com/question/14180189
#SPJ1
f(x)=2.836sin (0.0172(x-80)) +12.164 a. Use technology to obtain a printout of the function over its practical domain. Scale and label the axes appropriately. b. Label the maximum, minimum, and inflection points on the graph. You should label the points both in the form (x, f(x)) and (date, f(x)).
(a) The function over its practical domain x = 80±nπ n∈(0, 1, 2, 3,..............)
(b) Point of maxima = (171.325, 15), (536.637, 15), (901.928, 15),................
Point of minima = (353.976, 9.326), (719.278, 9.328),...................
Inflection point = (80, 0), (262.651, 0), (445.301, 0),..................
In the given question, f(x)=2.836 sin(0.0172(x-80)) + 12.164
a. Using technology we have to obtain a printout of the function over its practical domain. Scale and label the axes appropriately.
f(x)=2.836 sin(0.0172(x-80)) + 12.164
f'(x) = 0 at 2.836×0.0172 cos(0.0172(x-80)) = 0
So x = 171.325, 353.976, 536.627, 719.278, .................
f''(x) = -2.836×(0.0172)^2 sin(0.0172(x-80)) = 0
So x = 80±nπ n∈(0, 1, 2, 3,..............)
b. We have to label the maximum, minimum, and inflection points on the graph. We should label the points both in the form (x, f(x)) and (date, f(x)).
Point of maxima = (171.325, 15), (536.637, 15), (901.928, 15),................
Point of minima = (353.976, 9.326), (719.278, 9.328),...................
Inflection point = (80, 0), (262.651, 0), (445.301, 0),..................
Therefore, the graph of the aforesaid function is shown below. The greatest value of the function is 15 and the smallest value is 9.328. Additionally, the graph's values are labelled.
To learn more about maxima and minima of function link is here
brainly.com/question/29094468
#SPJ4
Please help!!!!!!!!!!!!!!!!
The area of each square below is 1 square unit. What is the area of the striped region? if you get it first brainly
The area of the striped region (blue ones with angled strips on them) is equal to 3/4 square units.
How to get the area of the striped region?First, we know that each square below is 1 square unit.
These squares are divided into rectangles of (1/2) by (1/6), then each one of these strips has an area equal to the product between the two dimensions, it gives:
(1/2)*(1/6) = 1/12 square units.
Now we need to count how many of the striped rectangles are, we can see that there are 9 of these, then the area of the striped region is:
A = 9*1/12 square units.
A = 9/12 square units
A = 3/4 square units.
Learn more about area:
https://brainly.com/question/24487155
#SPJ1
The perimeter of a rectangle is 38". If the
length is 3" more than the width, find the
width:
9-A 17 1/2"
9-B 8"
9-C
11"
9-D 14 1/2"
Answer:
Length = 11" and width = 8".
Step-by-step explanation:
let L be the length of the rectangle
and w be its width.
Formula (perimeter P of a rectangle) :
P = 2 × (L + w)
================================
Then
L = w + 3
and
P = 2 × (L + w)
= 2 × (w + 3 + w)
= 2 × (2w + 3)
= 4w + 6
Solving the equation P = 4w + 6 for w :
P = 4w + 6
⇔
38 = 4w + 6
⇔
32 = 4w
⇔
w = 32 ÷ 4
= 8
Determining the length L :
L = w + 3
⇔
L = 8 ÷ 3
= 11
Conclusion:
L = 11 and w = 8
Answer:
Width = 8"
Step-by-step explanation:
2(t+w) = 38 Eq. 1
t = w+3 Eq. 2
t = length
w = width
From Eq. 2:
t+w = 38/2
t+w = 19
t = 19 - w Eq. 3
Replacing Eq. 3 in Eq. 2:
19 - w = w + 3
19 - 3 = w + w
16 = 2w
16/2 = w
w = 8
Frm Eq. 2:
t = w + 3
t = 8 + 3
t = 11
Check:
From Eq. 1
2(t+w) = 38
2(11+8) = 38
2(19) = 38
Find the y-intercept of the following equation. Simplify your answer.
y = 10x + 5
y-intercept=
X-intercept =
Answer:
Step-by-step explanation:
To find the y intercept we need to let x=0
y=10*0+5=5 therefore y intercept =5
To find the x intercept we need to let y=0
we get 0=10x+5
We need to solve for x, this means getting x on its own
Take 5 from both sides
0-5=10x+5-5
-5=10x
Divide both sides by 10
gives
-5/10=10x/10
-1/2=x
Therefor x intercept =-1/2
CAN SOMEONE PLEAE HELP!!!!
Here’s a picture
Answer: f(x) = 1
Step-by-step explanation:
They tell us what we need to do, we must substitute x for 0 in the original function to find the initial value.
[tex]f(x) = (\frac{1}{4} )^x[/tex]
[tex]f(x) = (\frac{1}{4} )^0[/tex]
[tex]f(x) = 1[/tex]
* Anything raised to the power of 0 is equal to 1.
Suppose that f(x) = x² and g(x)=2/5x². Which statement best compares the
graph of g(x) with the graph of f(x)?
A. The graph of g(x) is the graph of f(x) compressed vertically.
B. The graph of g(x) is the graph of f(x) stretched vertically.
C. The graph of g(x) is the graph of f(x) compressed vertically and
reflected over the x-axis.
OD. The graph of g(x) is the graph of f(x) stretched vertically and
reflected over the x-axis.
When constructing a perpendicular bisector of a segment, why should you make arcs with the same radius from each endpoint? Select the true statement.
a. this makes the arcs perpendicular to each other
b. this makes the arcs equidistant from each other
c. this makes the intersections of the arcs equidistant from the endpoints
d. this makes the arcs parallel to the segment
When constructing a perpendicular bisector of a segment, you should make arcs with the same radius from each endpoint as D. this makes the arcs parallel to the segment
What is a perpendicular bisector?A line segment that bisects another line segment at a 90° angle is known as a perpendicular bisector. In other words, a perpendicular bisector divides a line segment into two equal parts by intersecting it at a 90-degree angle.
A line segment known as a perpendicular bisector divides a straight line segment into two congruent or equal segments. At the exact midpoint of the line segment, they divide it. The arcs with the same radius from each endpoint is important as this makes the arcs parallel.
Learn more about segment on:
https://brainly.com/question/2437195
#SPJ1
Given that the lines are parallel, which statement is true about angles x and y ?
Answer:
a. Angles x and y are supplementary because they are same side interior angles.
Angles x and y are supplementary because they are same side interior angles.
What is transversal?A line that goes through two lines in the same plane at two different points is called a transversal. When determining whether two or more other lines in the Euclidean plane are parallel, transversals play a role. Different kinds of pairs of angles are created when two lines intersect a transversal: alternate angles, corresponding angles, consecutive exterior angles, and consecutive interior angles. If the two lines are parallel, Euclid's parallel postulate states that consecutive interior angles are supplementary, that corresponding angles are equal, and that alternate angles are equal.
Given lines are parallel and cut by a transversal,
and to find the statement for x and y
in figure x and y are interior side of both lines
statement for x and y is
Interior angles on the same side of a transversal are supplementary if it cuts through two parallel lines. Exterior angles on the same side of a transversal are supplementary if it cuts through two parallel lines.
Hence x and y are supplementary angles.
Learn more about transversal;
https://brainly.com/question/17987539
#SPJ2
−(−B)=minus, left parenthesis, minus, B, right parenthesis, equals
We know that,
When sign negative multiplied by negative then we find positive sign,
Therefore,
When sign positive multiplied by positive sign then we find positive sign,
When sign positive multiplied by negative sign then we find negative sign,
When sign negative multiplied by positive sign then we find negative sign,,
For example-
(-8)×(2)=-16
(-2)×(-2)=4
(-3)×(+3)=-9
(+3)×(+4)=+12
(+8)×(-2)=-16
According to question,
Given data in the question,
-(-B) =minus, left parenthesis, minus, B right parenthesis, equals
With the help of above Lines
we can say that,
-(-B)=-1×-(B)
=B
-(-B)=minus,left parenthesis, minus, B right parenthesis, equals
To know more about negative sign, visit
brainly.com/question/17893810
#SPJ1
For the give question of −(−B)=minus, left parenthesis, minus, B, right parenthesis, equals answer is -(-B)=-1×-(B)
What is parenthesis?The well-known () symbol is used in pairs to group things together or specify the order of operations in an equation. Parentheses or "round brackets" are also known as parentheses. When writing or solving equations in math, you'll frequently need to use brackets. They assist in defining the order of operations as well as grouping numbers.
We know that,
When sign negative multiplied by negative then we find positive sign,
Therefore,
When sign positive multiplied by positive sign then we find positive sign,
When sign positive multiplied by negative sign then we find negative sign,
When sign negative multiplied by positive sign then we find negative sign,,
For example-
(-8)×(2)=-16
(-2)×(-2)=4
(-3)×(+3)=-9
(+3)×(+4)=+12
(+8)×(-2)=-16
According to question,
Given data in the question,
-(-B) =minus, left parenthesis, minus, B right parenthesis, equals
With the help of above Lines
we can say that,
-(-B)=-1×-(B)
=B
-(-B)=minus, left parenthesis, minus, B right parenthesis, equals
To know more about parenthesis, visit
https://brainly.com/question/11599020
#SPJ1
A delivery truck is transporting boxes of two sizes: large and small. The combined weight of a large box and a small box is 70 pounds. The truck is transporting 65 large boxes and 50 small boxes. If the truck is carrying a total of 4250 pounds in boxes, how much does each type of box weigh?
Large box: ___ Pounds
Small box: ___Pounds
The weight of large box will be 45 pounds.
The weight of small box will be 30 pounds.
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The combined weight of a large box and a small box is 75 pounds.
And, The truck is transporting 55 large boxes and 70 small boxes.
Total weight of boxes = 4575 pounds
Now,
Let weight of large box = x
And, Weight of small box = y
Here, The combined weight of a large box and a small box is 75 pounds.
So, We can formulate;
⇒ x + y = 75 ...(i)
And, Total weight of boxes = 4575 pounds
So, We can formulate;
⇒ 55x + 70y = 4575 ...(ii)
Solve both equation as;
From (i);
x = 75 - y
Substitute in equation (ii), we get;
⇒ 55(75 - y) + 70y = 4575
⇒ 4,125 - 55y + 70y = 4575
⇒ 15y = 4575 - 4,125
⇒ 15y = 450
⇒ y = 30
And, x = 75 - 30 = 45
Thus, The weight of large box will be 45 pounds.
The weight of small box will be 30 pounds.
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ1
Solve the following inequality using the algebraic approach:
x + 2 > 3x-8
Answer: x<5. Work shown below! :)
The population for the following district is subdivided by region:
Region 15 has 315 students
Region 16 has 148 students
Region 17 has 221 students
If an organization selects 3 students to represent the district, calculate the standard divisor needed to be eligible for representation of the region.
If an organization selects 3 students to represent the district, the standard divisor needed to be eligible for representation of the region is 228.
What is the standard divisor?The standard divisor is computed as the quotient of the total population divided by the number of representative seats required to be distributed.
The standard divisor explains the number of persons represented by a seat.
Regions Number of Students
Region 15 315
Region 16 148
Region 17 221
Total number = 684
Number of students to represent the district = 3
Standard divisor = 228 (684 ÷ 3)
Learn more about the standard divisor at https://brainly.com/question/17112402
#SPJ1
How many real solution are there in equation[tex]\frac{(x-2)(x-3)}{(x-3)(x-4)} =-1[/tex]
Answer:
0
Step-by-step explanation:
[tex]\frac{x-2}{x-4}=-1, x \neq 3 \\ \\ x-2=-x+4 \\ \\ 2x=6 \\ \\ x=3[/tex]
This contradicts the domain restriction, so there are no real solutions.
Answer: 0
Step-by-step explanation:
In 2020, the financial statements of Ultimate Medical Center reported $960,000 in total revenues and $305,000 in net income with consistent increase in patient volume each month. In fact, during your leadership meeting, you were able to report that there were $400,000 in collections and $820,000 in monthly charges for the monthly of August. Calculate the gross collection ratio and the operating ratio for Ultimate Medical Center:
if you depsoit $1000 at 100% simple interest, what will your ending balance be after one year
Answer:
$2,000
Step-by-step explanation:
A=P(rincipal)R(ate)T(ime)
1000*1*1=1000
1000(principal)+1000(interest)=2,000(total)
Triangle BCD with vertices B(2, -1), C(4, 1), and D(5,-2):
scale factor = 3, centered at the origin
Answer:
To find the coordinates of the vertices of triangle BCD after it is scaled by a factor of 3, centered at the origin, you would first need to find the coordinates of the vertices of the triangle when it is centered at the origin. This can be done by subtracting the coordinates of the original centroid, which is the point (3.33, -0.66) for triangle BCD, from the coordinates of each vertex. So the coordinates of vertex B would be (2 - 3.33, -1 + 0.66) = (-1.33, -0.34), the coordinates of vertex C would be (4 - 3.33, 1 - 0.66) = (0.67, 0.34), and the coordinates of vertex D would be (5 - 3.33, -2 + 0.66) = (1.67, -1.34).
To scale the triangle by a factor of 3, you would multiply the coordinates of each vertex by 3. So the coordinates of the scaled triangle would be (-3.99, -1.02) for vertex B, (2.01, 1.02) for vertex C, and (5.01, -4.02) for vertex D.
Therefore, the coordinates of the vertices of triangle BCD after it is scaled by a factor of 3, centered at the origin, would be (-3.99, -1.02), (2.01, 1.02), and (5.01, -4.02).
Pls help i will mark brainliest Determine the value of y for the inequality 4 times the quantity y plus one fifth end quantity is less than or equal to four fifths.
y ≥ 0
y ≤ 0
y is greater than or equal to negative 1 over 40
y is less than or equal to negative 1 over 40
The value of y is less than or equal to 0 (y ≤ 0).
What is inequality?
In mathematics, inequalities describe the relationship between two values that are not equal. Equal means to be equal, not. The "not equal symbol (≠)" is typically used to indicate that two values are not equal. But different inequalities are used to compare the values to determine whether they are less than or greater than.
Given:
4y + 1/5 ≤ 4/5
We have to find the value of y.
Subtract 1/5 from both sides,
4y + 1/5 - 1/5 ≤ 4/5 - 1/5
4y ≤ 3/5
Multiply both sides by 1/4
4y x 1/4 ≤ 3/5 x 1/4
y ≤ 3/20
y ≤ 0.15
Hence, the value of y is less than or equal to 0 (y ≤ 0).
To know more about inequality, click on the link
https://brainly.com/question/24372553
#SPJ1
-3x-4y=-1 3x-y=-4 elimination
Answer:
(- 1, 1 )
Step-by-step explanation:
- 3x - 4y = - 1 → (1)
3x - y = - 4 → (2)
add (1) and (2) term by term to eliminate x
0 - 5y = - 5
- 5y = - 5 ( divide both sides by - 5 )
y = 1
substitute y = 1 into either of the 2 equations and solve for x
substituting into (2)
3x - 1 = - 4 ( add 1 to both sides )
3x = - 3 ( divide both sides by 3 )
x = - 1
solution is (- 1, 1 )
-15x + 20y = 15-5
0-18x + 24y - 18
Answer:
To solve this system of linear equations, we need to first rewrite the equations in standard form, which is the form y = mx + b. To do this, we can isolate the y-term on one side of the equation and the x-term and constant on the other side. For example, the first equation can be rewritten as follows:
-15x + 20y = 15-5
20y = 15 - 5 - 15x
y = -3/4 x + 2
Similarly, the second equation can be rewritten as follows:
0 - 18x + 24y - 18
24y = -18 - 18x
y = -3/2 x - 1
Now that the equations are in standard form, we can find the point of intersection by setting the two equations equal to each other and solving for x:
-3/4 x + 2 = -3/2 x - 1
-3/4 x + 2 + 3/2 x = -1 + 3/2 x
x = -1/6
Substituting this value of x into either equation, we can solve for y to find the point of intersection:
y = -3/4 x + 2
y = -3/4 (-1/6) + 2
y = 1/3
Therefore, the point of intersection for these two equations is (-1/6, 1/3). This means that the system of equations has exactly one solution at this point.
find the mean, variance, and standard deviation for the number of heads when 17 coins are tossed. round your answers to three decimal places.
Factorials and the binomial theorem are utilized in the binomial distribution, a discrete probability distribution. Checking the sample space is the first step in deciding whether or not to use a binomial distribution with a given data set.
The binomial distribution would apply if there were multiple trials of the same experiment and only two outcomes in the sample space.
S=T,H,THT,H,THH,HTH,HHT,HHH in this case.
∴ n(S)=8.
Thus, the probability of each and every outcome is 18.
When tossing three coins, let X be the number of heads.
There can be 0, 1, 2, or 3 heads.
Therefore, X's possible values are 0, 1, 2, and 3.
P(X=0) = P (no head) = P(T) = 18.
P(X=1) = P (getting a single head) = P(HorTHTorH) = 38.
P (X=P (getting 2 P (THH, HTH, HHT)=38.
To learn more about binomial distribution here
https://brainly.com/question/14565246
#SPJ4
A family wants to make an addition to a deck that extends off the back of their home. The current deck is 400 ft2. The addition will be 18.75 ft in length and 15 ft wide. What will be the total area of the deck once the addition is complete?
A: 681.25 ft2
B: 433.75 ft2
C: 281.25 ft2
D: 118.75 ft2
Answer:
[tex]681.25ft^2[/tex]
Step-by-step explanation:
The total area of the deck can be found with
[tex]A_t=A_0+A_a[/tex]
where
[tex]A_t[/tex] = total area of the new deck
[tex]A_0[/tex] = area of the original deck
[tex]A_a[/tex] = area of addition
The area of the addition can be found with
[tex]A_a=lw[/tex]
where
[tex]l[/tex] = length of addition
[tex]w[/tex] = width of addition
So,
[tex]A_t=400ft^2+(18.75ft*15ft)\\A_t=400ft^2+281.25ft^2\\A_t=681.25ft^2[/tex]
Express 40 g as a percentage of 2 kg.
=2%
Step-by-step explanation:2 kg = 2000 g
x% of 2000 = 40
x/100 × 2000 = 40
x = 2%
Use the model below to estimate the average annual growth rate of a certain country's population for 1950, 1988, and 2010, where x is the number of years after 1900.
y = -0.0000084x^3 + 0.00194x^2 -0.196x + 7.819
The estimated average annual growth rate of the country's population for 1950 is enter your response here ___________
The average annual growth rate of a certain country's population for 1950, 1988, and 2010 are 1.819, -0.1300048 and -1.4474respectively.
What is an equation?Equation: An algebraic expression composed of two expressions with the same value and the symbol "=" in between.
The given equation is
y = -0.0000084x³ + 0.00194x² -0.196x + 7.819
Where Y is the annual growth rate of a certain country's population and x is the number of years after 1900.
Difference between 1950 and 1900 is 50.
Put x=50 in the given equation.
y = -0.0000084(50)³ + 0.00194(50)² -0.196(50) + 7.819
y = 1.819
Therefore, the estimated average annual growth rate of the country's population for 1950 is 1.819.
The difference between 1988 and 1900 is 88.
Put x=88 in the given equation.
y = -0.0000084(88)³ + 0.00194(88)² -0.196(88) + 7.819
y= -0.1300048
Therefore, the estimated average annual growth rate of the country's population for 1988 is 0.9985.
Difference between 2010 and 1900 is 110.
Put x=110 in the given equation.
y = -0.0000084(110)³ + 0.00194(110)² -0.196(110) + 7.819
y= -1.4474
Therefore, the estimated average annual growth rate of the country's population for 2010 is 0.2236.
Therefore, population growth rates for a particular nation in 1950, 1988, and 2010 are, respectively, 1.819, -0.1300048 and -1.4474.
To learn more about the equation;
https://brainly.com/question/12788590
#SPJ1
Graph g(x) = -3x + 9 and identify its x-intercept.
(0, 3)
(0, 9)
(3, 0)
(9,0)
On a graph of g(x) = -3x + 9 the x - intercept is identified to be
What is x - intercept?The points where a line crosses an axis are known as the x-intercept and the y-intercept, respectively.
It is x - intercept where the line crosses the x axis and y intercept where the line crosses the y axis
How to identify the intercept from the graphOn the graph, the point where the line crosses the x axis is noted and written in ordered pair in the for (a, b)
Where a represents values in the x direction and y are values in the y direction
From the graph, a = 3 and b = 0
Learn more about x intercept at:
https://brainly.com/question/17932786
#SPJ1
Answer:
The answer is C. (3, 0)