Answer:
x=3/4, x=0.75
Step-by-step explanation:
Find the solution of the system of equations.
First equation,
4x – 3y = -13
Second equation,
-x+ 6y = -44
-2a3 - 3a2 + 4a + 6, 2a3 + 5a2 + 7
sum the expression
Answer:
2a2 + 4a + 7
Step-by-step explanation:
As, - (2a3 - 3a2 + 4a + 6) + (2a3 + 5a2 + 7)
= 2a2 + 4a + 13
1
What is the equation of the line parallel to 8x - 16y= -14 and passing through (3, 0)?
Answer:
8x -16y = 24
Step-by-step explanation:
8x - 16y= -14
A parallel line (i.e. same slope) will be: 8x - 16y= c
We have to find the value of "c".
If it passes through (x, y) = (3, 0) ⇒ 24 - 0 = c,
so equation is 8x -16y = 24
A block of wood is in the shape of a rectangular prism with dimensions (n+5) cm, (n+8) cm, and (n+14) cm. All faces of the block are painted, and then the block is cut into 1 cm cubes using parallel cuts to each face. If exactly half of the cubes have no paint on them, find the total number of cubes.
Answer:
The total number of cubes in the rectangular prism are 1,120 cubes
Step-by-step explanation:
The given parameters are;
The dimensions of the rectangular prism block of wood = (n + 5), (n + 8), and (n + 14)
The volume of the block of wood = (n + 5)×(n + 8)×(n + 14) = n³ + 27·n² + 222·n + 560
The quantity of the 1 cm cubes that have no paint = 1/2 of the total quantity = 1/2 the volume of the original cube
The cubes that have paint on them are the surface cubes, we have;
One layer of cube is removed from each of the eight sides, therefore, we have the dimensions of the cube rectangular prism that have no paint on them given as (n + 5 - 2), (n + 8 - 2), and (n + 14 - 2), which gives the dimensions as (n + 3), (n + 6), and (n + 12);
Therefore, we have
2 × (n + 3)×(n + 6)×(n + 12) = (n + 5)×(n + 8)×(n + 14)
2 × (n + 3)×(n + 6)×(n + 12) - (n + 5)×(n + 8)×(n + 14) = 0
Which gives;
n³ + 15·n² + 30·n - 128 = 0
n = 2
n = -17/2 - √(33)/2 = -5.6277
n = √(33)/2 - 17/2 = -11.3722
Therefore, given that the smallest dimension of the painted prism = (n + 5), the possible value for n = 2
The volume of the rectangular prism = (n + 5) × (n + 8) × (n + 14) = (2 + 5) × (2 + 8) × (2 + 14) = 1120 cm³
Given that the cuts are 1 cm³ each, the total number of cubes in 1,120 cm³ = 1,120 cubes.
Use the word decay in a sentence
Use the word growth in a sentence
Answer:
If you don't water your plants and give them sun light they will slowly start to decay.
The growth of how my sister grew this year is incredible she used to be super short.
Step-by-step explanation:
The formula for throwing a baseball in the air is represented by the attached function, where h represents the height of the ball in inches, and t represents time. How high is the baseball after 3 and a half seconds?
h(t)=-3t^2+12t+40
Answer:
45.25 in
Step-by-step explanation:
To solve this question you would plug 7/2 or 3.5 in for t and solve for h(t).
h(t)=-3(7/2)^2+12(7/2)+40
=-3(49/4)+(84/2)+40
=(-147/4)+42+40
=-36.75+42+40
=45.25 in
HELP ME FIND THE SLOPE
Answer:
[tex]m=\frac{-5}{2}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Choose any 2 points from the chart.
Point (-6, 11)
Point (-2, 1)
Step 2: Find slope m
Substitute: [tex]m=\frac{1-11}{-2+6}[/tex]Subtract/Add: [tex]m=\frac{-10}{4}[/tex]Simplify: [tex]m=\frac{-5}{2}[/tex]
Abby is using the Distributive Property to find 27 x 52
Drag the correct number into each box to show her work.
Numbers may be used once, more than once, or not at all.
27 x 52 = (20 +
) x (50 +
= (20+7)x
+ (20+7)x
= (20 x 50) + (7 x 50) + (20 X 2) + (7 2)
11
Answer:
27 x 52 = ( 20 + 7 ) x ( 50 + 2 ) = 1404
Step-by-step explanation:
27 x 52
( 20 + 7 ) x ( 50 + 2 )
(20 x 50) + (20 x 2) + (7 x 50) + (7 x 2)
= 1000 + 40 + 350 + 14
= 1404
A cleaning company charged $125 to clean a 2500 square foot house. The same company charged $146 to clean a 3200 square foot house. Write an equation in slope-interceptiom to represent the total cost, y, to clean a house with x square feet. Then, find the total cost to clean a house that is 4500 square feet.
Answer:
The cost is y = $185
Step-by-step explanation:
Let us have points spelt out here
(2500,125) and (3200,146)
The general form of a straight line equation is;
y = mx + b
where m is slope
So to calculate the slope in this case, we have
m = (146-125)/(3200-2500)
m = 21/700 = 0.03
So we have the equation as
y = 0.03x + b
To get b, we use any of the two points
Let us use (2500,125)
So we have
125 = 0.03(2500) + b
125 = 75 + b
b = 125-75
b = 50
So the complete equation of the line is;
y = 0.03x + 50
So here, we want to find the cost of a house with 4500 square feet
simply substitute 4,500 for x
y = 0.03(4500) + 50
y = 135 + 50
y = $185
half
a number added
to the number gives 144
what is the number
Answer:
[tex]the \: number \: is \: 96[/tex]
Explanation:
[tex]let \: the \: number \: be \: = \: x [/tex]
[tex] \frac{x}{2} + x = 144[/tex]
[tex]2( \frac{x}{2} ) + 2(x) = 2(144)[/tex]
[tex]x + 2x = 288[/tex]
[tex]3x = 288[/tex]
[tex] \frac{3x}{3} = \frac{288}{3} [/tex]
[tex]x = 96[/tex]
Plz someone solve!!!!!!!!!!!!!!!!!!!
Answer:
C
Step-by-step explanation:
4y+3 <= y+6
First, we subtract 3 from each side to get 4y <= y + 3.
Next, we subtract y from each side to get 3y <= 3.
Next, we divide each side by 3 to get y <= 1.
The graph is C.
10) Choose the correct answer.
A method of solving systems of linear equations by adding the two equations together is called __________.
*Gaussian addition
*Gaussian elimination
*Gaussian division
*Gaussian substitution
Find the irrational number between 0.3101 and 0.3333
Answer:
π/10
Step-by-step explanation:
Irrational Numbers
The irrational numbers are identified because, unlike rational numbers, they cannot be expressed as fractions, i.e., as the result of a division between two integers.
If a number is expressed with a limited number of decimals, it's always possible to write it as a rational.
For example, number 1.2319 can be written as 12319/10000.
Even if the number has an unlimited decimal expression, it could be expressed as rational if the decimal part is periodic. Number 2.33333... is rational because it's equivalent to the fraction 7/3.
We need to find an irrational number between 0.3101 and 0.3333.
Any number within the range with unlimited non-periodic decimals will do:
0.3189567363.... is a good example.
We'll choose the number
π/10 since π is a known irrational number and π/10=0.3141592... lies in the given interval.
I WILL GIVE BRAINLIEST!!!
If –18 < –8, which of the following must be true?
–8 is to the right of 0 on a number line.
–18 is to the left of –8 on a number line.
–18 is to the right of –8 on a number line.
–18 is to the right of 0 on a number line.
Simplify r^6 • r^5 type your answer in the box
Answer:
r^11
Step-by-step explanation:
Can someone help with these 2 questions please? will give brainliest and 19 points (one is in picture attached)
You order candles from a website that charges $15 per candle. You
only have $65.00 to spend on candles. Your cost, in dollars, is a
function of the number of candles you order.
Which of the following statements describe the domain and range
of this function? Select TWO that apply.
O A) The domain is the set of all real numbers from 0 to 4
O B) The domain is the set of all integers from 0 to 4.
O C) The range is the set of all integers from 0 to 60.
OD) The range is the set of all multiples of 15 from 0 to 60.
OE) The range is the set of all real numbers from 0 to 60.
Can someone help with these 2 questions please? will give brainliest and 19 points
Answer:
A
Step-by-step explanation:
I think
Answer: D and B
Step-by-step explanation:
The range (answered by D) is only the multiples of 15 between 0 and 60 as it is impossible to pay an amount different than the correct inclinations of 1/15 per candy. For example, it is impossible to pay 12.345421 dollars for a candy.
A similar solution applies for the domain. Only integers(whole numbers) are valid as you cannot buy 1.2862 of a candy.
Hope this helps.
HELP!!
Uber is running a special! You pay an initial charge of $3.25 plus 1.50 per mile. Write an equation that can be used to find y, the total cost of the trip, if x represents the number of miles of the trip?
Answer:
y=1.50x+3.25
Step-by-step explanation:
no its nto rm what is 6667x2228 divided by 34394u9 and subtracted by 343 and then divided again by 2 and then subtract 333 and then multiply 439483
Answer:
vvvvvvvvvvvvvvvvvvvvvv is equal to 65654
Step-by-step explanation:
if f(x)=x-5/4 and f-1(x)=25 find the value of x
Answer:
ANSWER
g=f
−1
f(g(x))=x
Differentiate w.r.t.x
f
′
(g(x))⋅g
′
(x)=1
∴
1+(g(x))
4
1
⋅g
′
(x)=1
g
′
(x)=1+[g(x)]
4
Solve for x -10 + x = -12
Answer:
=-1
Step-by-step explanation:
−
1
0
+
=
−
1
2
{\color{#c92786}{x}}-10+{\color{#c92786}{x}}=-12
x−10+x=−12
2
−
1
0
=
−
1
2
What is the coefficient in the expression 5+ 9y5+9y5, plus, 9, y?
Answer:
Step-by-step explanation:
The coefficient is the number part.
Answer:
9
Step-by-step explanation:
Correct me if i'm wrong
please help me PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!!
Answer:
2.1/3
3.7/11
Step-by-step explanation:
Answer:
(2) 1/3
(3) 7/11
Does this table show a proportional relationship? If so, what is the constant of proportionality.
Answer:
yes as x increases by 10, y increased by 2
if a/b=1 and a+b=10, then what does ab equal?
Answer:
5 and 5
Step-by-step explanation:
5 divided by 5 is 1
5 plus 5 is 10
what is 45% of 40 in part, whole, and percent?
I need help with this question 3 and 4
Answer:
Both Yes
Step-by-step explanation:
both have a 90 degree angle
Complete the table below.
HeLPP ILL GIVE BRAINLIEST!
Answer:
see explanation
Step-by-step explanation:
Substitute the value of x into y = x² and y = [tex]2^{x}[/tex]
x = 1
y = 1² = 1 and y = [tex]2^{1}[/tex] = 2
x = 2
y = 2² = 4 and y = 2² = 4
Thus
x y = x² y = [tex]2^{x}[/tex]
-----------------------------
0 0 1
1 1 2
2 4 4
A pancake mix requires 5 cups of flour for every 10 pancakes. How much flour is used per pancake?
So you have 5 cups of flour for 10 pancakes so what you want to do is just divide 10 by 5 and you get your answer of 2 :)
Write the equation in point-slope form of the line that passes through the given point and with the given slope m.
(3,-4); m = 6
O y + 4 = 6(x - 3)
O y + 3 = 6(x-4)
O y + 4 = 6(x +3)
O y - 4 = 6(x-3)
Answer:
y + 4 = 6(x - 3)
Step-by-step explanation:
Point-slope form: y - y1 = m(x - x1)
Given: m = 6, (3, -4)
(x1, y1) = (3, -4)
Input the given values into the equation for point-slope form:
y - (-4) = 6(x - 3)
y + 4 = 6(x - 3)
The equation written in point-slope form is: y + 4 = 6(x - 3)
I hope this helps :)
An exponential function is a type of geometric sequence.
True or False
Answer: True
Step-by-step explanation: