Answer:
0.09, 0.9, 0.91, 0.99
Step-by-step explanation:
Well I'm in 7th grade so I already know this stuff
can someone solve these for me? its factoring trinomials
you can dm the answers on ig as well if you'd like
Answer:
1.) [tex]\left(x-3\right)\left(x+6\right)[/tex]
2.) [tex]\left(a-3\right)^2[/tex]
3.) [tex]=\left(t+8\right)\left(t-9\right)[/tex]
4.) [tex]=\left(b+7\right)^2[/tex]
Step-by-step explanation:
2.) [tex]=a^2-2a\cdot \:3+3^2[/tex], [tex]\mathrm{Apply\:Perfect\:Square\:Formula}:\quad \left(a-b\right)^2=a^2-2ab+b^2[/tex].
[tex]a=a,\:b=3[/tex]
[tex]=\left(a-3\right)^2[/tex]
3.) [tex]=\left(t^2+8t\right)+\left(-9t-72\right)[/tex][tex]=t\left(t+8\right)-9\left(t+8\right)[/tex], [tex]\mathrm{Factor\:out\:common\:term\:}t+8[/tex].
[tex]=\left(t+8\right)\left(t-9\right)[/tex]
what are irrational numbers
Answer:
hi
Step-by-step explanation:
Irrational numbers are numbers that cannot be expressed as the ratio of two whole numbers.
what is the equation that has an x intercept of 4 and yintercept of 2. Show your work please
Answer:
y = -1/2x + 2
Step-by-step explanation:
If you are talking about a linear equation then b=2
The slope is y2 - y1 / x2 - x1 so 2-0/0-4 = 2/-4 = -1/2
So put it all together in y = mx + b so y = -1/2x + 2
Please help me with this
Answer: 20 inches
Step-by-step explanation: You will use the equation 48 x 28 x N = 26,880. To find the solution divide 48 and 28 from 26,880 to get N. To check your work just multiply what you got from N by 48 and 28.
which of the following piecewise graphs is not a function
Answer:
The first graph is not a function because it has two values at x = 3. Definition of a function is that it is a relation that assigns exactly one value for each value on its domain
2x+1=7 .explanation please
Answer:
x=3
Explanation
2x+1=7
Step 1: Subtract 1 from both sides.
2x+1−1=7−1
2x=6
Step 2: Divide both sides by 2.
2x/2 = 6/2
x=3
plz mark me as brainliest
Will give BRAINLIEST if you help me out
What number is 15 less than 63?
Answer:
48
Step-by-step explanation:
Answer:
48
Step-by-step explanation:
How many times greater is the one in 1,255 than the one in 82,175
Answer:
You take 1,000 because it's in the thousandths place of 1,255. The value of that one is 1,000 so you multiply that times 100, which is the value of 1 in 82,175.
1) Which number line below
shows x 4?
a)
1 2 3 4 5 6
b)
0 1 2 3 4 5 6
C)26
O i 2 3 4
D)5
0 1 2
3 4 5
6
A
B
оооо
С
D
Please help I’m really need the help (NO LINKS ) (NO LYING ) PART 2 again again again again
Answer:
television
Our world is more and more a single “information society”, and television, as the world's most powerful medium of communication, is a key part of that society. Television can be a tremendous force for good. It can educate great numbers of people about the world around them.
Step-by-step explanation:
television
Our world is more and more a single “information society”, and television, as the world's most powerful medium of communication, is a key part of that society. Television can be a tremendous force for good. It can educate great numbers of people about the world around them.
(5x+1)(5x-1) simplify
Answer:
(25x^2-1)
Step-by-step explanation:
I know the simplified form of (5x+1)(5x-1)=25x^2-1.
I know because I did the box method. So, I did 5x times 5x and got 25x^2. Then, I did 5x times 1 and got 5x. Next, I did -1 times 5x and got -5x. Next, I did -1 times 1 and got -1. Then, I took these terms I got in the box and put them together, and I got 25x^2+-5x+5x-1. I had to then simplify this equation. I added like terms.
In conclusion, the simplified form of (5x+1)(5x-1) is (25x^2-1).
Find the measure of each angle
Answer:
angle O = 36 degrees
angle N = 54 degrees
Step-by-step explanation:
90 degrees = angle O and N
2a + 18 + 5a + 9 = 90
7a + 27 = 90
7a = 63
a = 9
2(9) + 18 = 36 degrees
5(9) + 9 = 54 degrees
Select all numbers that have an absolute value of 6.3.
Answer:
6.3 & -6.3
Step-by-step explanation:
6.3 is the same as -6.3, hope this helps
Answer:
-6.3 and 6.3
Step-by-step explanation:
-6.3 is same as 6.3 is absoulte value
How to get from 40 to 5 in two steps
Answer:
Step one: say "5"
Step two: say "40"
Done.
If the points in the table lie on a parabola, write the equation whose graph is the parabola.
Answer:
what? i need a table to answer
Step-by-step explanation:
The average home in the U.S. is expected to cost $240,000. A random sample of 65 homes sold this month showed an average price of $232,000. Assume that you have access to this data. We are interested in determining if the cost of the average home has decreased this month. If the test statistic is -1.79, what is the p-value
Solution :
It is given that we have a null and an alternative hypothesis. The hypothesis are :
[tex]$H_0: \mu = 240,000$[/tex]
[tex]$H_a : \mu < 240,000$[/tex]
We have to find if the cost of average home has decreased or not in this month.
So it is given that the test statics is -1.79, so the p value associated with the test statics is less than ( α ) 0.01
Therefore, we can conclude that the cost of the average house is less than $ 240,000.
40 POINTS !! 40 POINTS !!
PLEASE HELP , DONT SKIP !
NO LINKS OR FILES.
Answer:
just upload the file
Step-by-step explanation:
Answer:
1:Add the x for the number of tbs 2: Add all the values together.
Step-by-step explanation:
Hope this helped!
Select all equations that are equivalent to x2+6x=16.
Answer:
The third one and the last one:
x²+6x+9=25
(x+3)²=25
Step-by-step explanation:
If you need an explanation tell me in comments <3
(x + 3)² = 25 and x² + 6x + 9 = 25 are equivalent to x² + 6x = 16.
What is a quadratic equation?
A quadratic equation is an algebraic equation of 2nd degree usually in the form of ax² + bx + c = 0.
Given,
x² + 6x = 16
⇒ x² + 2 × 3 × x = 16
⇒ x² + 2 × 3 × x +9 = 16 + 9
⇒ (x)² + 2 × 3 × x +9 = 25
⇒ (x + 3)² = 25
⇒ x² + 6x + 9 = 25
Hence, (x + 3)² = 25 and x² + 6x + 9 = 25 are equivalent to x² + 6x = 16.
Learn more about quadratic equation here: https://brainly.com/question/17718371
#Tag #SPJ2
Can anybody explain how to solve this? Ur girl is kinda in a crisis rn...
Answer:
Slope= 1/2
y-intercept= -1
Step-by-step explanation:
So the formula that the equation is following is y=mx+b.
M stands for slope and b is the y-intercept.
A beach umbrella has a circumference of 8.8 feet what is the radius of an umbrella?
Answer:
radius = 1.4
Step-by-step explanation:
The formula for circumference is as follows:
[tex]C = d\pi[/tex]
or
[tex]C = 2r\pi[/tex]
However, these formulas are the same, because the diameter is equal to the radius times 2. I prefer to use the first (it gives you less values to work with).
Anyhow, We would substitute like this:
[tex]8.8 = d\pi[/tex]
We know that pi, is going to be equal to: 3.14159
So we work from there...
[tex]8.8=d(3.14159)\\2.8011=d[/tex]
Diameter divided by 2 would be the radius, and thats:
1.4006
or 1.4
Owen and Ethan have $175 together. How much money does each of them have if Ethan has $33 more than Owen.
Owen has $
Ethan has $
Answer:
Owen has $71 and Ethan has $104
Step-by-step explanation:
Create a system of equations where o is how much money Owen has, and e is how much Ethan has
x + e = 175
e = x + 33
Solve by substitution by plugging in o + 33 in as e, in the first equation
o + e = 175
o + (o + 33) = 175
2o + 33 = 175
2o = 142
o = 71
So, Owen has $71 dollars
To find how much Ethan has, add 33 to this, since he has $33 more than Owen
71 + 33
= 104
So, Owen has $71 and Ethan has $104
What is the value of 7, 488 / 416
Answer:
8.17307692308
Step-by-step explanation:
7,488 divided by 416 is 18 (:
Calculate the side lengths a and b to two decimal places
Answer:
E
Step-by-step explanation:
using the Sine rule in Δ ABC
[tex]\frac{a}{sinA}[/tex] = [tex]\frac{b}{sinB}[/tex] = [tex]\frac{c}{sinC}[/tex]
where a is the side opposite ∠ A , b opposite ∠ B , c opposite ∠ C
we require to calculate ∠ C
∠ C = 180° - (64 + 85)° = 180° - 149° = 31°
then to find a , using
[tex]\frac{a}{sinA}[/tex] = [tex]\frac{c}{sinC}[/tex]
[tex]\frac{a}{sin64}[/tex] = [tex]\frac{9.3}{sin31}[/tex] ( cross- multiply )
a × sin31° = 9.3 × sin64° ( divide both sides by sin31° )
a = [tex]\frac{9.3sin64}{sin31}[/tex] ≈ 16.23 ( to 2 decimal places )
then to find b , using
[tex]\frac{b}{sinB}[/tex] = [tex]\frac{c}{sinC}[/tex]
[tex]\frac{b}{sin85}[/tex] = [tex]\frac{9.3}{sin31}[/tex] ( cross- multiply )
b × sin31° = 9.3 × sin85° ( divide both sides by sin31° )
b = [tex]\frac{9.3sin85}{sin31}[/tex] ≈ 17.99 ( to 2 decimal places )
Jean puts 12 books on a shelf in random order. Three are by the same author. What is the probability that those 3 books will be next to each other?
it's one of these...
4.55%
8.33%
Answer:
4.55
Step-by-step explanation:
AEight different books were put on a shelf in random order. Calculate probability that two specific books were put near each other.
My answer: Let's divide the space on the shelf into eight slots. Let's also name our two books, "A" and "B" respectively. We have two sets of combinations - in the first set of combinations we have AB (i.e. A goes first). For example, A is put into the first slot and B is put into the second slot. Next example, A is put into the second slot and B is put into the third slot. And so on. There are 7 such AB combinations in total. By the same logic there are also 7 BA combinations. Obviously there is no overlap between said combinations, thus we can sum them up and get 14 combinations in total where books A and B are put side by side.
As for number of total combinations of books on the bookshelf, it's equal to "n!", where n is equal to 8. Why? Because in order to calculate combinations when repetitions are forbidden and order is important we use this formula:
I need help with this if anyone got a answer tell me pls
Answer:
15
Step-by-step explanation:
30 + 4x=90
4x=60
x=15
Find the number line with the correct letter placement for each value.
A=73,B=−67,C=127,D=−1.35
Choose one correct answer.''
Answer:
Step-by-step explanation:
a
Quinn correctly answered 72 questions on a test, getting a score of 80%. How many questions were on the test?
Answer:
90
Step-by-step explanation:
PLS HELP I NEED HELP SO SOOON PLEASEEDSrewrite without absolute value for the given condition y=|x-5|+|x+5| if -5
answer: i think i failed this part in class
Can someone help me with these two questions