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KengaRu [80]
3 years ago
10

Need this done by today! 2-2-2021

Mathematics
2 answers:
aksik [14]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Mark me as brainliest

marshall27 [118]3 years ago
3 0

Answer:

D

Step-by-step explanation:

took the test

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Caroline’s hair is 7 inches long and grows about ⅕ inch each month. Trinity’s hair is 10 inches long and grows about 1/10 inch e
sashaice [31]
B
I know this right away because notice how it says “EACH month.” When it includes each you have to have an “x” beside the number to make it each month. If you don’t have an x it will just be “a single month.”

Sorry if that’s confusing I’m bad at explaining but have a nice day:))
7 0
3 years ago
A certain isotope decays so that the amount A remaining after t years is given by:
pashok25 [27]

f(h(x))= 2x -21

Step-by-step explanation:

f(x)= x^3 - 6

h(x)=\sqrt[3]{2x-15}

WE need to find f(h(x)), use composition of functions

Plug in h(x)

f(h(x))=f(\sqrt[3]{2x-15})

Now we plug in f(x) in f(x)

f(h(x))=f(\sqrt[3]{2x-15})=(\sqrt[3]{2x-15})^3 - 6

cube and cube root will get cancelled

f(h(x))= 2x-15 -6= 2 x-21

3 0
3 years ago
Please help me for 21 points.
gregori [183]

Answer:

24.44 percent

Step-by-step explanation:

F=Friday

S=Saturday

P(F or S)= 20/90+22/90-20/90=22/90

22/90 as percentage is 24.44 percent

5 0
3 years ago
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Find the square of the number of (-2/5) i will give something really good if you answer
rewona [7]

Answer:

4/25

Step-by-step explanation:

(-2/5) ^2

This means

( -2/5) * (-2/5)

4/25

7 0
3 years ago
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The perimeter of a rectangular banner is 72 inches. The width of the banner is 1/3 its length. What is the area of the banner? T
Gre4nikov [31]
To find the area you will need to begin with the information about the perimeter.  You will use the formula P = 2l + 2w.  You will replace what we know in this formula making it 72 = 2l + 2 (1/3l).  You will replace the width with the information we know about the width.  Simplify the expression on the right to make a new equation 72 = 2 2/3 l.  Solve for the length by dividing both sides by 2 2/3.  When you divide 72 by 2 2/3 you get 27 inches as your answer.  This is the length.  Once you know the length, you can take 1/3 of it (1/3 x 27) to get the width of 9 in.  Now that you know the length and the width, you will multiply these together (27 in. x 9 in) to get an area of 243 square inches!
5 0
3 years ago
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