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hodyreva [135]
3 years ago
15

An object moves 8 2/3 miles per hour how long will it take to get to 5 1/5 miles

Mathematics
1 answer:
Ad libitum [116K]3 years ago
7 0

Answer:

24/65 hour

Step-by-step explanation:

16/5 / 26/3

Keep, change, flip

16/5 x 3/26

48/130 which reduces to the answer

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The square root of 42. The answer needs to be simplified. The problem must be solved by using perfect squares. The answer can't
Rasek [7]
From what I can tell, this can't be simplified, because there are no factors of 42 that are perfect squares.  I would leave it as the square root of 42.
5 0
3 years ago
Solve for x <br> 8x+1&gt;−31
slavikrds [6]

8x + 1 >  - 31 \\ 8x >  - 1 - 31 \\ 8x >  - 32 \\ x >  \frac{ - 32}{8}  \\ x >  - 4

3 0
3 years ago
Px + qy = r<br> 2px - qy = 2r<br> When solving this system of equations, x =
VladimirAG [237]
Px + qy = r
2px - qy = 2r
----------------add
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8 0
3 years ago
Read 2 more answers
I do not know how to do this need help
Diano4ka-milaya [45]

Remark

First of all you have to declare the meaning of g(f(x)) After you have done that, you have to make the correct substitution.

Givens

f(x) = 4x^2 + x + 1

g(x) = x^2 - 2

Discussion

What the given condition g(f(x)) means is that you begin with g(x). Write down g(x) = x^2 -  2

Wherever you see an x on either the left or right side of the equation, you put fix)

Then wherever you see f(x) on the right you put in what f(x) is equal to.

Solution

g(x) = x^2 - 2

g(f(x)) = (f(x))^2 - 2

g(f(x)) = [4x^2 + x + 1]^2 - 2

f(x)^2 =

4x^2 + x + 1

<u>4x^2 + x + 1</u>

16x^4 + 4x^3 + 4x^2

            4x^3  + x^2 +   x

<u>                         4x^2 + x  + 1</u>

16x^4 + 8x^3 + 9x^2 + 2x + 1

Answer

g(f(x)) = 16x^4 + 8x^3 + 9x^2 + 2x + 1 - 2

g(f(x)) = 16x^4 + 8x^3 + 9x^2 + 2x - 1

5 0
3 years ago
Is my answer correct?
GalinKa [24]
Your answer is correct :)
3 0
3 years ago
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