3 years ago

What is the cube root of b^27

Mathematics

1 answer:

NeX [460]3 years ago

8 0

Answer:

b^9

Step-by-step explanation:

We can only subtract or add roots to each other but if we are cubing we can divide them by 3.

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viktelen [127]

Answer:

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Step-by-step explanation:

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2 years ago

What is the common ratio of the geometric sequence 16, 24, 36, 54, ...?

erastovalidia [21]

Answer:

Step-by-step explanation:

16 x 3/2 = 24

24 x 3/2 = 36

36 x 3/2 = 54

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3 years ago

The United States Air Force has 19 women for every 81 men enlisted. If a squadron has 750 members, approximately how many are wo

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Answer:
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3 years ago

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bonufazy [111]

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2 years ago

Find the value of a and of b for which<br>(a) the solution of x2 + ax < b is<br>-2<x < 4

KengaRu [80]

Answer: $a = -2$

$b = 8$

Step-by-step explanation:

Given :

$x^{2} +ax$

re - writing the equation , we have

$x^{2} +ax-b$

we need to find the value of a and b for which -2<x < 4 , this means that the roots of the quadratic equation are -2<x < 4.

The formula for finding the quadratic equation when the roots are known is :

$x^{2}$ - sum of roots(x) + product of root = 0

sum of roots = -2 + 4 = 2

product of roots = -2 x 4 = -8

substituting into the formula , we have:

$x^{2} -2x-8=0$ , which could be written in inequality form as

$x^{2} -2x-8$

comparing with $x^{2} +ax-b$ , it means that :

$a = -2$

$b = 8$

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2 years ago