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ELEN [110]
3 years ago
13

Please help with #7!!!

Mathematics
1 answer:
ioda3 years ago
8 0

Answer:

44

Step-by-step explanation:

Given a polynomial f(x) divided by (x + h) then the remainder is f(- h)

Here f(x) is divided by (x + 4), thus remainder is calculated as

f(- 4) = (- 4)³ + 5(- 4)² - 7(- 4)

       = - 64 + 5(16) + 28

       = - 64 + 80 + 28 = 44 ← Remainder

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The right pengtagonal prism has a height of of 14 units.
siniylev [52]

Answer:

  30 units

Step-by-step explanation:

The volume is given by ...

  V = Bh

Filling in the given numbers, we can find the area of the base (B) to be ...

  840 = B(14)

  840/14 = B = 60

The area of the base is given by the formula ...

  B = (1/2)Pa

where P is the perimeter and a is the apothem. Filling in the numbers we know, we have ...

  60 = (1/2)P(4)

  30 = P . . . . . . divide by 2

The perimeter of the base is 30 units.

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3 years ago
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enyata [817]
You will just get 18 feet 3inches or 18.3 feet
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3 years ago
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A square has a perimeter of 40 m. What is the length of each side?
bekas [8.4K]

Answer:

10 m

Step-by-step explanation:

A square has all equal side lengths. If that is the case, the we have 4 sides that equal each other:

x + x + x + x = 40 m

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x = 10m

So each side is 10 m long.

7 0
4 years ago
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If a/b=2 what is the value of 4b/a​
bazaltina [42]

Anwer:

4b/a=2

Step-by-step explanation:

Lets assume:

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So a/b would equal 2.

4b/a indicates that you are going to multiply b times 4, meaning that in this scenario you would multiply 2 times 4.

4(2) = 8

and 8 divided by (4) is 2.

Why 4? Because remember a = 4 (in this scenario).

Other examples:

10/5 = 2, -->  4(5) = 20, -->  20/10 = 2.

20/10 = 2. --> 4(10) = 40, --> 40/20 = 2.

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4 years ago
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What is the cube root of 216?<br> -6<br> 6<br> 72<br> -72
Firdavs [7]

Answer:

The cube root for 216 is 6

Step-by-step explanation:

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4 years ago
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