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4 years ago

#43 I need some help please

Mathematics

1 answer:

Norma-Jean [14]4 years ago

3 0

Answer:

It will end up a decimal since it is not divisible by 5. The only numbers divisible by 5 end in 5 or 0.

234÷5 = 46.8

Step-by-step explanation:

The quotient is a decimal number since 234 is not divisible by 5

The only numbers divisible by 5 end in 5 or 0.

234 ÷ 5

200 ÷5 = 40

30 ÷5 =6

4 ÷5 = 4/5 =.8

40+6+.8 = 46.8

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A cone with height h and radius r has volume V = 13πr^2h. If the cone has a height of 6 in. and volume V = 8πx^2 + 24πx + 18π, w

torisob [31]

ANSWER

$r = x - \frac{3}{2}$

EXPLANATION

The volume of the cone is

$V=8\pi \: {x}^{2} + 24\pi \: x + 18\pi$

The height of the is 6 inches.

We put the values into the volume of cone to get.

$8\pi \: {x}^{2} + 24\pi \: x + 18\pi = \frac{1}{3} \times \pi \: {r}^{2} \times 6$

$8\pi \: {x}^{2} + 24\pi \: x + 18\pi = 2 \pi \: {r}^{2}$

Divide through by 2π.

$4 {x}^{2} + 12x + 9 = {r}^{2}$

The expression on the LHS is a perfect square trinomial.

$( {x - \frac{3}{2} })^{2} = {r}^{2}$

$r = x - \frac{3}{2}$

5 0

4 years ago

Read 2 more answers

Answer to question first

andrey2020 [161]

Answer:

C. But be careful. It depends if you have been told what I was having trouble with.

Step-by-step explanation:

The question is a little unclear. If the actual interest is constant for all situations, the answer is C. The more times you compound, the more interest you will accumulate. Banks don't do it that way. It they compound every three months, then they cut the interest rate by a quarter.

So the interest would look like (1 + 0.022/4)*principle. Whoever made the question has to make clear what is going on. My guess is the intended answer is C.

5 0

3 years ago

H.F.C of x^4 +(2b^2 -a^2 )x^2+b^4 and x^4 +2ax^3 +a^2x^2 -b^4

Trava [24]

Answer:

The answer is x^2+ax+b^2