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3 years ago

I need help ASAP!!!Please explain your answer

Mathematics

1 answer:

slavikrds [6]3 years ago

4 0

Answer:

Step-by-step explanation:

V = B * h

B = pi r^2

r = 12 km

B = 12^2 * pi

B = 144 * pi

h = 7 km

Volume = 144 *7 * pi

Volume = 1008 * pi

Volume = 3165.1

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Ik theanswer is 2,1 how do i sole it tho

kirza4 [7]

Answer:

Step-by-step explanation:

y = 3x - 5

6x + 3y = 15

Substitute the first equation into the second

6x + 3(3x - 5) = 15

6x + 9x - 15 = 15

15x = 30

x = 2

Then use the answer in the first equation and solve

y = 3(2) - 5

y = 6 - 5

y = 1

7 0

2 years ago

What is the rate of return for an investor who pays

mylen [45]

Answer:

The rate of return for the investor is 4.95 %.

Step-by-step explanation:

The required rate of return can be determine with the help of IRR formula given below. To use the formula first we have to calculate NPV using one two rates that is 5% and 10%.

NPV (5%)= (-$1,054.47) +(1000*7%*0.952) + ($1,037.19*0.952)

= -0.42512

NPV (10%) = (-$1,054.47) +(1000*7%*0.909) + ($1,037.19*0.909)

=-48.03

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= 4.95 %

7 0

4 years ago

The diagonal length of a kite is multiplied by 8. Which of the following describes the effect of this change on the area? HELP P

topjm [15]

I think it is either a or c

4 0

4 years ago

Solve the proportion for X. 5/2.5= X/2 1 4 5.5 6.25

Sav [38]

Answer:

$\large \boxed{X = 4}$

Step-by-step explanation:

5/2.5 = X/2

To solve a proportion, use the following equation:

(numerator * opposite denominator) = (numerator * opposite denominator)

Substitute in given numbers

(5 * 2) = (X * 2.5)

Multiply to simplify

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Divide both sides of this equation by 2.5

$\large \boxed{X = 4}$

Hope this helps :)

8 0

3 years ago

#9. Find the area of the triangle. Thanks!

Phoenix [80]

Answer:

Step-by-step explanation:

The area (A) of the triangle is calculated using

A = $\frac{1}{2}$ ab sinC

where a, b are the 2 sides and C is the angle between them

here a = 9, b = 15 and C = 70°, hence

A = 0.5 × 9 × 15 × sin70° = 63.4 cm² → C

7 0

3 years ago

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