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2 years ago

Surface area of hemisphere with diameter of 18

Mathematics

1 answer:

saul85 [17]2 years ago

6 0

Answer:

In terms of pi: 243 $\pi$

in decimal form: 763.407

Step-by-step explanation:

to find surface area of a hemisphere the formula is,

$3\pi r^{2}$

diameter (d) = 18

radius = d / 2 = 18 / 2

radius = 9

$3\pi (9)^{2} \\3\pi (81)\\243\pi \\OR\\763.407$

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There is 1/4 of a dish of candy left on the table. Three brothers are going to share the candy evenly. Name the fraction of the

8_murik_8 [283]

1/12
1/4 divided by 3 equals 1/12
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8 0

3 years ago

What is 5(x-2)-14x when x=4

nevsk [136]

Answer:

-46

Step-by-step explanation:

5 (x - 2) - 14x. x=4

5 (4 - 2) - 14(4) (distribute)

20 - 10 - 14(4) (multiply)

20 - 10 - 56 (subtract and solve.)

10 - 56 = -46 - solution

hope this helps (:

6 0

3 years ago

Kathy Parker's employer pays 65% of the total cost of her $5,489 health insurance premium. What is her biweekly deduction for th

zzz [600]

Answer:

$73.89

Step-by-step explanation:

We have been given that Kathy Parker's employer pays 65% of the total cost of her $5,489 health insurance premium.

This means Kathy pays 35% of her health insurance premium.

Let us find 35% of $5489.

$\text{Amount of health insurance premium paid by Cathy per year}=\frac{35}{100}\times\$5489$

$\text{Amount of health insurance premium paid by Cathy per year}=0.35\times\$5489$

$\text{Amount of health insurance premium paid by Cathy per year}=\$1921.15$

As we are asked to find Cathy's biweekly deduction for the insurance we will divide amount of premium paid by Cathy by 26 as biweekly is paid 26 times per year.

$\text{Cathy's biweekly deduction}=\frac{\$1921.15}{26}$

$\text{Cathy's biweekly deduction}=\$73.89$

Therefore, Cathy's biweekly deduction for the insurance is $73.89.

8 0

3 years ago

The doctor recommended that Matt decrease the number of calories he consumed from 2500 to 1800 by what percent did the number of

never [62]

Answer: 28%

Step-by-step explanation:

1800/2500 = 0.72

0.72 = 72%

100% - 72% = 28%

3 0

3 years ago

What are the ordered pairs

neonofarm [45]

As there is no other info given .

So we can choose any two ordered pairs whose mid point will come out to be (4,-10)

So we can one subtract a number from either x or y , and correspondingly add the same number to same variable again.

for example

we can add 2 to x and subtract 2 from x

So we get two ordered pairs as

(4-2 , -10) , (4+2, -10)

(2,-10) and (6,-10)

6 0

3 years ago