All categories

2 years ago

Help me please i will give brainiest

Mathematics

2 answers:

dimulka [17.4K]2 years ago

7 0

Answer:

1/6*π*18^3≈3053.62806

Step-by-step explanation:

vfiekz [6]2 years ago

6 0

Answer: 3054 in^3

Step-by-step explanation: The formula for the volume of a sphere is V = 4/3 pi r^3, where r is radius.

Since the diameter is 18in, the radius would be 1/2 or 9in, and plugged in V is

V = 4/3(3.1415)(9)^3

You might be interested in

Find the sum of the following infinite geometric series.

Crazy boy [7]

Answer:

Final answer is $\frac{80}{3}$ .

Step-by-step explanation:

We have been given an infinite geometric series.

Now we need to find it's sum.

common ratio $r=-\frac{1}{5}$ .

plug n=1 to get the first term

$a_n=32\left(-\frac{1}{5}\right)^{\left(n-1\right)}$

$a_1=32\left(-\frac{1}{5}\right)^{\left(1-1\right)}$

$a_1=32\left(-\frac{1}{5}\right)^{\left(0\right)}$

$a_1=32\left(1\right)$

$a_1=32$

Now plug these values into infinite sum formula

$S_{\infty}=\frac{a_1}{1-r}=\frac{32}{1-\left(-\frac{1}{5}\right)}=\frac{32}{1.2}=\frac{320}{12}=\frac{80}{3}$

Hence final answer is $\frac{80}{3}$ .

8 0

3 years ago

What is the quantity 9 more than a number

makvit [3.9K]

'n' = a number

the algebraic form is:

n + 9

4 0

3 years ago

The ratio of 7th graders to 6th graders kn the debate team is 3:2. There are a total of 30 debate team members. How many 6th gra

user100 [1]

Answer:

The answer is 18 on the 7th grade, 12 on the 6th grade.

Step-by-step explanation:

3x6=18
2x6=12

18+12=30

7 0

2 years ago

Janet is buying a $28 necklace. The store reduces the price by 20% and then applies a $2 off coupon. How much will Janet pay for

antoniya [11.8K]

Original cost of the necklace = $28
Percentage by which the store reduces the price of the necklace = 20%
Amount of discount given
by the store on the necklace = (20/100) * 28
   = 28/5 dollars
   = 5.6 dollars
So
The price of the necklace after discount = (28 - 5.6) dollars
   = 22.4 dollars
Amount of discount on coupon = $2
Then
Price of the necklace after deducting coupon discount = (22.4 - 2) dollars
= 20.4 dollars
So Janet will pay 20.4 dollars for the necklace.

8 0

3 years ago

Read 2 more answers

Solve using the addition property of equality. Be sure to check your proposed solution.<br><br>

Zepler [3.9K]

Use brain.ly ok be a smart kid truu

3 0

2 years ago