Ask question

Ask question

All categories

2 years ago

7

Mary wants to figure out how much space she has in her pencil holder. What is the volume, in cubic centimeters, of her pencil ho

lder? Use 3.14 for TT
Formula: V = TTr2h

1 answer:

Scrat [10]2 years ago

4 0

This is a cylinder so the formula would be πr²h.

V = (3.14)(4)²(9)
V = 452.16

The volume of the pencil holder is 452.16 cm³

Hope this helps :)

You might be interested in

Here is a tape diagram representing the ratio of red paint to yellow paint in a mixture of orange paint.

Vinvika [58]

Answer:

2:3

Step-by-step explanation:

So there are 9 cups of red paint

There are 6 cups of yellow paint

Now we need yellow:red

6:9

Simplify it

2:3

So the ratio is 2:3 for yellow to red paint

3 0

2 years ago

22 random samples were selected from a population that has a normal distribution the sample has a mean of 99 and a standard devi

olga2289 [7]

Answer:

(96.91, 101.09)

Step-by-step explanation:

To calculate the interval, you require the Z value at 95% confidence interval. The Z value is 1.96. The formula to calculate the confidence interval:

$X-Zs/\sqrt{x} \\X+Zs/\sqrt{x}$

Where X is the mean and s is the standard deviation and x the sample size:

$99-1.96\cdot{5}/\sqrt{22} \\99+1.96\cdot{5}/\sqrt{22}$

The interval is (96.91, 101.09)

3 0

3 years ago

Read 2 more answers

Alex has 3,330 toothpicks . He wants to use them all to make a floor mat with 18 equal rows . How many toothpicks should Alex us

Rudik [331]

Answer:

Step-by-step explanation:

for this problem we have to

3330/18=185 toothpicks for each row

6 0

2 years ago

Read 2 more answers

- 3(x - 6) + 6 = 5x - 6. work<br>

MakcuM [25]

Answer:

= 15/4 as fraction

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Find four consecutive even integers such that if the sum of the first and third is multiplied

Alenkasestr [34]

Answer:

Step-by-step explanation:

-8-10,-12-14

-8 plus -12 is -20

-20 times 5 is -100

-14 times 8 is -112

-100 is 12 more than -112

6 0

2 years ago