81

A square pyramid has a volume of 108 cubic feet and a height of 4 feet.

xxMikexx [17]

Answer:

The answer is 9 feet.

Step-by-step explanation:

Please mark brainliest.

4 0

3 years ago

3.

Vitek1552 [10]

To solve this we are going to use the future value of annuity due formula: $FV=(1+ \frac{r}{n} )*P[ \frac{(1+ \frac{r}{n})^{kt}-1 }{ \frac{r}{n} } ]$
where
$FV$ is the future value
$P$ is the periodic deposit
$r$ is the interest rate in decimal form
$n$ is the number of times the interest is compounded per year
$k$ is the number of deposits per year

We know for our problem that $P=420$ and $t=15$ . To convert the interest rate to decimal form, we are going to divide the rate by 100%: $r= \frac{10}{100} =0.1$ . Since Ruben makes the deposits every 6 months, $k=2$ . The interest is compounded semiannually, so 2 times per year; therefore, $k=2$ .
Lets replace the values in our formula:

$FV=(1+ \frac{r}{n} )*P[ \frac{(1+ \frac{r}{n})^{kt}-1 }{ \frac{r}{n} } ]$
$FV=(1+ \frac{0.1}{2} )*420[ \frac{(1+ \frac{0.1}{2})^{(2)(15)}-1 }{ \frac{01}{2} } ]$
$FV=29299.53$

We can conclude that the correct answer is <span>$29,299.53</span>

8 0

3 years ago

What number should be placed in the box to help complete the division calculation?

Katarina [22]

Answer:

180

Step-by-step explanation:

its 180 cos its the closest number to 193 that 18 can go in, your overall answer to the equation is 310 remainder 13. But I dont know if u need that..

5 0

3 years ago

Rachel used 9 cups of flour and 4 teaspoons of sugar.

Firdavs [7]

Answer:

54 cups of flour

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

How can I solve ¾ - (-5/12)?

Oksana_A [137]