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sergiy2304 [10]

3 years ago

8

A playhouse is in the shape of a regular octagonal pyramid with a side length of 3 feet and a slant height of 12 feet. The wood

used to build the walls of the playhouse costs $4 per square foot. What is the cost of the wood for the walls of the playhouse?

2 answers:

Cloud [144]3 years ago

5 0

Answer:

$432

Step-by-step explanation:

g100num [7]3 years ago

3 0

I believe it is 144 dollars

You might be interested in

Solve the inequality.<br><br>4x+6<3x-5

Scrat [10]

Answer:

4x+6<3x-5

4x+6 =3x-5

collect like terms

4x-3x =3x-5

x= -11

x<-11

5 0

3 years ago

The equation of a line is given by, 13x – y + 12 = 0. Find the slope and both the intercepts.

MArishka [77]

Answer:

The slope is 13.

The x intercept is $x=\frac{-12}{13}$ .

The y intercept is $y=12$ .

Step-by-step explanation:

1. Finding the slope.

This is a linear equation, because <u>it's graph forms a line</u>. In a linear equation, the slope is always the value that multiplies x. In this case, x is being multiplied by 13, therefore, <u>the slope is 13</u>.

2. Finding the x intercept.

The x intercept is found when the value of y is 0. Let's replace the value of y for 0 in the equation and solve the x:

$13x-y + 12 = 0\\\\13x-(0) + 12 = 0\\\\13x+12 = 0\\\\13x= -12\\\\x=\frac{-12}{13}$

<u>The x intercept is </u> $x=\frac{-12}{13}$ <u>.</u>

3. Finding the y intercept.

The y intercept is found when the value of x is 0. Let's replace the value of x for 0 in the equation and solve the y:

$13x-y + 12 = 0\\\\13(0)-y + 12 = 0\\\\-y + 12 = 0\\\\-y=-12\\\\y=12$

<u>The y intercept is </u> $y=12$ <u>.</u>

3 0

2 years ago

There are five students of different ages. Their median age is 13 years A) what are two possibilities for the ages of the three

Levart [38]

A) the median is the middle measurement. Their ages could be 13, 14 and 15.
B) 2 students must be younger than 13
C) Like I said, the median is the middle measurement. If you have a list of numbers, you have to order them and take the middle number.

:) Have a nice day and maybe consider grading this answer brainliest? <3

6 0

3 years ago

A ball is dropped from a height if 30 feet the ball bounces after each bounce the height attained by the ball is 60% of the prev

Oliga [24]

This information will be modeled using the formula
thus we shall have:
Sn=ar^n
where:
a=first term
r=common ratio
from the information:
a=30 ft
r=60/100=3/5=0.6
therefore the formula will be
Sn=30(0.6)^n
where n is the number of terms:
thus when n=5 th sum will be:
S5=30(0.6)^5
S5=30(0.6)^5
S5=2.33 ft
Answer: 2.33 ft

6 0

3 years ago

A scuba diver descends in the water at a rate of 20 1/2 feet per minute for 2.8 minutes. He immediately changes course when he s

N76 [4]

Answer:

7.4 feet below sea level

Step-by-step explanation:

Assumed the starting point is the sea level 0.

<u>After 2.8 min the diver is at position:</u>

20 1/2 * 2.8 =
20.5 * 2.8 =
57.4 feet below sea level

<u>The position change after next 2 minutes:</u>

25*2 = 50 feet

<u>The position of the diver after 4.8 min:</u>

57.4 - 50 = 7.4 feet below sea level

3 0

3 years ago