3 years ago

A stack of boards is 21 inches high. Each board is 1 3/4 inches thick. How many boards are there

Mathematics

1 answer:

Hunter-Best [27]3 years ago

7 0

21 divided by 1 3/4 equals twelve

You might be interested in

2. Maria has a garden that is 6 feet by 4 feet. What is the perimeter of Maria's garden?

Anton [14]

Answer:

= 20 ft

Step-by-step explanation:

The perimeter is found by

P = 2(l+w)

= 2(6+4)

=2(10)

= 20 ft

8 0

3 years ago

PLEASE ANSWER ILL GIVE YOU BRIANLIEST

GREYUIT [131]

Answer:

I Think It's 523.6 I don't know Tho

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

What is the radius of a sphere if its surface area is 2,122.64 square inches? (Use 3.14 for .)

Lady_Fox [76]

$\bf \textit{surface area of a sphere}\\\\
SA=4\pi r^2~~
\begin{cases}
r=radius\\
------\\
SA=2122.64
\end{cases}\implies 2122.64=4\pi r^2
\\\\\\
\cfrac{2122.64}{4\pi }=r^2\implies \cfrac{530.66}{\pi }=r^2\implies \sqrt{\cfrac{530.66}{\pi }}=r$

8 0

3 years ago

Read 2 more answers

The volume of this cone is 3,183.96 cubic meters. what is the height of the cone?

Mumz [18]

Answer:

Height of this cone is 26.5'6'3 meters -.071

Step-by-step explanation:

Mark me brainlist hope it helps

8 0

2 years ago

In the triangle below,

Greeley [361]

Answer:

12.3

Step-by-step explanation:

You will use cosine to solve for y because you are given the hypontenuse and need to find the adjacent side.

cos 35 degrees = adjacent/hypontenuse

cos 35 = y/ 15

15( cos35 ) = y

y=12.287

=12.3

7 0

3 years ago