Marina wants to install security cameras in her store, which has dimensions 48 feet by 48 feet. each camera can view an area of approximately 128 ft2, with a viewing area shaped like a right triangle.

the distance between grid lines is 4 feet.

how many cameras will be necessary to cover the entire store?

18 cameras will be necessary to cover the entire store.

Step-by-step explanation:

Length of the store= l = 48 feet

Width of the store = w = 48 feet

Area of the store , A= l × w =

Area covered by single camera , a=

Let the n number of cameras are required to cover the store .

18 cameras will be necessary to cover the entire store.

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice