Answer:

Step-by-step explanation:
We are given the following in the question:
Area of rectangle = 81 square meter.
Let l be the length of the rectangle and b be the breadth of rectangle.
Then, we can write,

Perimeter of rectangle =

Putting values, we get,

Speed= distance/time
= 1110/15
= 74 feet per second
Answer:
0
Step-by-step explanation:
h(x) = -2x - 4
h(-2) = -2*(-2) - 4
= 4 - 4 = 0
Answer:
10
Step-by-step explanation:
used Pythagorean theorem
a ^2+b^2=c^2
6^2+8^2=c^2
36+64=c^2
c^2= 100
find square root of 100 to find c
=10