Answer:
A 7,4.5
Step-by-step explanation:
-1, -35.
When you multiply two negative numbers, you get a positive result.
Answer:
B
Step-by-step explanation:
The chances of the first student walking to school is 7/30.
Without replacement, there are 29 students left. Hence the chance of the second student walking to school is 6/29 of the original 7/30 chance.

Answer:

Step-by-step explanation:
Given


<em>See attachment</em>
<em></em>
Required
Determine the total surface area, T
T is calculated using:

Substitute values for r and h


Remove bracket


Take 
So, we have:


--- approximated.
<em>Hence, the surface area is 1300 square inch</em>
Answer:

Step-by-step explanation:
All the angles in a triangle add up to 
Every right angle triangle has a right angle in it which is 
So to find the remaining angle, you do
-
-
= 