Answer:
t = ±12
Step-by-step explanation:
t^2=144
Take the square root of each side
sqrt(t^2)=± sqrt(144)
t = ±12
Step-by-step explanation:
the perimeter = 17+19+21+33+27=117 cm
Answer:

Step-by-step explanation:
Given



Required
Find x
First, we calculate the amount paid in terms of the cost price.
This is calculated using:



Express as decimal

Open bracket

So, we have:
and
---- given
Equate both

Collect like terms



Solve for x


Answer: option A. 24 / 25
Step-by-step explanation:
Cos (Z) = Adj / Hypo
Cos (Z) = 24 / 25
Answer:
390cm
Step-by-step explanation:
1. find area of rectangle
1. 15cm x 20cm= 300 cm
2. find area of triangle
1. 1/2 (12 x 15)= 90cm
300+90