Answer:
0.086466165413534
Step-by-step explanation: used a calculator
14 since there are 3 feet in a yard.
One square foot is 12in x 12in which means one square foot is equal to 144 square inches.
If 8 pieces of glass = 144 square inches
then let's multiply both sides since 144 x 6 = 864
(8 pieces of glass) x 6 = (144 square inches) x 6
so 48 pieces of glass = 864 square inches
The answer is B 48 pieces
Answer:
Perpendicular.
Step-by-step explanation:
Find the slopes of each line through 
Line a:
m = (-10-4) / (8--4)
= -14/12
= -7/6
Line b:
m = (20-8) / (18 -4)
= 12/14
= 6/7
When lines are parallel, they have the same slope. Since -7/2≠6/7, they are not parallel.
When lines are perpendicular, the product of the slopes equals -1.
-7/6 x 6/7 = -1
The product is -1, hence they are perpendicular lines.
<u>Answer:</u>
<u>Step-by-step explanation:</u>
<u>We can find 'a' through Pythagoras theorem.</u>
- => 8² = 3² + a²
- => 64 = 9 + a²
- => a² = 55
- => a = √55
- => a = 7.416 = 7.4
Hoped this helped.