Answer:
a)8/21
b)1/9
Step-by-step explanation:
because when we divide fraction we resprocal the divisor
The rise from the ground by the skateboard is 5.5 inches
<h3>How to determine the height above the ground?</h3>
The length of the skateboard is given as:
Length (l) = 18 inches
The angle of elevation (x) is
x = 17∘
Represent the height with h.
The value of h is calculated using the following tangent ratio:
tan(x) = h/l
Make h the subject
h = l * tan(x)
Substitute known values
h = 18 * tan(17)
Evaluate
h = 5.5
Hence, the rise from the ground by the skateboard is 5.5 inches
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Answer:
x = 1/72
Step-by-step explanation:
72(x)=1
We need to isolate x, and since x is being multiplied by 72, we can isolate it by dividing both sides by 72.
72x/72 = 1/72
x= 1/72
Step-by-step explanation:
y = 8x² + 8x - 96
y = 8(x² + x - 12)
y = 8(x + 4)(x - 3)
When y = 0, 8(x + 4)(x - 3) = 0.
=> x = -4 or x = 3. (B)
Answer:
6036 $
Step-by-step explanation:
one month =4 weeks
12 months =12 ×4 =48 weeks
48 ×125,75 =6036 $