suppose that iq scored for a population are approximately normally distributed with a mean of 100 and a standard deviation of 15
1 answer:
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Option a:
sin A for the triangle is .
Solution:
The given triangle is a right triangle.
The adjacent side to angle A is AC.
The opposite side to angle A is BC.
Hypotenuse is AB.
AC = 8, BC = 6 and AB = 10.
Using trigonometric ratio formulas,
Divide both numerator and denominator by 2, we get
Hence sin A for the triangle is .
Option a is the correct answer.
Answer:
138 meters
Step-by-step explanation:
step 1
Find the radius of the circular city plaza
The area is equal to
we have
substitute
solve for r
step 2
we know that
To find out how long is the row of bricks, determine the circumference of the circular city plaza
The circumference is equal to
we have
substitute