Answer:
273 m^2
Step-by-step explanation:
Firstly, you should find the area of the triangle. Remember that the formula for a triangle's area is (Base x Height) ÷ 2
Therefore,
11 x 14 is 154
154/2 = 77 m^2
Then, we find the area of the square which is just Base x Heigh
14 x 14 is 196m^2
And finally, we just add the two
77 + 196 = 273 m^2
The reason it's not m^3 is because we're not dealing with a third dimensional figure.
Btw, ^ means to the power of.
<span>So we want to rewrite the function v=8h^2 in terms of h so that it can represent the height of an object that is launched upward. So we take a square root: sqrt v= h*sqrt 8. Then we divide both sides of the equation with sqrt 8: h=(sqrt v)/sqrt 8=sqrt(v/8). So our function is: h=sqrt(v/8) or h=(1/2)*sqrt(v/2). </span>
Answer:
(A)The sample comes from a population of tires with 60,000 miles where 5% of tires are worn out.
Step-by-step explanation:
The tire manufacturer has a 60,000 mile warranty for tread life. To verify the authenticity of its claim, it picks a sample of 250 tires (out of the population of tires) that have been used for 60,000 miles.
Given the hypothesis:
: The proportion of tires that are worn out after 60,000 miles is equal to 0.05.
: The proportion of tires that are worn out after 60,000 miles is less than 0.05.
It is assumed that 5% of the tires in the sample are worn out and the hypothesis is formulated to prove or disprove this assumption.
