S=d/t
s=40/4
s=10
Therefore the average speed of the football is 10yd/s!
Well there is no question that i can see so if this is a riddle then it is already properly solved due to no question at all
The revenue when the number of units is 18 is -135
<h3>How to determine the revenue?</h3>
The given parameters are:
Revenue function
R(x) = x *P(x)
Where
P(x) = 42/(4) − x
Substitute P(x) = 42/(4) − x in the equation R(x) = x *P(x)
R(x) = x * [42/(4) − x]
The number of units sold is 18.
So, we have:
R(18) = 18 * [42/(4) − 18]
Evaluate the expression
R(18) = -135
Hence, the revenue when the number of units is 18 is -135
Read more about revenue functions at:
brainly.com/question/25623677
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<u>Given</u>:
The given expression is 
We need to determine the equivalent expression.
<u>Equivalent expression:</u>
Let us determine the equivalent expression.
The equivalent expression can be determined by simplifying the given expression.
Hence, let us apply the exponent rule to simplify the given expression.
Thus, applying the exponent rule,
, we get;

Rewriting the expression, we get;

Simplifying, we get;

Thus, the equivalent expression is 
Hence, Option C is the correct answer.
Answer: 543
Step-by-step explanation:
Given : Level of confidence = 0.98
Significance level : 
By using the normal distribution table,
Critical value : 
Margin of error : 
The formula to find the population proportion if prior proportion of population is unknown :-


Hence, the company survey minimum sample having size =543