Answer: 7(-4-x) —> -28-7x. 7(4+x) —> 28+7x. -7(-4+x) —> 28-7x. -7(4-x) —> -28+7x
Step-by-step explanation:
E and ln are each other's opposite. So the answer is simply 7x
Answer: C .
and 
Step-by-step explanation:
Definition:
Null hypothesis
is a statement about the population parameter according to the objective raised by the researcher . It contains '=' , '≤' and '≥' signs.
Alternative hypothesis
is also a statement about the population parameter but against null hypothesis . It contains '≠' , '<' and '>' signs.
Let
be the average customer waiting time for the population.
Given : The average customer waiting time at a fast food restaurant has been 7.5 minutes.
Objective of test : After using new system , the average customer waiting time is at least 7.5 or less than 7.5.
Then, the null and alternative hypothesis for this scenario will be :


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▹ Answer
<em>2c - 2b - a</em>
▹ Step-by-Step Explanation
(c + b + a) + (-2a - 3b + c)
<u>Remove the parentheses</u>
c + b + a + (-2a - 3b + c)
<u>Collect like terms</u>
2c + b + a - 2a - 3b
<u>Final Answer</u>
2c - 2b - a
Hope this helps!
- CloutAnswers ❁
Brainliest is greatly appreciated!
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I'm guessing you'd combine them. And the end equation would be
81x6y