Answer:
x = 11 and 
Step-by-step explanation:
If LMNO is a parallelogram then it's opposite sides will be equal.
So, LM = ON
⇒ 4x + 4 = 5x - 7
⇒ x = 11
Now, MN = OL
⇒ x - 7 = 3y - 4
⇒ 11 - 7 = 3y - 4 {Since we already have, x = 11}
⇒
(Answer)
Using the confidence interval, it is found that the correct conclusion regarding the hypotheses test is given by:
Reject H0. There is convincing evidence that this individual’s true mean heart rate while working out differs from 150.
<h3>What are the hypotheses tested?</h3>
At the null hypotheses, it is tested if the mean is of 150, that is:

At the alternative hypotheses, it is tested if the mean is different of 150, hence:
.
The confidence interval is (158, 167). Since it does not contain 150, we reject the null hypotheses, hence the correct option is:
Reject H0. There is convincing evidence that this individual’s true mean heart rate while working out differs from 150.
More can be learned about confidence intervals at brainly.com/question/25890103
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NQS= 30
you just subtract 78-48 to get 30
Answer:
Step-by-step explanation:
-3x(5-4) + 3(x-6)
-15x + 12 + 3x - 18
-15x + 3x +12 - 18
-12x - 6