1. The regular price of a sweater is $80. It is on sale for 25% off. Find the final price
1 answer:
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The answer is y=0
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Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.
See the attached photo for details
Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.
Answer:
<em>options: A,C,E </em>are correct.
Step-by-step explanation:
We have to find the expression equivalent to the expression:
we know that:
Hence,
-----(1)
A) (same as(1))
Hence, option A is correct.
B) 7 ; which is a different expression from (1)
Option B is incorrect.
C) (Same as (1))
Option C is correct.
D) which is a different expression from (1)
Hence, option D is incorrect.
E) ; which is same as (1)
Hence, Option E is correct.
F) ; which is not same as expression (1)
Hence, option F is incorrect.
Answer:
The 95% confidence interval for the mean change in blood pressure, , is 1.744 <
< 2.816
Step-by-step explanation:
The parameters given are;
The number of people in the sample, n = 9
The average drop in blood pressure, = 2.28 points
The standard deviation, σ = 0.82
The confidence level = 95%
The formula for confidence interval with a known mean is given as follows;
Where:
= z - score at 95% confidence level = 1.96
We therefore have;
Which gives the 95% confidence interval for the mean change in pressure, , is given as follows;
1.744 < < 2.816