A ladder leaning against a building makes an angle of 78 degrees with the ground. The foot of the ladder is 5 feet from the buil
1 answer:
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Answer:
Your answer will be
y=2x-15.5
Step-by-step explanation:
Hi, there you must know the slope-intercept form which is
y=mx+b
m=slope
b=y-intercept
You can also use
the slope formula which is
in this case
it will look like this
=
=-2
So the slope is -2
Now we will find the y-intercept
-7.5=2(4)+b
-7.5=8+b Subtract 8 both sides
-15.5=b
Your y-intercept is -15.5
Hope this helps
Answer:
True
Step-by-step explanation:
The margin of error of a confidence interval is given by:
In which z is the critical value related to the confidence level, is the standard deviation of the population and n is the size of the sample.
So as n increases, the margin of error decreases, that is, the interval gets narrower.
The students could produce a narrower confidence interval by increasing the sample size to 100.
From the explanation above, the answer is true.