Ask question

Ask question

All categories

2 years ago

13

And engineer in blueprint calls for a 10.5 foot clearance from some pipes to the wall the pipes are currently 8.25 feet from the

wall how many feet will the pipes need to be moved

1 answer:

tatuchka [14]2 years ago

7 0

Answer:222

Step-by-step explanation:

add it

You might be interested in

In the data set below, what is the median

evablogger [386]

It’s 6
since it’s right at 5 & 7

8 0

2 years ago

The ratio for 42 pens : 35 pencils as a fraction is

Alex73 [517]

As a fraction,
35/42, simplified, 5/6
answer=5/6
hope this helps....

4 0

2 years ago

Read 2 more answers

Which is the slope of the line that passes through the points (3,17) and (7,25)? a slope = 1/2 b slope = 2 c slope = −2 d slope

Ierofanga [76]

Slope is y2-y1/x2-x1
so, 25-17/7-3
8/4=2
The answer should be b

5 0

2 years ago

A manufacturer of college textbooks is interested in estimating the strength of the bindings produced by a particular binding ma

IrinaVladis [17]

Answer:

538 books should be tested.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.99}{2} = 0.005$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.005 = 0.995$ , so $z = 2.575$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

How many books should be tested to estimate the average force required to break the binding to within 0.08 lb with 99% confidence?

n books should be tested.

n is found when $M = 0.08$

We have that $\sigma = 0.72$

$M = z*\frac{\sigma}{\sqrt{n}}$

$0.08 = 2.575*\frac{0.72}{\sqrt{n}}$

$0.08\sqrt{n} = 2.575*0.72$

$\sqrt{n} = \frac{2.575*0.72}{0.08}$

$(\sqrt{n})^{2} = (\frac{2.575*0.72}{0.08})^{2}$

$n = 537.1$

Rounding up

538 books should be tested.

6 0

2 years ago

What is $8.75 with a 5.25% sales tax

nadezda [96]

8.75 with 5.25 sales tax is 0.46 I think

8 0

3 years ago