All categories

3 years ago

Find the missing side. Round to the nearest tenth. Please help and show work I appreciate it

Mathematics

1 answer:

KengaRu [80]3 years ago

4 0

Answer:10.6

Step-by-step explanation:

Φ=45°

Hypotenuse=15

Opposite=x

SinΦ=opposite ➗ hypotenuse

Sin45=x/15

0.7071=x/15

Cross multiply

x=15 x 0.7071

x=10.6

You might be interested in

Solve for x please help (show ur work)

Zanzabum

Answer:

x = -3

Step-by-step explanation:

12 -4x-5x = 39

Combine like terms

12 - 9x = 39

Subtract 12 from each side

12-9x-12 = 39-12

-9x = 27

Divide by -9

-9x/-9 = 27/-9

x = -3

3 0

2 years ago

Read 2 more answers

Plz help no guessing

kumpel [21]

B i got u u got any more i can help you

7 0

2 years ago

Read 2 more answers

Find the mean of first five natural numbers also find the range of the numbers

ahrayia [7]

Show The pictures please Thank you My friend

4 0

2 years ago

The water works commission needs to know the mean household usage of water by the residents of a small town in gallons per day.

valina [46]

Answer:

A sample of 179 is needed.

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:

$\alpha = \frac{1 - 0.85}{2} = 0.075$

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

That is z with a pvalue of $1 - 0.075 = 0.925$ , so Z = 1.44.

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.

A previous study found that for an average family the variance is 1.69 gallon?

This means that $\sigma = \sqrt{1.69} = 1.3$

If they are using a 85% level of confidence, how large of a sample is required to estimate the mean usage of water?

A sample of n is needed, and n is found for M = 0.14. So

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

$0.14 = 1.44\frac{1.3}{\sqrt{n}}$

$0.14\sqrt{n} = 1.44*1.3$

$\sqrt{n} = \frac{1.44*1.3}{0.14}$

$(\sqrt{n})^2 = (\frac{1.44*1.3}{0.14})^2$

$n = 178.8$

Rounding up

A sample of 179 is needed.

7 0

2 years ago

QUESTION 1 Name the type of transformation depicted by the picture. reflection rotation translation none of the above

nydimaria [60]

I would be happy to help but it seems there are no pictures attached to answer from.

7 0

2 years ago