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2 years ago

What is the value of x? Image included

Mathematics

2 answers:

xeze [42]2 years ago

5 0

Answer:

Step-by-step explanation:

Since you have 56 degrees, the other side of the triangle should also be 56 degrees. So, you add 56 to 56. That should be 112.

Then, you subtract 180 to 112, since the triangle has 180 degrees total.

Final answer: 68

Dominik [7]2 years ago

4 0

Answer:

68 degrees

Step-by-step explanation:

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What is an irrational and irrational number?

Rama09 [41]

Answer:

An irrational number is a real number that can't be written as a fraction.

Ex. $\sqrt{5}$

A rational number is a real number such as a whole number, fraaction, decimal, or integer.

8 0

2 years ago

Jason has 65 t-shirts and wants to give away 15% of them to help make room in his closet.

DiKsa [7]

Answer:

Step-by-step explanation:

i'm not really sure but i'm sure it's accurate

5 0

2 years ago

Read 2 more answers

Can someone help me pls

Vladimir79 [104]

Answer:

10) area of 130° segment 4.5 in²

Step-by-step explanation:

10) area of full circle = πr² = (3.14)(2²) = 12.56 in²

area of 130° segment = (130/360)(12.56) = 4.54 in²

5 0

2 years ago

Find the endpoint P of a line segment whose midpoint Q lies at (5, -10) and whose other endpoint lies at (-8, -4). Write it as a

blondinia [14]

P is (18, -16)

to find the answer, u would solve it in reverse order of the midpoint formula by first doing the x-values:

5(2)= 10-(-8) = 18

and then the same to y-values:

-10(2)= (-20)-(-4) = -16

to get:

(18, -16)

8 0

2 years ago

A class survey in a large class for first-year college students asked, “About how many minutes do you study on a typical weeknig

Anika [276]

Answer: (110.22, 125.78)

Step-by-step explanation:

The confidence interval for the population mean is given by :-

$\mu\ \pm z_{\alpha/2}\times\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size = 463

$\mu=118\text{ minutes}$

$\sigma=65\text{ minutes}$

Significance level : $\alpha=1-0.99=0.01$

Critical value : $z_{\alpha/2}=z_{0.005}=\pm2.576$

We assume that the population is normally distributed.

Now, the 90% confidence interval for the population mean will be :-

$118\ \pm\ 2.576\times\dfrac{65}{\sqrt{463}} \\\\\approx118\pm7.78=(118-7.78\ ,\ 118+7.78)=(110.22,\ 125.78)$

Hence, 99% confidence interval for the mean study time of all first-year students = (110.22, 125.78)

3 0

2 years ago