All categories

1 year ago

Help Find the measure of angle x. Skip 142° O X = [?] X Enter

Mathematics

1 answer:

Gre4nikov [31]1 year ago

6 0

38 degrees.
EXPLANATION

There are 2 angles.

The angles must add up to 180.

So taking 180 and subtracting the already known angle, of 142.

Will get us with 38.

We can check the work by doing 38 + 142.

Hope this helps! have a gud day

You might be interested in

Surface area of prisms

Lena [83]

12x12=144. Answer is 144 miles

7 0

3 years ago

Read 2 more answers

Car A travels 115 miles on 5 gallons of gas. Car B 126 miles on 6 gallons of gas. How can you find which car gets better gas mil

igomit [66]

5 gallons of gas is better than thanks

6 0

2 years ago

How do i completely factor 9c^4-36c^2?

VLD [36.1K]

You take out the biggest factor of 9 and 36 which is 9c^2. The factors both have the c variable in common so you take the least exponent and put it with the gcf.

9c^2(c^2+4)

8 0

2 years ago

Read 2 more answers

A survey of 85 families showed that 36 owned at least one DVD player. Find the 99% confidence interval estimate of the true prop

Katyanochek1 [597]

Answer: $(0.367,\ 0.473)$

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

, where $\hat{p}$ is the sample proportion, n is the sample size , $z_{\alpha/2}$ is the critical z-value.

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

Sample size : n= 85

Critical value : $z_{\alpha/2}=2.576$

Sample proportion: $\hat{p}=\dfrac{36}{85}\approx0.42$

Now, the 99% confidence level will be :

$\hat{p}\pmz_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.42\pm(2.576)\sqrt{\dfrac{0.42(1-0.42)}{85}}\\\\\approx0.42\pm0.053\\\\=(0.42-0.053,\ 0.42+0.053)=(0.367,\ 0.473)$

Hence, the 99% confidence interval estimate of the true proportion of families who own at least one DVD player is $(0.367,\ 0.473)$

3 0

2 years ago

Find the smallest positive integer that is greater than $1$ and relatively prime to the product of the first 20 positive integer

ValentinkaMS [17]

Answer:

Step-by-step explanation:

since the number is relatively prime to the product of the first 20 positive numbers

It number must not have factor of (1-20)

Therefore the smallest possible number is the next prime after 20

Answer is 23

7 0

2 years ago