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3 years ago

А E с D В If mZACD = 100°, then mZECB = [?]°

Mathematics

1 answer:

11111nata11111 [884]3 years ago

4 0

Answer:

100

Step-by-step explanation:

they are vertical angles therefore, they have the same measure.

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Dividing integers.word problems.

Alex787 [66]

Answer:

Step-by-step explanation:

Sign. We will get a positive number. So a positive divided by positive is positive and a negative divided by a negative is also positive. Now if the two numbers have different signs.

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3 years ago

What is the relationship between APB and minor arc AB?

Dmitry [639]

Answer:

Step-by-step explanation:

If APB is measured in radians, then the arc length AB = APB(r) where r is the radius of the circle.

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3 years ago

Adult entrance fees to amusement parks in the United States are normally distributed with a population standard deviation of 2.5

kondor19780726 [428]

Answer: 1.509

Step-by-step explanation:

The formula of Margin of Error for (n<30):-

$E=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n= 22

Level of confidence = 0.99

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

Using the t-distribution table ,

Critical value : $t_{n-1, \alpha/2}=t_{21,0.005}= 2.831$

Standard deviation: $\sigma=\text{ 2.5 dollars }$

Then, we have

$E=( 2.831)\dfrac{2.5}{\sqrt{22}}\approx1.509$

Hence, the margin of error for a 99% confidence interval for the population mean =1.509

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3 years ago

The center of a circle is at the origin. An endpoint of a diameter of the circle is at (-3, -4). How long is the diameter of the

ASHA 777 [7]

Distance from origin x 2

$\sqrt{(0--4)^2+(0--3)^2}=5$

5 x 2 = 10

Diameter = 10

8 0

3 years ago

WHats 100000000000000 x 1000000000000000000000

ser-zykov [4K]

Answer:

1e+35

Step-by-step explanation:

7 0

3 years ago