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Karolina [17]
3 years ago
12

Please help me! I’ll mark you as the brainiest but please don’t answer if you don’t know it

Mathematics
2 answers:
Xelga [282]3 years ago
8 0

Answer:

x > 7

Step-by-step explanation:

If you look at the changes in degrees, you will see it get bigger on the bottom! That means the 7 will become smaller! Your Welcome!

baherus [9]3 years ago
7 0

Answer:

the answer is B bro

Step-by-step explanation:

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In circle Y, what is m∠1?<br><br> 6°<br> 25°<br> 31°<br> 37°
Korvikt [17]

9514 1404 393

Answer:

  (c)  31°

Step-by-step explanation:

Angles 1 and 2 are congruent. Each is half the sum of the subtended arcs:

  ∠1 = ∠2 = (37° +25°)/2 = 31°

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3 years ago
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Find the 76th term of the arithmetic sequence 16, 14, 12, ...
skelet666 [1.2K]

Answer:

-134

Step-by-step explanation:

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the diameter of one species of bacteria is shown. bonnie approximates this measure as 3 x 10^-11 meter. is she correct? explain.
stich3 [128]

Answer:

No

Step-by-step explanation:

No picture of the bacteria provided, but according to some text books its arround 0.2 - 2m in micrometer measurement, so 3 x 10^-11 is far more smaller than the range.

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3 years ago
Consider the following hypothesis test:
Gnom [1K]

Answer:

a. z=3.09. Yes, it can be concluded that the population mean is greater than 50.

b. z=1.24. No, it can not be concluded that the population mean is greater than 50.

c. z=2.22. Yes, it can be concluded that the population mean is greater than 50.

Step-by-step explanation:

We have a hypothesis test for the mean, with the hypothesis:

H_0: \mu\leq50\\\\H_a:\mu> 50

The sample size is n=55 and the population standard deviation is 6.

The significance level is 0.05.

We can calculate the standard error as:

\sigma_M=\dfrac{\sigma}{\sqrt{n}}=\dfrac{6}{\sqrt{55}}=0.809

For a significance level of 0.05, the critical value for z is zc=1.644. If the test statistic is bigger than 1.644, the null hypothesis is rejected.

a. If the sample mean is M=52.5, the test statistic is:

z=\dfrac{M-\mu}{\sigma_M}=\dfrac{52.5-50}{0.809}=\dfrac{2.5}{0.809}=3.09

The null hypothesis is rejected, as z>zc and falls in the rejection region.

b. If the sample mean is M=51, the test statistic is:

z=\dfrac{M-\mu}{\sigma_M}=\dfrac{51-50}{0.809}=\dfrac{1}{0.809}=1.24

The null hypothesis failed to be rejected, as z<zc and falls in the acceptance region.

c. If the sample mean is M=51.8, the test statistic is:

z=\dfrac{M-\mu}{\sigma_M}=\dfrac{51.8-50}{0.809}=\dfrac{1.8}{0.809}=2.22

The null hypothesis is rejected, as z>zc and falls in the rejection region.

8 0
3 years ago
What is the measure of the angle
lozanna [386]

Answer:

140 degree

Step-by-step explanation:

You go anticlockwise, starting from the 0.

8 0
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