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3 years ago

What line intersect to make a right angle

1 answer:

3 0

2 lines intersect at one point and stop there to form an L shaped angle they also form a square when you combine another right angle and they measure 90 degrees. Hope this helps!

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PLEASE HELP!! WILL MARK BRAINLIEST!!!

Rus_ich [418]

Answer:

that looks tuff my boy good luck

Step-by-step explanation:

7 0

3 years ago

A simple random sample of size nequals40 is drawn from a population. The sample mean is found to be 103.9, and the sample stand

yan [13]

Answer:

There is enough evidence to support the claim that the population mean is greater than 100

Step-by-step explanation:

Step 1: We state the hypothesis and identify the claim

$H_0:\mu=100$ and $H_1:\mu \:>\:100$ (claim)

Step 2: Calculate the test value.

$t=\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$

$\implies t=\frac{103.9-100}{\frac{21.9}{\sqrt{40} } }=1.1263$

Step 3: Find the P-value. The p-value obtained from a calculator is using d.f=39 and test-value 1.126 is 0.134

Step 4: We fail to reject the null hypothesis since P-value is greater that the alpha level. (0.134>0.05).

Step 5: There is enough evidence to support the claim that the population mean is greater than 100.

Alternatively: We could also calculate the critical value to obtain +1.685 for $\alpha=0.05$ and d.f=39 and compare to the test-value:

The critical value (1.685>1.126) falls in the non-rejection region. See attachment.

NB: The t- distribution must be used because the population standard deviation is not known.

5 0

4 years ago

Nine and twenty hundredths as a decimal

Novosadov [1.4K]

Answer:

0.920

I think this is right

8 0

3 years ago

Can someone help me with this please

Tomtit [17]

Answer:

x<-4

Step-by-step explanation:

First you have to add 4 by both sides, which will give you 8x<-32.

Then just divide both sides by 8 and you should get the same answer.

5 0

3 years ago

Read 2 more answers

What is the exact volume of the cylinder. B= 6 in. H=6 in.

algol [13]

Answer:

Exact volume is 216π in^3.

Step-by-step explanation:

If B is the radius of the base of the cylinder then the volume is:

V = πr^2h

= π * 6^2 * 6

= π*36*6

= 216π in^3.

8 0

3 years ago

Read 2 more answers