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pantera1 [17]
3 years ago
5

I need help on this question

Mathematics
1 answer:
Ainat [17]3 years ago
3 0
Answer choice 3 is correct
The answer is 3x+18=147°, because a central angle is equal to the amount of degrees of its arc.
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A teacher wants to see if a new unit on taking square roots is helping students learn. She has five randomly selected students t
Dima020 [189]

Answer:

The P-value for this test is P=0.00006.

Step-by-step explanation:

We have a matched-pair test, with a test statistic t=-14.9.

The degrees of freedom in a sample of 5 students is:

df=n-1=5-1=4

For a  t=-14.9 and 4 degrees of freedom, a left-tail test will have a P-value of:

P-value=P(t_4

The claim is that the new unit on taking square roots is helping students to learn. This test concludes that there is statistical evidence to support the claim that the new unit is helping students to learn.

6 0
3 years ago
Read 2 more answers
Find the value of x in the triangle show below​
STatiana [176]
The square root of 12
4 0
2 years ago
A sweater is on sale for 30% off the ticketed price of $84. How much will the sweater cost after the discount?
Marianna [84]
84 x .70 = $58.80

Or if you want to do it the long way you can calculate the actual discount (your savings from this purchase first then subtract it from the original price of $84. It`s just easier to figure out what is left (which is 70% of $84).
3 0
3 years ago
In two or more complete sentences, describe the steps necessary in completing the following sum. In your final answer, include t
tiny-mole [99]

Answer:

First, you would need to find a common denominator for the two, in this case it would be 6 which would make the equation 3/6 + 4/6=7/6. Then in order to make the answer a mixed number you would need to divide the numerator into the demonanator,  write down the whole number answer (6 will go into 7 ONE time) then write down the "leftovers". The final answer would be 1 1/6

(i hope this helps! im not the best at explaining)

6 0
3 years ago
Which expressions are equivalent to -f-5(2f-3)
gizmo_the_mogwai [7]

Answer:

-11f +15

Step-by-step explanation:

-f-5(2f-3)

Distribute

-f -10f +15

Combine like terms

-11f +15

3 0
3 years ago
Read 2 more answers
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