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svetlana [45]
3 years ago
10

Plz answer both questions 15 points

Mathematics
1 answer:
Llana [10]3 years ago
3 0

When multiplying & dividing rational numbers:

If your signs are the same, your answer is positive.

If your signs are different, your answer is negative.

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John left a $2 tip for the server when stopped at a diner. If this was 20% of his order total, how much was his order?
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Please help me. The question is in the image.
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10=x

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Intersecting Chords Formula:(segment piece) x (segment piece) =

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A sample of 16 items from population 1 has a sample variance 5.8 and a sample of 21 items from population 2 has a sample varianc
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Answer:

Reject the null hypothesis.

Step-by-step explanation:

n1 = 16

n2 = 21

S.V1 = 5.8

S.V2 = 2.4

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H_{a} = Population Variance 1 >  Population Variance 2

Test statistic value = 5.8 / 2.4 = 2.417

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15 and 20

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3 years ago
How do you tell if it's possible to make a triangle out of these side lengths?<br> PLZ HELP!!!!!
Nastasia [14]

Answer:

A

Step-by-step explanation:

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square root of 7 is about 2.6. multiply by 5, you get 13.

when determining if you can make a triangle, if all variants of two sides can add up to be greater than the third side, you can make the triangle. so 8.5+9 > 13; 13+9 > 8.5; 13+8.5 > 9. this means it can make a triangle and all you have to do is order the sides.

8.5 is smallest which corresponds to angle c because it's opposite. 9 goes to angle a, then finally 13 goes to angle b. thus, angles c, a, b is the order.

side note: the smallest side length will always correspond with the smallest angle.

hope this helps :)

3 0
3 years ago
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