3 years ago

4(x + 10) < 20 What is the answer

Mathematics

1 answer:

lukranit [14]3 years ago

6 0

Answer:

x < -5

Step-by-step explanation:

Distribute 4 to x and 10: 4x + 40 < 20

Subtract 40 from both sides: 4x < -20

Divide by 4: x < -5

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Step-by-step explanation:

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3 years ago

7. A number of minor automobile accidents occur at various high-risk intersections in Teton County despite traffic lights. The T

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Answer:

Modification has not reduced the number of accidents.

Step-by-step explanation:

$H_0: \mu\geq0\\H_a:\mu$

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Before modification 5 7 6 4 8 9 8 10

After modification 3 7 7 0 4 6 8 2

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$t critical = t_{(df, \alpha)}=t_{7,0.01}=2.998$

t critical> t calculated

So, We failed to reject null hypothesis

Hence modification has not reduced the number of accidents.

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3 years ago

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Taylor=T Staci=S
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Step-by-step explanation:

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Step-by-step explanation:

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