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Alinara [238K]
3 years ago
13

Which of the following tables represents a quadratic function ? Explain how you know .

Mathematics
1 answer:
Aliun [14]3 years ago
4 0
B, the first differences are not the same , that proves it is not linear. The second set of differences are the same this shows it is a quadratic function.

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If Eli showed a 8.9% ROI on his $8000.00 investment, how much was his return on his investment
telo118 [61]
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6 0
3 years ago
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The average systolic blood pressure was found to be 140 mm for people who have high responsibility jobs, specifically investment
9966 [12]

Answer:

Option B)

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

The doctors and u=instructor claims that practicing yoga reduces blood pressure and hence is beneficial to people.

Population mean, μ =  140 mm

Sample mean, \bar{x} =  139 mm

Sample size, n = 51

Sample standard deviation, s = 5 mm

Thus, we can design the null hypothesis and alternate hypothesis as

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

The null hypothesis states that the population have a blood pressure of 140 mm. The alternate hypothesis states that yoga reduces the blood pressure and the sample has a blood pressure less than 140 mm.

Thus, the correct answer is

Option B)

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

3 0
3 years ago
An 5 in. by 7 in. photo is reduced so that the width (the shorter dimension) is 4 in.
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If it took 0.05 seconds for the number of wavelengths in the graphic to pass a certain point, what is the frequency of this wave
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Solve -5 square root x =15
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Answer:

x = 9.

Step-by-step explanation:

-5 square root x =15

divide both sides by -5:

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Squaring both sides:

x = 9.

3 0
4 years ago
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