3 years ago

Which one has a greater value, , -7 + (-7) or -7 - (-7)? Explain your answer. GIVING BRAINLIEST!!!

1 answer:

6 0

-7 -(-7) because it will equal zero and the other one will be -14

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Zinaida [17]

The answer to this question is D

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Arisa [49]

Answer:

hundreth, because it is the second digit after the decimal point.

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zimovet [89]

Answer:

Option D) $275

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $235

Standard Deviation, σ = $20

We are given that the distribution of amount of money spent by students is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.975

$P( X < x) = P( z < \displaystyle\frac{x - 235}{20})=0.975$

Calculation the value from standard normal z table, we have,

$P( z < 1.960) = 0.975$

$\displaystyle\frac{x - 235}{20} = 1.960\\x =274.2 \approx 275$

Approximately 97.5% of the students spent below $275 on textbook.

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rosijanka [135]

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y= 5x/2 The answer is C.

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Lelu [443]

We know from the slope intercept form that y=mx+b so the y intercept is 12 while every hour the cost goes up by 8

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