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dlinn [17]
3 years ago
10

What is this answer help pleaseeeeeeeeee

Mathematics
1 answer:
Nostrana [21]3 years ago
5 0

Answer: D =60

Step-by-step explanation:

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OleMash [197]

First to Answer

Answer:

The correct option is the third option. -2 1/4 / -2/3 = 3 3/8

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3 years ago
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Answer:

B. 6.000000 g

Step-by-step explanation:

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6 0
3 years ago
The mean hours of sleep that students get per night is 7 hours, the standard deviation of hours of sleep is 1.7 hours, and the d
densk [106]

Answer:

c. 3.6 and 10.4 hrs

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviations of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean 7, standard deviation 1.7.

For about 95% of students, nightly amount of sleep is between

7 - 2*1.7 = 7 - 3.4 = 3.6 hours

7 + 2*1.7 = 7 + 3.4 = 10.4 hours

So the correct answer is:

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5 0
3 years ago
Find the value of c such that y= x + c is a tangent to the parabola y = x squared - x - 12
Bond [772]

Answer:

c = –13

Step-by-step explanation:

by property of tangent line, equation

x² – x – 12 = x + c

x² – 2x – 12 – c = 0

has only one solution, which mean

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3 years ago
Rick took a 20-minute coffee break. at the end of the break, it was 10:00
gladu [14]
Rick started his coffee break at 9:40 am.
4 0
3 years ago
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