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Liono4ka [1.6K]
3 years ago
13

Which answers are equal to the expression below? Check all that apply

Mathematics
1 answer:
MAVERICK [17]3 years ago
4 0

Answer:

A, B, D, E, F

Step-by-step explanation:

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-1+6x+x=-1 Help plz. solving one variable equations
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Add 6x and x to have 7x.
-1+6x+x=-1
7x-1=-1
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7x=0

Divide 7x by 7 so the x can be left alone.

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3 years ago
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The physical plant at the main campus of a large state university recieves daily requests to replace fluorescent lightbulbs. The
Bond [772]

Answer:

34% of lightbulb replacement requests numbering between 47 and 52

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 deviation of the mean.

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

In this problem, we have that:

Mean = 52

Standard deviation = 5

Between 47 and 52:

52 is the mean and 47 is one standard deviation below the mean.

By the Empirical Rule, 68% of the measures are within 1 standard deviation of the mean.

Since the normal distribution is symmetric, of those, 34% are within 1 standard deviation below the mean and the mean(47 and 52) and 34% are within the mean and one standard deviation above the mean(52 and 57).

So

34% of lightbulb replacement requests numbering between 47 and 52

3 0
2 years ago
Lcm of 2/5 and 5/18?
SSSSS [86.1K]

Answer:

10

Step-by-step explanation:

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3 years ago
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3:4 This is the answer
5 0
2 years ago
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Can someone help? using soh cah toa find length of OP round to the nearest tenth of a foot?
Marina CMI [18]

Answer:

95.5

Step-by-step explanation:

you can using toa

tan = opp/adj

tan 37° = 72/x

x = 72/ tan 37°

x = 95.547 feet

x = 95.5

6 0
2 years ago
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