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REY [17]
3 years ago
11

Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made. (5 points)

Mathematics
2 answers:
liberstina [14]3 years ago
8 0
She should have added 25 instead of subtracted 25...step 1 error
NemiM [27]3 years ago
7 0
If you would like to solve the equation -5x - 25 = 78, you should do this using the following steps:

<span>-5x - 25 = 78
</span>-5x - 25 + 25 = 78 + 25
-5x + 0 = 103
-5x = 103 /(-5)
x = 103 / (-5)
x = - 103/5 = - 20.6

The error was already made at step 1.
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2 years ago
Before every​ flight, the pilot must verify that the total weight of the load is less than the maximum allowable load for the ai
ss7ja [257]

Answer:

The probability that the plane is oveloaded is P=0.9983.

The pilot should take out the baggage and send it in another plain or have less passengers in the plain to not overload.

Step-by-step explanation:

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So the mean of the sample is 180.5 lb (equal to the population mean).

The standard deviation is:

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Then, we can calculate the z value for x=163 lb.

z=\frac{x-\mu}{\sigma}=\frac{163-180.5}{5.97}=\frac{-17.5}{5.97}=   -2.93

The probability that the mean weight of the men in the airplane is below 163 lb is P=0.0017

P(\bar X

Then the probability that the plane is oveloaded is P=0.9983:

P(overloaded)=1-P(X

The pilot should take out the baggage or have less passengers in the plain to not overload.

7 0
3 years ago
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Answer:

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Step-by-step explanation:

if h(x)=4 .. that would mean to plug 4 in as x

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4 0
3 years ago
Read 2 more answers
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dusya [7]
X=4
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hope this helps u out :)
3 0
3 years ago
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