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3 years ago

PLEASE HELP ME WITH THIS QUESTION.

Mathematics

2 answers:

Dimas [21]3 years ago

7 0

Answer:

it would be c!

Step-by-step explanation:

1.25 miles

i hope this helps

tatiyna3 years ago

7 0

Answer:

Hello

Your answer should be 1.25

1.25 would also be 5/4

Sorry If I was unable to help!

Step-by-step explanation:

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Evaluate: -13 + (-21) - (-18) + 10 - (-23)

MArishka [77]

$Solution, -13+\left(-21\right)-\left(-18\right)+10-\left(-23\right)=17$

$Steps:$

$-13+\left(-21\right)-\left(-18\right)+10-\left(-23\right)$

$\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations},\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:\:$

$\mathrm{Apply\:rule\:}+\left(-a\right)\:=\:-a,\\+\left(-21\right)=-21,\\-13-21-\left(-18\right)+10-\left(-23\right)$

$-13-21=-34,\\-34-\left(-18\right)+10-\left(-23\right)$

$\mathrm{Apply\:rule\:}-\left(-a\right)\:=\:+a,\\-\left(-18\right)=+18,\\-34+18+10-\left(-23\right)$

$-34+18=-16,\\-16+10-\left(-23\right)$

$-16+10=-6,\\-6-\left(-23\right)$

$\mathrm{Apply\:rule\:}-\left(-a\right)\:=\:+a,\\-\left(-23\right)=+23,\\-6+23$

$-6+23=17$

$The\:Correct\:Answer\:Is\:17$

$Hope\:This\:Helps$

$-Austint1414$

7 0

4 years ago

Assume that the readings on the thermometers are normally distributed with a mean of 0 degrees0° and standard deviation of 1.00d

Alex

Answer:

The diagram is attached below.

Step-by-step explanation:

A normal distribution mean 0 and standard deviation 1 is known as the standard normal distribution.

So, the readings on the thermometers (denoted by Z) follows N (0, 1).

It is provided that 2.7% of the thermometers are rejected because they have readings that are too high and 2.7% are rejected because they have readings that are too low.

This implies that:

$P(Zz)=0.027$

The value of z associated to both these probabilities are:

z = 1.93.

That is,

$P(Z1.93)=0.027$

*Use a z-table.

The diagram for the two readings that are cutoff values separating the rejected thermometers from the others is attached below.

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Answer: w=rt5 approx. 2.2

Step-by-step explanation:

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