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seraphim [82]
3 years ago
13

The set of life spans of an appliance is normally distributed with a mean mc013-1.jpg = 48 months and a standard deviation mc013

-2.jpg = 8 months. What is the life span of an appliance that has a z-score of –3?
Mathematics
2 answers:
elena55 [62]3 years ago
7 0
The life span would be 24 months.

The formula for z-scores is:
z=\frac{X-\mu}{\sigma}

Using the information we're given we have:
-3=\frac{X-48}{8}

Multiply both sides by 8 to cancel it:
-3(8) = ((X-48)/8)*8
-24 = X-48

Add 48 to both sides:
-24+48 = X-48+48
24=X
MA_775_DIABLO [31]3 years ago
5 0
The answer would be B. 24 as the guy ^ said.
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Write and solve an inequality for the following sentence: Jan has saved $50 in her saving account and needs to save at least $26
Juliette [100K]

50 + x ≥ 268

X ≥ 218

STEP BY STEP WORK

50 + x ≥268
-50 -50

x ≥218

Jan needs to save at least $218 for camp


Hope I helped :)
8 0
3 years ago
There are 752 cal in 8 ounces of a certain ice cream how many calories are there in 2 pounds
Irina18 [472]
So, 8 ounces is equivalent to .5 pounds. Therefore, 32 ounces is equivalent to 2 pounds. Or, there are 4 8ounce measurements to get to 2 pounds.

752 calories * 4 = 3008 calories in 2 pounds of ice cream.
4 0
2 years ago
The expression below is scientific notation for what number?<br> 6.1 x 10^6
arlik [135]

Scientific notation is a way to write compactly numbers with lots of digits, either because they're very large (like 2393490000000000000000000), or very small (like 0.0000000000356).

We use powers of ten to describe all those leading/trailing zeros, so that we con concentrate on the significat digits alone.

In your case, the "important" part of the number is composed by the digits 6 and 1, all the other digits are zero. But how many zeroes? Well, let's do the computation.

Every power of 10, 10^n is written as one zero followed by n zeroes, so we have

10^6 = 1000000 \implies 6.1 \times 10^6 =6.1 \times 1000000

Multiplying a number by 10^n means to shift the decimal point to the right and/or add trailing zeroes n times. So, we have to repeat this process six times. We shift the decimal point to the right one position, and then add the five remaning zeroes. The result is thus

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4 0
3 years ago
Vanessa and Zack are playing a game where the player with the lower score wins.
dezoksy [38]
What is the question
3 0
3 years ago
Read 2 more answers
Candice and christ run a relay race at recess. Candice runs 1/2 of a lap around the track. Chris runs 1/3 of a lap around the tr
eduard

Answer:

Candice ran 1/6 of a lap further than Chris.

Step-by-step explanation:

we know that

To find out how much further Candice runs than Chris, subtract the distance Chris runs from the distance Candice runs

so

\frac{1}{2}-\frac{1}{3}=\frac{3-2}{6}=\frac{1}{6}\ lap

therefore

Candice ran 1/6 of a lap further than Chris.

5 0
3 years ago
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