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Delvig [45]
3 years ago
9

Please answer correctly! I will mark you as Brainliest!

Mathematics
2 answers:
otez555 [7]3 years ago
8 0

Answer:

56.5 in

Step-by-step explanation:

Gnom [1K]3 years ago
4 0

Answer:

56.5 in³

Step-by-step explanation:

<u><em>I wrote out the work in the file below:</em></u>

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124664347874x558877223788889
Damm [24]
<span><span>(124664347874) times </span><span>(558877223788889)</span></span><span>=<span><span>6.96720646453*10^</span><span>25 </span></span></span>
4 0
3 years ago
What is 620,000 rounded to the nearest ten thousand
Sedaia [141]
620,000 rounded to the nearest thousand is:

620,000 because 2 is less than 5

Hope I Helped You!!!
5 0
2 years ago
Read 2 more answers
What is the difference in basicity between drain cleaner (pH 13) and ammonia (pH 11.9)?
gogolik [260]

Answer:

#chemical drain cleaners, plungers, handheld, drain augers, air burst cleaners, and home remedy drain cleaners are typically applied to the problem of a clogged then electric drain cleaners sewers jetters or such mechanical devices are usually required

and Ammonia is a colorless highly irritating gas with a sharp suffocating odor. It dissolves easily in water to form ammonium hydroxide solution which can cause irritation and burns. Ammonia gas is easily compressed and forms a clear, colorless liquid under pressure.

5 0
2 years ago
The time needed to complete a final examination in a particular college course is normally distributed with a mean of 77 minutes
Komok [63]

Answer:

a. The probability of completing the exam in one hour or less is 0.0783

b. The probability that student will complete the exam in more than 60 minutes but less than 75 minutes is 0.3555

c. The number of students will be unable to complete the exam in the allotted time is 8

Step-by-step explanation:

a. According to the given we have the following:

The time for completing the final exam in a particular college is distributed normally with mean (μ) is 77 minutes and standard deviation (σ) is 12 minutes

Hence, For X = 60, the Z- scores is obtained as follows:

Z=  X−μ /σ

Z=60−77 /12

Z=−1.4167

Using the standard normal table, the probability P(Z≤−1.4167) is approximately 0.0783.

P(Z≤−1.4167)=0.0783

Therefore, The probability of completing the exam in one hour or less is 0.0783.

b. In this case For X = 75, the Z- scores is obtained as follows:

Z=  X−μ /σ

Z=75−77 /12

Z=−0.1667

Using the standard normal table, the probability P(Z≤−0.1667) is approximately 0.4338.

Therefore, The probability that student will complete the exam in more than 60 minutes but less than 75 minutes is obtained as follows:

P(60<X<75)=P(Z≤−0.1667)−P(Z≤−1.4167)

=0.4338−0.0783

=0.3555

​

Therefore, The probability that student will complete the exam in more than 60 minutes but less than 75 minutes is 0.3555

c. In order to compute  how many students you expect will be unable to complete the exam in the allotted time we have to first compute the Z−score of the critical value (X=90) as follows:

Z=  X−μ /σ

Z=90−77 /12

Z​=1.0833

UsING the standard normal table, the probability P(Z≤1.0833) is approximately 0.8599.

Therefore P(Z>1.0833)=1−P(Z≤1.0833)

=1−0.8599

=0.1401

​

Therefore, The number of students will be unable to complete the exam in the allotted time is= 60×0.1401=8.406

The number of students will be unable to complete the exam in the allotted time is 8

6 0
3 years ago
If I have the full price of an item, &amp; the discounted price of the same item, how do I find the discount percentage?
melamori03 [73]

Answer:

Subtract the discount price from the full price. Divide the amount of change by the original price.

Step-by-step explanation:

Example: Original price = $40 Sale price = $30

$40-$30= 10

10/40= 1/4

1/4 = .25 or 25%

5 0
3 years ago
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