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Ray Of Light [21]
2 years ago
12

Which expression is equivalent to the expression shown? (5^4)2

Mathematics
1 answer:
marshall27 [118]2 years ago
7 0

Answer:

5^8

Step-by-step explanation:

You multiply the exponents!!

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Please help check if this is correct?
Likurg_2 [28]

Answer:

50 is correct

Step-by-step explanation:

did my math but I know you need it quick so sorry for brief answer

4 0
3 years ago
A tram moved upward 9 meters per second for 36 seconds. What was the total change in the tram's elevation?
anyanavicka [17]

Answer:

324 meters.

Step-by-step explanation:

9*36 :)

8 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
Randy hung a total of 900 feet of Christmas lights on the exterior of his house this past holiday season. If 1 foot equals 30.48
bulgar [2K]

Answer:

900 divided by 30.48 =

Step-by-step explanation:

<u> 0 0. 0 3 3</u>

9 0 0 3 0. 4 8 0

   − 0        

     3 0      

<u>    −   0   </u>  

     3 0 4    

<u>    −     0 </u>  

     3 0 4 8  

<u>    − 2 7 0 0 </u>

       3 4 8 0

     − <u>2 7 0 0</u>

         7 8 0

Your answer is now many

Branlist plz

5 0
3 years ago
Read 2 more answers
3.9 times 10 to the 20 power
Jobisdone [24]
3.9*10 = 39 then that to the 20 power is 6.626621133E31


Hope this helps!
5 0
2 years ago
Read 2 more answers
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