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pav-90 [236]
3 years ago
14

Bert has already read 5 pages, and he knows he can read 11 more pages during every additional hour he spends reading. In all, ho

w many hours of reading will Bert have to do this week in order to have read a total of 49 pages?​
Mathematics
2 answers:
lukranit [14]3 years ago
7 0

Answer:

4 hours

Step-by-step explanation:

11 x 4 equals 44 plus he read 5 pages so its 49

ICE Princess25 [194]3 years ago
5 0

Answer:

4 hours

Step-by-step explanation:

<h2>11 times 4 =44 and than that will be the answer</h2>
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For a medical study, a researcher wishes to select people in the middle 60% of the population based on blood pressure.
Finger [1]

Answer:

Lower limit: 113.28

Upper limit: 126.72

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 120, \sigma = 8

Middle 60%

So it goes from X when Z has a pvalue of 0.5 - 0.6/2 = 0.2 to X when Z has a pvalue of 0.5 + 0.6/2 = 0.8

Lower limit

X when Z has a pvalue of 0.20. So X when Z = -0.84

Z = \frac{X - \mu}{\sigma}

-0.84 = \frac{X - 120}{8}

X - 120 = -0.84*8

X = 113.28

Upper limit

X when Z has a pvalue of 0.80. So X when Z = 0.84

Z = \frac{X - \mu}{\sigma}

0.84 = \frac{X - 120}{8}

X - 120 = 0.84*8

X = 126.72

4 0
3 years ago
Which relationship describes angles 1 and 2?
umka2103 [35]
I belive its B,and D,
B because, the lines are supplementary(because supplementary means it equal 180 degrees in length, which is those two angles.)
D, because they are put in such an angle in which making them adjecant.
Hope I helped:-) Bye bye.
8 0
2 years ago
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A number greater than 1000 whose prime factorization contains 1 prime number that does not repeat,1 prime number that repeats 3
olasank [31]
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8 0
3 years ago
Find the volume of the prism.​
Gemiola [76]

Answer:

Step-by-step explanation:

The volume of the triangular prism, this is an isosceles triangular prism is

V=1/2 * a*b*h

V=1/2 x10x8x14=560 cm^3

4 0
2 years ago
Convert 490 square meters to square dekameters<br> please show work, if you can't thats okay
Savatey [412]
The answer will be 4.9. =) 

Since we know 1 metre is 0.01 dekametres, we can use this to answer the question!

We simply multiply 490 by 0.01. =)
5 0
2 years ago
Read 2 more answers
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