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vesna_86 [32]
3 years ago
8

Help me with these equations

Mathematics
1 answer:
jenyasd209 [6]3 years ago
4 0

Answer:

8. \frac{8r^{2} }{q^{2} }

10. 12x^{-1} y^{6} z

Step-by-step explanation:

8. \frac{16p^{6}qr^{8}  }{2(p^{2}qr^{2})^{3}  } = \frac{16p^{6}qr^{8}  }{2p^{6}q^{3}r^{6}  }= \frac{8r^{2} }{q^{2} }

10. 4x^{2} y . 3 (-2x^{4} y)^{0} . x^{-3} y^{5} z = 4x^{2}y . 3(1) . \\x^{-3} y^{5}z = \\12x^{-1}yx^{6}z

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In an all boys school, the heights of the student body are normally distributed with a mean of 71 inches and a standard deviatio
muminat

Answer:

15.87%

Step-by-step explanation:

First thing here is that we calculate the z-score which corresponds to 76

mathematically;

z-score = (x-mean)/SD

mean = 71 and SD = 5

plugging these values, we have;

z = (76-71)/5 = 5/5 = 1

Now, we want to firstly get the probability that we have a student shorter than 76 inches

The probability we want to calculate is P(z<1)

we can get this using the z-score table directly

That would be 0.15866

In percentage that is 15.866% which is 15.87% to the nearest tenth

7 0
3 years ago
Paper and Pencil Construction: Construct a Line Perpendicular to a Given Line through a Point on the Line
Zarrin [17]

Step-by-step explanation:

wait a person was about to report it sorry ;/

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5 0
3 years ago
What is 17 1/3 x 8 and how much water will each group get
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Answer:

The Answer to 17 1/3 x 8 is 138.67

There is not enough context to answer the second question.

8 0
3 years ago
There are two drama classesoffered at a middle school. The 8th grade class has 13 fewer students than the 7th grade class. If th
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Answer:

Class 8 has 27 and class 7 has 40

Step-by-step explanation:

8th (r) class has 13 fewer than 7th (x).
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4 0
2 years ago
Anyone help please....
MissTica

mean= 4.1

median= 1,2,3,4,5,6

mode= 6

Step-by-step explanation:

4 0
3 years ago
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