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icang [17]
3 years ago
11

HUH giving out brainiest

Mathematics
1 answer:
lisov135 [29]3 years ago
4 0

Answer: 3/4

Step-by-step explanation:

16/12=4/3

4/3=1/n >>>> 3=4n >>>>  3/4 = n

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Pulse rates of women are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per mi
irakobra [83]

Answer:

a) Mean=0 and Standard deviation=1

b) The z-scores have no units of measurement

Step-by-step explanation:

When we convert all the pulse rates of women to z-scores using the formula;

z=\frac{x-\mu}{\sigma} the mean is 0 and the standard deviation is 1.

The reason is that, the resulting distribution of z-scores forms a normal distribution which has a mean of 0 and a standard deviation of 1.

b) The z-scores are standardize scores and has no units of measurement. They give us how many standard deviations below or above the mean of the corresponding values.

8 0
3 years ago
What is the area? (IXL)
Zina [86]

Answer:

45 square meters

Step-by-step explanation:

we know that

The area of trapezoid is equal to

A=\frac{1}{2}(b1+b2)h

where

b1 and b2 are the parallel bases

h is the height of trapezoid (perpendicular distance between the parallel bases)

we have

b1=6\ m\\b2=9\ m\\h=6\ m

substitute

A=\frac{1}{2}(6+9)6

A=45\ m^2

3 0
3 years ago
mr. morris has a class of 14 students. he can spend $24 on each student to buy math supplies for the year. he first buys all the
Natali [406]
Hello!

First of all let's divide and find how much each calculator cost.

95.2/14=$6.80

Now we will subtract from 24.

24-6.8= 17.2

Mr. Morris has $17.2 left to spend on each student.

I hope this helps!
4 0
3 years ago
Read 2 more answers
The butter distributor charges $4.50 per pound, but there is a handling fee of $8.50 per order. Free shipping for orders between
kykrilka [37]

Answer:

14.00

Step-by-step explanation:

add

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4 0
2 years ago
Is 3b-9 a algebraic expression​
Slav-nsk [51]

Answer:

yes

Step-by-step explanation:

8 0
3 years ago
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