Ask question

Ask question

All categories

3 years ago

13

In an all boys school, the heights of the student body are normally distributed with a mean of 69 inches and a standard deviatio

n of 2.5 inches. Using the empirical rule, what percentage of the boys are between 61.5 and 76.5 inches tall?

1 answer:

Molodets [167]3 years ago

7 0

Step-by-step explanation:

plus of yhis number and solve it oksy

You might be interested in

dnw snow storm Francisco had 17 inches of snow on his lawn.the temperature then increased in the snow begin to melt at a consist

stich3 [128]

Answer:

Step-by-step explanation:

(equation: 17-2.5=2)

17-2.5=2

<u>-2.5 </u>

<u>17=2</u>

<u>17 divided by 2 </u>

<u>8.5 is the </u>

<u>he would have 8.5 inches of snow on his lawn.</u>

4 0

2 years ago

Find the 8th term of the sequence with formula tn= 7+2 (n-1)

stellarik [79]

Answer:

Your answer is 71

Step-by-step explanation:

7+2(n-1)

we have our n as 8

so,7+2(8-1)

9(7)=63

3 0

1 year ago

2. What is the value of 6x – 3y if x = 5 and y = 1

vesna_86 [32]

Step-by-step explanation:

x=5,y=-1

6(5)-3(-1)=30+3=33

answer G .33

4 0

3 years ago

You have 10 marbles in a bag: 3 blue, 2 green, 4 yellow, and 1 purple. If you close your eyes and choose a marble at random, wha

Naily [24]

Answer:

3/10

Step-by-step explanation:there are 10 marbles all together three blue ones

4 0

3 years ago

Read 2 more answers

Please solve! I will mark brainliest if correct!

a_sh-v [17]

Hello,

So we can first assign HD videos and classic videos to specific variables, x is HD videos and y is classic videos.

Fiona bought 5 HD videos, and 2 classic videos for 31 dollars.
5x + 2y = 31

Iliana bought 3 HD videos and 5 classic videos for 30 dollars.
3x + 5y = 30

Therefore, the final answer is choice D, 5x + 2y = 31 and 3x + 5y = 30.

8 0

3 years ago

Read 2 more answers