Mathematics College

The distribution of the heights of students in a large class is roughly Normal. Moreover, the mean height is 68 inches, and approximately 95% of the heights are between 62 and 74inches. Thus, the standard deviation of the height distribution is approximately equal to

Answers

Answer 1

Answer:

Probably equal to 6 or 7.

Step-by-step explanation:

Related Questions

Solve for y in the equation C = 5x² +y

Answers

Answer:

y=C-5x^2

Step-by-step explanation:

help! please look at the picture, the answer is needed quick the explanation doesn't matter. Thanks!

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Step-by-step explanation:

only the positive 49

hope this helps bro!!

Find the product of the
L.C.M and H.C.F of 8 and 12.

Answers

Answer:

96 is the answer.

Step-by-step explanation:

The L.C.M of 8 and 12 is 24The H.C.F of 8 and 12 is 4

We multiply 24 *4 we shall get 96 as the answer.

Answer:

24*4=96

Step-by-step explanation:

lcm of 8 and 12 is 24

hcf of 8 and 12 is 4

24 times 4 = 96

A submarine spots a speedboat on the
surface of the water at a 42° angle of
elevation. The sub and the boat are
separated by a straight line distance of
35 feet. How far beneath the surface is
the submarine traveling?

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Answer:

Ships A and B are 1,425 feet apart and detect a submarine below them. The angle of depression from ship A to the submarine is 59°, and the angle of depression from ship B to the submarine is 47°.

How far away is the submarine from the two ships? Round to the nearest hundredth of a foot.

The distance from ship A to the submarine is about

feet.

The distance from ship B to the submarine is about

feet.

Step-by-step explanation: answer this and ill answer yours.

if three distinct numbers have a sum of 10 and a product of 20, what is their median

Answers

Answer:

gfdsgfds

Step-by-step explanation:

fdgdsf

i givvvveeeee brainlilsttttttt

Answers

Answer:

thanks

Step-by-step explanation:

your welcome

Which expression has a value greater than 4^3?

Answers

Answer:

(-3)^4

Step-by-step explanation: We just have to evaluate

So, the only expression that exceeds 4^3 is (-3)^4:

Holiday dinners at June’s house are always a festive occasion. One particular holiday, June has 16 guests.

June offers the guests apple pie and blueberry pie. While any guest can have slices of both pies, June never serves a particlar guest more than one slice of each pie and each guest is allowed to decline any slice of pie they don’t care for.

June serves a total of 10 slices of apple pie and a total of 11 slices of blueberry pie.

June serves 8 guests slices of both pies.

How many guests had no pie at all?

a. 3

b.2

c.0

Answers

Answer:

a. 3

Step-by-step explanation:

We solve this question gathering the information given in the question.

June serves 8 guests slices of both pies.

This is soon going to be used

June serves a total of 10 slices of apple pie

This includes the 8 guests which got served both pieces. So 10 - 8 = 2 guests were served only apple pie.

11 slices of blueberry pie.

By the same logic as above, 11 - 8 = 3 guests were served only blueberry pie.

8 + 2 + 3 = 13 guests were served at least one pie.

16 - 13 = 3 guests had no pie at all.

Evaluate 42,147÷63. Round to the nearest whole number, if necessary.
Please help

Answers

Answer: 669

Step-by-step explanation:

Crop yield is the ratio of the number of bushels harvested to the number of acres used for the harvest. This year, the harvest at a farm was 94,010 bushels of grain, resulting in a crop yield of 170 bushels per acre.

To the nearest whole acre, how many acres were harvested?

453 acres

489 acres

509 acres

553 acres

Answers

Answer:

553 acres

Step-by-step explanation:

94010 ÷ 170 =553

Answer:

Step-by-step explanation:

Consider the expression 40+24 Find the greatest common factor of the two numbers and rewrite the expression using the distributive property

Answers

Answer:

Greatest Common Factor of 40+24 is 8

Rewriting the expression using the distributive property we get 8(5+3) =8(5)+8(3)

Step-by-step explanation:

We need to F=find the greatest common factor of the two numbers 40+24 and rewrite the expression using the distributive property

Greatest Common Factor:

The greatest number that is divisible by both numbers is known as greatest common factor.

So, Greatest Common Factor of 40+24 is 8

Now, Taking 8 common we get: 8(5+3)

Distributive property:

It is written as: a(b+c) = ab+ac

So, we have 8(5+3) =8(5)+8(3)

Rewriting the expression using the distributive property we get 8(5+3) =8(5)+8(3)

Whoever answers number 1 and 2 gets brainliest!! :)

Answers

Answer:

1: Yes they are both equivalent because 48/8 is 6 and 24/4 is 6.

2: They would score 750 points because you divide 150 by 3 and get 50, then you multiply 50 by 15 and get 750!

Step-by-step explanation:

brainlist the person above me

Given: B bisects EA, FE is parallel to CA, DC is parallel
to GF
Prove: Triangle BGF Triangle BDC
Which method?
E
SSS
SAS
AAS
С
OHL
וד
B
ASA
A
INTL 9:53

Answers

Answer:

Choice 3: AAS

Step-by-step explanation:

We can prove that by AAS that means we need two congruent angles and one congruent side.

The first angle will be the vertical pair <FBG and <DBC.

The second angle will be the alternate interior pair <G and <D.

The one side will be [tex]\overline{GB}[/tex] and [tex]\overline{BD}[/tex].

Cat behavior: A report stated that the average number of times a cat returns to it's good bowl during the day is 37. Assuming the variable is normally distributed with a standard deviation of 3, what is the probability that a cat would return to it's dish between 34 and 39 times a day. Use the graphing calculator. Round the answer to four decimal places.
P (34<X<39) =?

Answers

Answer:

P (34<X<39) = 0.5899

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

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

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

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 question, we have that:

[tex]\mu = 37, \sigma = 3[/tex]

What is the probability that a cat would return to it's dish between 34 and 39 times a day.

This is the pvalue of Z when X = 39 subtracted by the pvalue of Z when X = 34. So

X = 39

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{39 - 37}{3}[/tex]

[tex]Z = 0.67[/tex]

[tex]Z = 0.67[/tex] has a pvalue of 0.7486

X = 34

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{34 - 37}{3}[/tex]

[tex]Z = -1[/tex]

[tex]Z = -1[/tex] has a pvalue of 0.1587

0.7486 - 0.1587 = 0.5899

P (34<X<39) = 0.5899

Find the measure of the indicated angle to the nearest degree (whole number).
39
36
15

Answers

Answer:

I think 39

Step-by-step explanation:

I don’t know the answer to this question, I need help the question is in the picture!

Answers

Answer:

it is 112° .. as you will solve it like this (180-44=136) and each angle down there are equal so we will divide 136÷2 so each angle is 68° ,, finally to find x you can do it in two ways 1) (68+44) =112 or you can go with (180-68=112)

Find a. brainliest!!

Answers

Answer:

what are you trying to find.How many degrees to z or y

Step-by-step explanation:

You’re trying to figure out how many degrees to Z or Y

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Answers

Answer:

Y = 0 , X = - 3/2

Step-by-step explanation:

Answer:

just give the brainliest to him

Step-by-step explanation:

I WILL GIVE BRAINLIEST PLS I NEED HELP, The scale drawing of a field in the shape of a triangle is shown below.
What is the actual area, in square meters, of this field?

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Answer:

Step-by-step explanation:

What is the slope of a line that is perpendicular to the line y = 8x + 5?

Answers

Answer . m= -1/8

Step-by-step explanation:

The perpendicular slope is the negative reciprocal. Meaning that the numerator and denominator are switched and the sign of the slope becomes the opposite. (if the slope was -8, then the perpendicular slope would be 1/8)

Alexandra read 3/7 of the pages in her 112-page book. How many pages has she read already?

Answers

Answer:

48 pages

Step-by-step explanation:

112÷7=16 so 3x16=48

1. Su familia va a cenar a un restaurante de estilo sureño. Hay 6 personas en tu familia. Algunos piden la cena de pollo por $ 14 y otros piden la cena de bistec por $ 17. Si la cuenta total fue de $ 99, ¿cuántas personas pidieron cada cena?

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hola. én gou. hul gh ghî

An elevator can carry up to 2,500 pounds. Suppose the weight of an average adult is 150 pounds. At most how
many average-sized adults can safely ride the elevator at the same time? Write an inequality and solve. Let p
represent the number of people who can safely ride the elevator.

Answers

Answer:

Step-by-step explanation:

2500/150=16 2/3

but we dont want 2/3 of a person so just ignore that part

im in a hurry sorry

Answer:

Step-by-step explanation:

assuming that you can go up to 2500, simply multiple until you reach your target of 2500, i did 150 x 16 to get 2400, 100 less than 2500, meaning it would be safe and one more wouldn't.

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