STUDENT HOURS KATY 5.5
MIKE 4.25
SAM 7.75
HOLLY 3.5
JAKE 6.25
You've randomly surveyed some students in your science class to find the number of hours per week they study. What is the mean, based on your sample?
A) 4.75 Hours
B) 5.05 Hours
C) 5.25 Hours
D) 5.45 Hours

Answers

Answer 1
The best answer to go with is b

Related Questions

9 + 7 - 3 x 3 - 2 to the second power

Answers

Answer:

3

Step-by-step explanation:

PLS ANSWER PLS PLS PLS

The Sharps purchased a new sectional. The cost
was $1,784. They also had to pay 7.25% sales
tax. What was the total amount paid?

Answers

Answer:

I think its $1,913.34

Step-by-step explanation:

7.25 + 100 = 107.25 divided by 100 = 1.0725 x 1784 = 1913.34

Elsa received a $80 gift card for a coffee store. She used it in buying some coffee that cost $8.14 per pound. After buying the coffee, she had $31.16 left on her
card. How many pounds of coffee did she buy?
Il pounds

Answers

Answer:

Step-by-step explanation:

80-31.16=48.84 (the amount of the money that Elsa spent)

48.84:8.14=6 (the amount of coffee that she bought)

She can buy 6 pounds

use long division to write the fraction as a decimal. 4/9

Answers

Answer:

4 divided by 9 = 0.4 (repeated)

Answer:

0.44444444444

Its math

What’s three times three

Answers

Given

The statement is "three times three".

To find:

The value of given statement.

Solution:

We know that the multiplication sign "×" is used for "times".

The given statement is "three times three".

So, the mathematical expression for the given statement is:

three times three = 3 × 3

                             = 9

Therefore, the value of three times three is 9.

Consider this system of equations.
x + 2y = 5,
–x + 3y = 6

The x- and y-intercepts of the first equation are found below.

x-intercept:

y-intercept:

x + 2(0) = 5
x = 5

(5, 0)

(0) + 2y = 5
2y = 5

y = 5
2
= 2.5

Find the intercepts for the equation –x + 3y = 6.

What is the x-intercept?


What is the y-intercept?

Answers

-x=6, x intercept is at x=-6 or (-6,0)
3y=6, y intercept is at y=2 or (0,2)

Use the net to find the surface area of the prism

Answers

Answer

364 i think

Step-by-step explanation:

find the area of triangles + area of rectangles

area of triangles: b x h x 1/2

6 x 4 x 1/2

= 12

but two triangles, so . double it and then you get 24 for the two triangles areA

area of rectangles;

l x w

22 x 6

= 132

but two up and down rectangles, so double it = 264

now back rectangle:

l x w

22 x 4

= 88

Add it all up together and you have the surface area!

Surface Area - The area of the surface of the 3D object, NOT volume

pls mark brainliest unless someone else answered it or im wrong thank you! :D

You estimated that there are 18 cats in the neighborhood, but after counting the actual amount was 9 cats. What is the percent error?

Answers

Answer:

50% error

Step-by-step explanation:

9/18=0.5

Barry buys a package of pasta
for $2.39 and a jar of tomato sauce for
$3.09. He uses a $0.75 coupon and a
$0.50 coupon. What is the total cost of
Barry’s purchase? Write an expression to
show your work.

Answers

Answer:

Pasta: $2.39

Jar of tomato sauce: $3.09

Coupons(-): $0.75+$0.50

Total cost: $4.23

Step-by-step explanation:

The total cost of Barry's purchase is the addition of the cost of purchase of pasta and a jar of tomato sauce, and the value of coupons is reduced from the answer. It would be the final answer.

Which answer describes the sequence {1,3,7,15,…} as a mathematical statement? The nth value equals 1 more than twice the first value. The nth value equals 1 more than twice the previous value. The nth value equals the sum of the previous 3 values. The nth value equals 1 more than the sum of the previous value and n. Checkpoint 04 Click on the numbers to jump from one question to another.

Answers

Answer:

Step-by-step explanation:

Each new value is 1 plus twice the previous value.

First value is 1.  Then,

 1 plus twice 1 = 3, the second value.

Second value is 3

 1 plus twice 3 = 7, so

Third value is 7

and so on (this is merely a check)

An arithmetic sequence is a sequence in which the difference between any two terms of the sequence is the same or equal. The nth of the series will be aₙ =1 + (n-1)2.

What is Arithmetic Sequence?

An arithmetic sequence is a sequence in which the difference between any two terms of the sequence is the same or equal.

aₙ = a₁ + (n-1)d

where,

aₙ is the nth term of the sequence,

a₁ is the first term of the sequence,

r is a common difference between every two terms.

The arithmetic sequence given is 1,3,7,15,…, therefore, the common difference between the series and the value of the first term can be written as,

d = 3-1 = 2

a₁ =1

the nth term of the series can be defined as the,

aₙ = a₁ + (n-1)d

aₙ =1 + (n-1)2

Hence, the nth of the series will be aₙ =1 + (n-1)2.

Learn more about Arithmetic Sequence:

https://brainly.com/question/15412619

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Answers

Answer:

(3, [tex]\frac{1}{8}[/tex] )

Step-by-step explanation:

Hi there,

To find the answer to this question, you can simply use a graphing calculator to graph this function. When looking at the values of points along the function, we find that (3, [tex]\frac{1}{8}[/tex] ) is one of the answer choices.

Hope this answer helps.

Cheers.


This is due in 20 min somebody pls help


For the right triangles below, find the exact values of the side lengths c and h.
If necessary, write your responses in simplified radical form.

Answers

the correct angel for 9[4/7-8+10]    hope this helps this is how i learned it...          Step-by-step explanation: just did

DASA
Ther value for this data is 0.9701. This tells us that the graph shows a
Select a Value


some one plss help me

Answers

Answer:

Strong association between X and Y.

Step-by-step explanation:

I got the question right on the Algebra Nation

graph the equation. y=3(x+1)^2-2

Answers

Answer:

In Photo

Step-by-step explanation:

Could I get Brₐinliest plz close to leveling up

find the median and mean of the data set below 19,12,44,15,44​

Answers

Answer:

median =19

mean=26.8

Step-by-step explanation:

-MEDIAN is the middle number when arranged in ascending order

-MEAN is the sum (total) of all values set devided by the number of values on the list

What is the largest perfect square factor of 96?

Answers

Answer:

So the biggest perfect square would be 4^2=16 and you get 6 left over. 16. 16x6=96 and 16 is the highest number that is a perfect square or in other words 16 is the highest number that goes into 96

Step-by-step explanation:

Answer:

there is no largest perfect square of 96

Step-by-step explanation:

just do its common factor

What is the value of X?

Answers

Answer:

36

Step-by-step explanation:

multiply 16 by the opposite, which is 9/4.

The line y=2x+5 would pass through which of the following points?
A(0,2)
B. (0,10)
C. (0,5)
D. (0,7)

Answers

Answer:

C:  (0, 5)

Step-by-step explanation:

The x-coordinates are all the same:  0.  In y = 2x + 5, the 2x term would be zero in all those cases, leaving only the y-intercept (5).  

We conclude that the line would pass through (0, 5), which is the y-intercept.



Sarah has a bag of 100 marbles. 40 are blue, 40 are green, and 20 are purple.


What is the probability of Sarah picking a blue marble on 2 consecutive draws without replacement?

Answers

Answer: The probability of Sarah picking a blue marble on 2 consecutive draws without replacement = 15.8%

Step-by-step explanation:

Given: Sarah has a bag of 100 marbles. 40 are blue, 40 are green, and 20 are purple.

The probability of Sarah picking a blue marble on 2 consecutive draws without replacement = [tex]\dfrac{40}{100}\times\dfrac{39}{99}=0.157575757576\approx15.8\%[/tex]

Hence, the probability of Sarah picking a blue marble on 2 consecutive draws without replacement = 15.8%

The standard deviation of a population is 4.1.
What is the margin of error?

Answers

If the standard deviation of a population is 4.1. The margin of error is 16.81.

Margin of error:

Given:

Standard deviation=4.1

Hence:

Variance will be the standard deviation  square

Variance=Standard deviation²=4.1×4.1

Variance=Standard deviation²=16.81

So,

Margin of error=16.81

Therefore the margin of error is 16.81.

Learn more about margin of error here:https://brainly.com/question/10218601

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PLEASE HELP ME!!! I'M ALMOST OUT OF TIME!!

Answers

Answer:

I am confused what the question is asking

Step-by-step explanation:

Could you please comment down below and restate the question?

Answer: ok so.. exponential function's is kinda the same process as slopes and linear equations and functions ok so........

For slopes its rise over run but for this question its...... TO BE CONTINUED LOL (go to the explanation)

Step-by-step explanation:

So for the run on the x axis its 7 you can see it goes upward a little bit on the 7 but the 7 still counts :D

ok so we got 7 and as the line rises 9go to the picture added for more understanding) So as the line rises we can see from were i marked it in the picture that it touches the 2. So we got 2 as the rise and 7 as the run but remember this is not slopes lol so its kinda different.

THE ANSWER IS A

The diameter of a human hair is about 0.00067 inches in length. How is this length
expressed in sclentific notation?

A 6.7 x 10 4in.

B 67 x 10 4 In.

C 6.7 x 10-4 in.

D 67 x 10-4 in.

Answers

Answer:

C

Step-by-step explanation:

All numbers in scientific notation or standard form are written in the form m × 10n, where m is a number between 1 and 10 ( 1 ≤ |m| < 10 ) and the exponent n is a positive or negative integer.

Therefore, the decimal number 0.00067 written in scientific notation is 6.7 × 10-4.

7/8 -7/10 ,giving your answer as a fraction in its lowest terms​

Answers

Answer:

7/40

Step-by-step explanation:

(70_56)/80

= 14/80

divided by 2

=7/40

Center (-9,0) radius 1

Answers

Answer:

Step-by-step explanation:

im guessing you need the equation of the circle?

plugging it into the standard circle equaition you would get (x+9)^2+y^2=1 and then you would just need to rearaange it into standard form

Need this ASAP pls help

Answers

wheres the question?

Answer:

It will be the first option

Step-by-step explanation:

is ib in canada hard?

Answers

Answer:

yes because Canada is american country

yes it is. i’ve been there and its not fun

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Answers

Answer:

B they equations i are múltiple

So there's arithmetic sequence a9 is 2 and s11 is 15.4,
Find a3​

Answers

Answer:

a9=2

a11=15.4

a3=?

________

a3 = −38.2

Step-by-step explanation:

Hope this helps u . ♡

5x - 2
5x - 4
5x - 5
pls answer soon!​

Answers

Answer:

What exactly do you want me to do? Multiply each binomial together? Add them together? If you clarify, I'd be more than happy to help you.

Step-by-step explanation:

What is 2 1/3 : 5/6 =

Answers

Answer:

2.3 : 0.83

Step-by-step explanation:

Simplify

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Your head of section has given you the following extract from the cashbook for the month of February 2021:Sh.Sh.Receipts during the month2,938,000Balance brought forward (1.2.2021)1,522,000Balance carried forward (28.2.2021)1,108,000Payments during the month2,524,0004,046,0004,046,000The head of section further informs you that all receipts are banked intact and all payments are made by cheque. 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