9. April's test scores in physics are 78, 85,65, 82, 90, and 95. Find the mean
and standard deviation of the data.

Answers

Answer 1

Answer:

82.5

Step-by-step explanation:

the mean and standard deviation of the data is 82.5

Answer 2

Answer:

82.6666667 or 82.7

Step-by-step explanation:

79+85+65+82+90+95=496

496 divided by 6=82.6666667


Related Questions

The equation for compound interest is A=P(1+rn)nt, where P is the initial amount invested, r is the interest rate as a decimal, n is the number of times compounded annually, and t is the number of years.

Determine the value of the account if the initial investment is $8,000 compounded monthly at a rate of 6% after 10 years.

$14,555.17
$8409.12
$8480.00
$14,326.78

Answers

it would be $8409.12

Suppose that a phone that originally sold for $800 loses 3/5 of its value each year after it is released.


After 2 years, how much is the phone worth?




Write an equation for the value of the phone, , years after it is released.

Answers

Answer:

It will be worth $128.

Step-by-step explanation:

After 1 year, 3/5 of 800 is 480 which leaves the value at $320, and then after 2 years, 3/5 of 320 is 192. 320-192 leaves the value at $128.

Write the equation of the line that passes through each pair of point (1,2) (-1,-3)

Answers

Answer: y = 3

Step-by-step explanation:  

So, we must find an equation of a line that passes through these two points such that we find the slope first as,  

m = (3-3) / (2-(-1)) = 0 / 3 = 0. Then we bring up the point-slope form of an equation to find the line such that  

y - y1 = m(x - x1). Next,  

y - 3 = 0(x - (-1))

y - 3 = 0..............Then add 3 such that the equation of a line is  

GENIUS OR ANYONE HELP ME PLZ PLZ PLZ!!!!

Answers

Answer:

[tex]\frac{16}{4}[/tex], [tex]\frac{22}{7}[/tex],[tex]\sqrt{5}[/tex], [tex]\sqrt{3}[/tex]

Step-by-step explanation:

i got it right

Answer:

[tex]\frac{16}{4} ,\frac{22}{7}, \sqrt{5} ,\sqrt{3}[/tex]

Step-by-step explanation:

Hope this will help

find The surface area of the cylinder. round your answer to the nearest tenth

Answers

Answer:

791.7

.......

........................

.

of y varies directly as x and y=4.find the constant of variations .​

Answers

Answer:

y = kx for  fixed constant k

20 = k(4)  -->  20 = 4k --> k=5

y = 5x

30 = 5x

x=6

Step-by-step explanation:

Answer: b sorry if im wrong

Step-by-step explanation:

b o edge

What is the total cost of a $136 radio that has a 25% discount and sales tax is 5%?
PLEASE HELPPP

Answers

Answer:                Price Before Tax: $102.00

Tax: $5.10

Final Price: $107.10

Original Price + Tax: $142.80

Total Savings: $35.70

Savings:

35.70

Tax:

5.10

Total Payment:

107.10

 

Step-by-step explanation:

Answer:

107.1

Step-by-step explanation:

136 × 25% = 34

136 - 34 = 102 (Price after the discount)

102 × 5% = 5.1

102 + 5.1 = 107.1 (Price after the discount and sales tax)

Name the steps of solving 5x+4=40

Answers

Answer:

Step-by-step explanation:

Simplifying

5x + -4 = 40

Reorder the terms:

-4 + 5x = 40

Solving

-4 + 5x = 40

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '4' to each side of the equation.

-4 + 4 + 5x = 40 + 4

Combine like terms: -4 + 4 = 0

0 + 5x = 40 + 4

5x = 40 + 4

Combine like terms: 40 + 4 = 44

5x = 44

Divide each side by '5'.

x = 8.8

Simplifying

x = 8.8

Jess used
11 1/2 cups of flour to make 3 1 / 2
batches of oatmeal cookies. One batch makes 24 cookies.
If Jess follows the same recipe, about how many cookies can she make with 16 1/2 cups of flour ?

A- 30

B- 120

C-200

D-380

Answers

Answer:

30

Step-by-step explanation:

Answer: 30 cookies
Explain: all the other numbers are too high lol

In angle ABC the measure of Angle B is 13 more than the measure of Angle A and the measure of angle C is 9 less than twice the measure of angle A find the measure of each angle in ABC. only an algebraic will be accepted.

Answers

Answer:

its b

Step-by-step explanation:

its

f(x)=2x^2+x-4
Find f(-10)

Answers

Answer:

-386

Step-by-step explanation:

-20^2=400-10-4=386

Answer is 386

Answer:

rawr im back

Step-by-step explanation:

Calcula los angulos indicados en cada figura.​

Answers

Answer:

Kos kosa para wlang hasol wlang kos kos sa balongosa

How to add a Histogram plz my homework is due tomorrow so I did now sorry if I rushed you but my mom is getting my report card so I need to up those grades

Answers

Answer:

Step-by-step explanation:

Write an inequality for the following statement: Sharon earns at least 8 dollars (d) per baby-sitting job.​

Answers

Answer:

d ≥8

Step-by-step explanation:

She is earning AT LEAST meaning that she gets at least more than 8 dollar per job

help asap solve the question indices​

Answers

The answer would be ~-2~

Hope this helps

Have a great day/night

Feel free to ask any questions

Please help! Will pick Brainliest if it's the correct answer!

Answers

It is 2.491462
Hope it helps

Help please! Find the surface area WITHOUT the bottom.

Answers

Answer:

B

Step-by-step explanation:

(6.5×6.5)2+(1÷2×5×6)2

need HELP ASAP WITH THISSS!!

Answers

Answer:

b

Step-by-step explanation:

Answer:

corresponding angles..

An oven is set at 176.8°C. Marla increases the temperature by 23.8°C.

What is the final oven temperature?

Answers

Answer:

200.6 degrees Celsius

We have the given number, 176.8 degrees Celsius, and we add or increase it by 23.8 degrees.

176.8 + 23.8 = 200.6

Our final answer is 200.6 degrees Celsius.

~Hope this helps~

Answer:

200.6'C or 461.2'F

Step-by-step explanation:

176.8'C

+ 23.8'C

--------------

200.6'C

To make 'F, we must add 30, then multiply by 2.

200.6'F

+ 30.0'F

--------------

230.6'F

x 2

--------------

461.2'F

--------------

Not sure if you needed all this but happy to help!

!!will give brainliest!! If you want addition to be done before multiplication, what do you need to add to the problem?​

Answers

I beive your doing "Order of Operations"

Heres some information.

Order of operations tells you to perform multiplication and division first, working from left to right, before doing addition and subtraction. Continue to preform multiplication and division from left to right. Next, add and subtract from left to right.

(!) Leave a comment to let me know if you need more information or any help (!)

can someone help me find the side of a 30 60 90 triangle​

Answers

Answer:

y = 7.5

x = 7.5√3

Step-by-step explanation:

sin(30) = 1/2

cos(30) = √3/2

Above is rule

==>

y = 7.5

x = 7.5√3

A student did not complete two assignments in Math class this week.
Each assignment was worth 5 points.
The student's current grade is an 80. How many points will they lose?

Answers

Answer : They will lose 10 points

Step-by-step explanation:

Answer:

They will lose 10 points

Step-by-step explanation:

Each assignment was worth 5 points.

5x2=10

Her grade would be a 70%

A-(5,-9)
B-(-9,-5)
C-(-9,5)
D-(-5,9)

ASAP HELP!!! WILL MARK BRAINLIST!!!

Answers

it’s supposed to be (5,9) both numbers positive

HELP PLS!!

Find the measure of each interior and exterior angle of a regular 40-gon.

Answers

Answer:

All exterior angles will add up to 360 degrees, regardless of the number of sides.

For the sum of the interior angles, use this formula:

The sum of the interior angles = (N x 180) - 360

Where N = the number of sides

So, (40 x 180) - 360 = 6840 degrees

The measure of each interior and exterior angle of a regular 40-gon are [tex]171^\circ[/tex] and [tex]9^\circ[/tex] respectively.

Important information:

The given shape is a regular 40-gon.Interior and exterior angles:

Interior angle of a regular polygon is [tex]\dfrac{(n-2)\times 180^\circ}{n}[/tex], where n is the number of sides.

A regular 40-gon has 40 sides. So, the measure of each interior angle is:

[tex]\dfrac{(40-2)\times 180^\circ}{40}=38\times 4.5^\circ[/tex]

[tex]\dfrac{(40-2)\times 180^\circ}{40}=171^\circ[/tex]

Exterior angle of a regular polygon is [tex]\dfrac{360^\circ}{n}[/tex], where n is the number of sides.

A regular 40-gon has 40 sides. So, the measure of each exterior angle is:

[tex]\dfrac{360^\circ}{40}=9^\circ[/tex]

Therefore, the measure of each interior and exterior angle of a regular 40-gon are [tex]171^\circ[/tex] and [tex]9^\circ[/tex] respectively.

Find out more about 'Interior and exterior angles' here:

https://brainly.com/question/15716862

PLEASE HELP MEE
Find the slope of the following lines:

Answers

Answer:

(left to right top to bottom) -3/4, 4, 1/3, -2

Step-by-step explanation:

the sequence of the numbers below is missing an eighth value. which of the following is the missing value? sequence: 5, 6, 8, 11, 15, 20, 26, __, 41

Answers

Answer:

D - 33

Step-by-step explanation:

From 5 to 6, the number is increasing by 1. Then from 6 to 8, it increases by 2. From 8 to 11 it increases by 3. This pattern continues throughout the entire sequence. Since between 20 and 26, it increases by 6, 26+7 should equal the number between 26 and 41. This number would be 33.

Simplify Please and Thank you!

Answers

Answer:

[tex]2\sqrt{6}[/tex]

Step-by-step explanation:

[tex]\sqrt{24} \\= \sqrt{4} * \sqrt{6}\\= 2\sqrt{6}[/tex]

If you deposit $24,500 into a bank account paying 6% annual interest compounded
semi-annually for 5 years, how much interest will you earn? Round to the nearest cent.

Answers

Answer:

$7,719.33

Step-by-step explanation:

$24,500 x 0.06 = $1,470

($24,500 + $1,470) x 0.06 = $1,558.20

($24,500 + $1,558.20) x 0.06 = $1,563.49

($24,500 + $1,563.49) x 0.06 = $1,563.81

($24,500 + $1,563.81) x 0.06 = $1,563.83

$1,470 + $1,558.20 + $1,563.49 + $1,563.81 + $1,563.83 = $7,719.33

PLEASE HELP!!! Find the slope of the line that passes through the points (-1,7) and (0,-3).​

Answers

Answer:

-10

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-3-7)/(0-(-1))

m=-10/(0+1)

m=-10/1

m=-10

Answer:

The slope is -10.

Step-by-step explanation:

Goal

Find the value of m/Find the slope.

Given

Two coordinate points which are (-1,7) and (0,-3).

Step 1

Use the slope formula which is rise over run also known as changes of y over changes of x.

[tex] \large \boxed{m = \frac{y_2-y_1}{x_2-x_1} }[/tex]

From the given coordinate points, substitute the values in the formula.

[tex]m = \frac{7 - ( - 3)}{ - 1 - 0} \\ m = \frac{7 + 3}{ - 1} \longrightarrow \frac{10}{ -1} \\ m = - 10[/tex]

Therefore, the value of m or slope is -10.

PLEASE HELP ITS DUE AT MIDNIGHT (pt 2)

Answers

Answer:

5. there was a:  18% decrease.

6.  if the intial value was 285 and there was a 15 difference then the final value is 300. The change is 5.26%.

7. She has a 33.3333 % increase

8. The amount of students increased by 23.0769%

I hope this somewhat helps

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