Mathematics College

Find the standard deviation. Round to the nearest tenth.
251, 180, 281, 234, 295, 285, 194, 272, 291
O A. 42.6
O B. 31.7
O C. 45.6
O D. 40.2

Answers

Answer 1
The answer to the question is B

Related Questions

What is the measure of Q?

Answers

Answer:

<Q = 30

Step-by-step explanation:

2x + 70 + x - 10 = 180

3x + 60 = 180

3x = 120

x = 40

x - 10

40 - 10

30

<Q = 30 because of vertical angles

The measure is 30 good luck!!!!! Hope it’s right

For sample of 100 students, the median number of text messages sent per day is 90, the first quartile is 78, and the third quartile is 102.
Select all of the answers that create a true statement.
Approximately 25 students in the sample send
more than 90 text messages.
.
less than 90 text messages.
0 more than 78 text messages.
0 more than 102 text messages.
0 between 90 and 102 text messages.
O less than 78 text
messages.

Answers

Answer:

D. More then 102 text messages    E. Between 90 and 102 text messages   F. Less then 78 text messages

Step-by-step explanation:

Remember that the 25% means ONLY things in THAT 25%. No more no less. That might not make sense, but the answer is right;)

A civil engineer tested concrete samples to investigate the difference in strength, in newtons per square millimeter (N/mm2), between concrete hardened for 21 days and concrete hardened for 28 days. The engineer measured the strength from each sample, calculated the difference in the mean strength between the samples, and then constructed the 95 percent confidence interval, (2.9,3.1), for the difference in mean strengths.

Answers

48292959382828438822929

Answer:

d

Step-by-step explanation:

Ok Now can anybody help due in 1 and a half min will give the brainiest.

Answers

Answer:

-25, 5

Step-by-step explanation:

-22 + -25 = -47

-25/5 minutes = -5

since there is no -5 in speed, then the answer is 5

The probability distribution for a
random variable x is given in the table.
-5
3
-2
0
2
3
Probability
117
.13
.33
-16
11
-10
Find the probability that x<-3

Answers

Answer:

[tex]P(x \le -3) =0.30[/tex]

Step-by-step explanation:

Given

The attached probability distribution of x

Required

Find [tex]P(x \le -3)[/tex]

To do this, we consider all values of x less than or equal to-3.

So, we have:

[tex]P(x \le -3) =P(x=-5) + P(x = -3)[/tex]

From the table:

[tex]P(x=-5) = 0.17[/tex]

[tex]P(x = -3) = 0.13[/tex]

So, the equation becomes

[tex]P(x \le -3) =P(x=-5) + P(x = -3)[/tex]

[tex]P(x \le -3) =0.17 + 0.13[/tex]

[tex]P(x \le -3) =0.30[/tex]

I need help with this!!

Answers

Answer:

c

Step-by-step explanation:

Anna is solving this equation:
7- 3(2x - 5) = -(3x + 7)
Anna uses the distributive property for her first step.
Which equation shows the correct result of Anna using the distributive property?
A. 7- 6x – 5 = -3x +7
B. 7 - 6x + 5 = -3x - 7
C. 7-6x – 15 = -3x + 7
D. 7-6x + 15 = -3x - 7

Answers

Answer:

D

Step-by-step explanation:

if you distribute, you'll get D

Answer: D

Step-by-step explanation:

7-6x + 15 = -3x - 7

Issac’s paper airplane flew 5 2/12 feet. Lillian’s paper airplane flew 5 5/12 feet. How much farther did Lillian’s paper airplane fly?

Answers

Answer:

Hi! The answer to your question is Lillian's paper flew [tex]\frac{1}{4}[/tex] feet further than Issac's

Step-by-step explanation:

☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆

☆Brainliest is greatly appreciated!☆

Hope this helps!!

Stay Safe!!

- Brooklynn Deka

Answer:

3/12 or 1/4 foot.

Step-by-step explanation:

I hope this helps! Have a great rest of your day!

Lacey filled a measuring cup with 1/2 of a cup of vegetable oil. Then she poured 1/3 of a cup of the oil into a frying pan. How much oil is left in the measuring cup?

Answers

Answer:

1/6 of a cup

Step-by-step explanation:

You're trying to figure out what 1/3 subtract 1/2 is, right?

Well first, convert both of them so they both have the same denominator.

Common Denominator = 6

So, 1/3 is 2/6 and 1/2 is 3/6 and 2/6 plus 3/6 is 5/6. Well, what's left in the cup? 6/6 subtract 5/6 is 1/6

Hope that helps!

Gina deposits $2,000 into each of two savings accounts.
- Account I earns 5% annual simple interest.
- Account II earns 5% interest compounded annually.
Gina does not make any additional deposits or withdrawals. What is the sum of the balances of Account I and Account II at the end of 3
years?
0 $4,600
O $4,615.25
0 $4,630.50
$4,300

Answers

Answer:

4,615.25

Step-by-step explanation:

I just did a et and it is correct.

please help ill give brainly !! (no links)

Alfred Weagner noticed that the outline of many continents fit together, much like a puzzle leading him to propose the idea of a single super continental. This continental is known as-

A ) Eurasia
B ) Ind-Australia
C ) America
D ) Pangaea

Answers

Answer:

This continental is known as-

D) Pangaea

Answer:

choice D ) Pangaea

HELP WILL GIVE MOST BRAINILIST!

Answers

Answer:

Step-by-step explanation:

If you add up all the male and female categories, the total is 400

the number of females between 22 and 39 is 51

P(22 - 39)  = 51 / 400

P(22 - 39) = 0.1275

I think the answer you want is 51/400

Use the distributive property to rewrite each expression in its equivalent form

Answers

Answer:

picture?

Step-by-step explanation:

What are the first 100 digits of pi?

Answers

Answer:

3.1415926585979323846264338327952884197967987511582097414459230781546262862089910825342117067?

I did this from memory of a song I didn't use goo gle so all might not be right

Step-by-step explanation:

look at pic 10 pts will mark brainilest

Answers

Answer:

120 cm squared

Step-by-step explanation:

To find this is like finding a rectangle, you can take the triangular part of it and move it over to the side to become a rectangle

we can find the rectangle side by doing

21-6=15

then multiply it

15*8=120

Can someone please give me the answer for brilliant What is the volume of the right rectangular prism?

Answers

Answer:

[tex] 148 \frac{3}{4} \: {in}^{3} [/tex]

Step-by-step explanation:

volume of the right rectangular prism

[tex] = lwh \\ \\ = 10 \times 4 \frac{1}{4} \times 3 \frac{1}{2} \\ \\ = 10 \times \frac{17}{4} \times \frac{7}{2} \\ \\ = \frac{595}{4} \\ \\ = 148 \frac{3}{4} \: {in}^{3} [/tex]

Answer: The volume is 148 3/4 in3.

Step-by-step explanation:

V= l*w*h      

V= 10* 4 1/4* 3 1/2

V= 148 3/4

Paying my bills late will most likely cause my credit score to go down.

True or False

(GIVING BRAINLIEST)

Answers

Answer:

True

Step-by-step explanation:

Which of the following statements are true about the function below? Select all that apply. f(x)=(x-4)^2-1

Answers

Answer:

the zero is at 4 (option 1)

and the minimum is -1 (option 2)

Step-by-step explanation:

the zero is at 4 (option 1)

and the minimum is -1 (option 2)

Maria had 4 full cement blocks and one that was 5/9 the normal size if each full block weighed 3 8/9 pounds what is the weight of the blocks maria has

Answers

Answer:

17 and 58 over 81 pounds

Step-by-step explanation:

4. What is the formula for distance?
d= r/t
d = rt
d = r-t
d=r+t

ILL MARKBRAINLYST PLS

Answers

Answer:

b) d=rt

Step-by-step explanation:

I will give Brainliest

Answers

Answer:

It does not absorb moisture, but does absorb oil; this quality makes polyester the perfect fabric for the application of water-, soil-, and fire-resistant finishes. Its low absorbency also makes it naturally resistant to stains.

Step-by-step explanation:

I cant see the question's very well so ^

Answer:

2nd one

Step-by-step explanation:

Polyester is what a call hydrophobic meaning it doesn’t absorb water. Even after washing it it’ll repel the clean water making still dirty.

Find the area please..........................................

Answers

Answer:

Should be 216

Step-by-step explanation:

What is the total area of the composite figure below?
14.5
cm2
6 cm
A
12 cm 11
3 cm
2.5 cm
12 cm

Answers

the answer is 45 cm2 hope this helps have a nice day

Eric is a car salesman. He earns a weekly salary of $175 plus 4% commission on sales. This
week he sold a car for $35,450.
A) How much commission did he earn this week?
B) What did he earn in TOTAL this week?

Answers

Answer:

A) 141.8   B) 316.8

Step-by-step explanation:

I did 35.450k/100x4 to get 141.8. Then I did 175+141.8

carla has a red shirt, a pink shirt, and a white shirt. She has blue jeans, yellow jeans, and black jeans. She also has solid colored shoes and striped colored shoes. How many different combinations can she make?​

Answers

Answer:

15 different pairs.

Step-by-step explanation:

I hope this helps. :D

PLEASEEE HELP ME WITH MATHHHHH GIVING BRAINLYIST

Answers

Answer:

4 18/2 is first one   second is    1/1  and last is 4/5

Step-by-step explanation:

423 inches = _________ feet, _________ inches

Answers

Answer:

432 inches = 35 feet and 3 inches

Solve for y. Take you time

Answers

Answer:

equation ?

Step-by-step explanation:

where is the equation

The point I (–4, –1) is rotated 90 about the origin. What is the image of I?

Answers

9514 1404 393

Answer:

  I'(1, -4)

Step-by-step explanation:

The transformation for rotation 90° about the origin is ...

  (x, y) ⇒ (-y, x)

  I(-4, -1) ⇒ I'(1, -4)

Adam is thinking of a mystery number. If he divides it by 9 and then subtracts 7 from it, the result is 1. What is Adam's mystery number?

Answers

Answer:

72

Step-by-step explanation:

1+7=8

8*9+72

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