3 years ago

3

Mathematics

1 answer:

Cloud [144]3 years ago

4 0

Your answer :

15

Bc

1234

You might be interested in

Alex and Lara have $21.00 each to spend at a book fair, where all students receive a 35%; discount. They both want to purchase a

Vilka [71]

The book cost 28.50 + 10%. Take 28.50 x .10 = 2.85 + 28.50 = 31.35 students get a 35% discount take 31.35x.35=10.97 now subtract 31.35 -10.97= 20.48 they have 21.00 dollars to spend after buying the book they .52 cents left.

8 0

3 years ago

Leo jumped on the couch 204 times and his friend heather jumped on it 80 times then the couch broke and they both get in big tro

Maksim231197 [3]

They jumped on the couch a total of 284 times before the couch broke. 204 + 80=284 times.

5 0

4 years ago

Read 2 more answers

SEE QUESTION IN IMAGE

Pavel [41]

Answer:

5, 6, 7

(5 + 6 + 7)/3 = 6

<u>Standard deviation:</u>

σ = $\sqrt{((5 - 6)^2+(6-6)^2+(7-6)^2)/3} = \sqrt{2/3}$

Correct choice is d

-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5

(-5 -4 - 3 - 2 - 1 + 0 + 1 + 2 + 3 + 4 + 5)/11 = 0

<u>Standard deviation:</u>

σ = $\sqrt{((-5)^2+(-4)^2+(-3)^2+(-2)^2+(-1)^2+0^2+1^2+2^2+3^2+4^2+5^2)/11} = \sqrt{10}$

Correct choice is d

3, 4, 5, 6, 7

<u>Standard deviation:</u>

σ = $\sqrt{((3-5)^2+(4-5)^2+(5-5)^2+(6-5)^2+(7-5)^2)/5} = \sqrt{2}$ ≈ 1.4

Correct choice is d

5 0

3 years ago

Can somebody plz help and explain this

Yanka [14]

Answer:

C is the answer

Step-by-step explanation:

Please mark brainliest

7 0

4 years ago

Read 2 more answers

Graph y=2x <br><br> Please help meeee

iris [78.8K]

Answer:

2x is going to be on (0,2)

Step-by-step explanation:

3 0

3 years ago