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kumpel [21]
2 years ago
9

A doctor collected data on how many hours children of different ages slept in a day. Data for 5 participants are

Mathematics
1 answer:
andre [41]2 years ago
4 0

The answers is the picture I posted. I did in khan academy and it was right.

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17. x^2 + 2x + 1
valentina_108 [34]

Answer:

E. This polynomial could be factored by using grouping or the perfect squares methods.

Step-by-step explanation:

x^2 + 2x + 1

There is no greatest common factor

This is a perfect square

a^2 + 2ab+ b^2 = ( x+1)^2

We can factor this  by grouping

x^2 + 2x + 1

(x^2 +x) + (x+1)

x( x+1)  + x+1

Factor out x+1

( x+1)  ( x+1)

This is not the difference of squares since there is no subtraction

5 0
3 years ago
In september kick read 12 books In october he read 18 books In novermber nick read 16 books how many more books did read in sept
igomit [66]
September : 12

october:  18

november : 16

together in sept. and oct. = 12+18 = 30

number of books he read more in sept. and oct. then just nov.= 30 - 16 = 14

in short, the answer is 14 books.

hope it helps you!

5 0
3 years ago
Read 2 more answers
What is midpoint of A(2, 3) and B(-2, 5)?
Elis [28]

Answer:

The midpoint of A and B is (0, 4).

Step-by-step explanation:

Use the midpoint formula, ((x₁ + x₂)/2 , (y₁ + y₂)/2)

First, solve for the x part.

(2 + (-2))/2

0/2

0

So the x-coordinate of the midpoint is 0.

Then, solve for the y part.

(3 + 5)/2

8/2

4

So the y-coordinate of the midpoint is 4.

7 0
3 years ago
PLEASE HELP ME! THANK YOU! :)
QveST [7]
All we need to do is to divide August and September rainfall measurements into two equal halves and then substract 0.6 from one of them and add 0.6 to the other one.

6.2 ÷ 2 = 3.1
3.1 - 0.6 = 2.5
3.1 + 0.6 = 3.7

It's said that in August there was 0.6 inch more rainfall, so the bigger value (3.7 inches) is for August and the smaller value (2.5 inches) is for September.
4 0
3 years ago
Max is building a scale model of the solar system. In Max's model, the distance from Earth to the sun is 1.2 feet, and the dista
olya-2409 [2.1K]
(d1/d2)×d3=d4
d1=real distance 93million miles of earth
d2=model distance of earth
d3=model distance of Venus
d4= real distance in million miles of Venus

(93/1.2)×0.86= 66.65 million miles
4 0
3 years ago
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