Demonstrates the commutative property across multiplication for 2 × 10 × 7

Answers

Answer 1

Answer: Commutative means that you can mix up the numbers, but still have the right answer.

2 x 10 x 7 =
2 x 7 x 10 =
10 x 2 x 7 =
10 x 7 x 2 =
7 x 2 x 10 =
7 x 10 x 2

Hope this helps :)

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Consider the equation 3p – 7 + p = 13. What is the resulting equation after the first step in the solution?

Can anyone help me on this question ?

Answers

Answer:

5.7 units

Step-by-step explanation:

Which expression represents y⁴ - 36 in simplest factored form?A. ( y² + 4)( y² - 9)
B. ( y² + 4)( y - 3)( y + 3)
C. ( y² + 6)( y² - 6)
D. ( y⁴ - 36)( y +1)

Answers

$y^4 - 36 = (x^2)^2-6^2 = (y^2+6) (y^2-6)\n \n \n a^2+b^2 =(a+b) (a-b) \n \n\n Answer : \ C. \ ( y^2+ 6)( y^2- 6)$

The number of students in a chess club decreased from 24 to 14. What is the percent decrease? Roundyour answer to the nearest percent.

Answers

Answer:

The original amount: 24

Final amount: 14

Percent of change = amount of change/original amount

Amount of change = greater value-less value = 24-14 = 10

Percent of change = 10/24 = 0.42 = 0.42%

Step-by-step explanation:

PROVE: ((1+cosx)/sinx)+(sinx/cosx)=((cosx+1)/(sinx+cosx)). Idk what to do because I'm pretty sure the way I did it was wrong...

Answers

I'll take the picture.
$(1+cos\theta)/(sin\theta)+(sin\theta)/(cos\theta)=\frac{cos\theta+1}{sin\theta{cos\theta}}$
Multiply by $sin\theta{cos\theta}$ to get:
$(1+cos\theta)sin\theta=cos\theta+1$ , which means that $sin\theta=1$ , like wtf?
I guess you got to this result.
Btw, if it's an equation you get that $\theta=k\pi$ , for k integer.

Estimate the sum by rounding each number to the nearest half or whole.

2 1/2+ 5 5/8

Answers

I believe the answer should be 9.

51% of the tickets sold at a school carnival were early-admission tickets. If the school sold 100 tickets in all, how many early-admission tickets did it sell?