Which properties are used to simplify -2/9+(2/9+2/3)-7/4+7/4 as 2/3 without first finding a common denominator?A) Commutative Property Of Multiplication
B) Commutative Property Of Addition
C) Associative Property Of Addition
D) Multiplicative Inverse Property
E) Additive Inverse Property
F) Additive Identity Property

Answers

Answer 1

Answer: E) additive inverse property

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20 POINTSThe expression 2x(3x^2 + 4) can be simplified into which of the following?
A. 5x^3 + 6x
B. 6x^2 + 8x
C. 6x^3 + 4
D. 6x^3 + 8x

Answers

Answer:

D. 6x^3 + 8x

Step-by-step explanation:

2x(3x^2 + 4)

Distribute the 2x

2x(3x^2) +2x( 4)

6x^3 +8x

Simplify the expression 4-3(2+5v)+7

Answers

4-3(2+5v)+7

= 4-(6+6c)+7
= 4-6-6v+7
= -2-6v+7
= 4-6v
= 2(2-3v) (ans)

Box contains 547698 marbles what is the number rounded to the nearest thousand

Answers

The number 7 is in the thousands place. Because the 6 is grater than 4, round the 7 up one to an 8. The answer is 548,000.

Answer:

548,000

Step-by-step explanation:

I need help on 13-26 please

Answers

13. 10% of 40
= 40 × 0.10 = 4

14. 12% of 100
= 100 × .12 = 12

15. 99% of 60
= 60 × .99 = 59.4

16. 100% of 81
= 81 × 1 = 81

17. 45% of 360
= 360 × .45 = 162

18. 55% of 1,024
= 1024 × .55 = 563.2

19. 45 + n = 97
n = 97 - 45 = 52

20. n - 18 = 100
n = 100 + 18 = 118

21. n - 72 = 91
n = 91 + 72 = 163

22. n + 23 = 55
n = 55 - 23 = 32

23. 5 × t = 105
t = 105 ÷ 5 = 21

24. b ÷ 13 = 8
b = 8 × 13 = 104

25. k × 18 = 90
k = 90 ÷ 18 = 5

26. d ÷ 7 = 8
d = 8 × 7 = 56

Please help out. Max points given a=12; b=?; c=22

Answers

18.44 because Pythagorean Theorem says that 12^2 + b^2 = 22^2. Then to solve you square the numbers, 144 - b^2 = 484, then subtract 144 from 484 and get 340, and the square root of 340 is 18.44.

Uh... I think I got it right, how about 18.44?

Bottles of water are on sale!Did you get a good deal?

Solve this problem in your math notebook, and upload it to the assignment.

Answers

Answer: Less, 44 cents

Step-by-step explanation: The new price is 5/4 of a dollar and in decimal form would be 1.25. The old price is 1.69 dollars meaning the new price is a better deal. To find the difference we subtract 1.25 from 1.69 giving us $0.44

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