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finlep [7]
3 years ago
5

How could you use the Commutative Property of Addition to rewrite the expression −21 + 7? A) −21(7) B) 3(−21) + 7 C) 7 + (−21) D

) 3(−7) + 21 Submit
Mathematics
1 answer:
Ierofanga [76]3 years ago
4 0

Answer:

C

Step-by-step explanation:

The commutative property of addition reorganizes parts of an equation without changing the answer. C includes the same numbers (-21, +7) without changing the answer (-14)

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(7,-1) and (6, 6)
vova2212 [387]

Answer:

y=-7x+48 slope would be -7

Step-by-step explanation:

Used a Regression Calculator

3 0
2 years ago
In the diagram, R, S, and T are all points of tangency. What is the perimeter of Triangle<br> XYZ?
Molodets [167]

Answer:

54 cm

Step-by-step explanation:

Perimeter = TZ + TX + RX + RY + SY + SZ

TZ = 5 cm

TX = 13 cm

RY = 9 cm

RX = TX = 13 cm (tangents drawn from and external point)

SY = RY = 9 cm (tangents drawn from and external point)

SZ = TZ = 5 cm (tangents drawn from and external point)

Plug in the values:

Perimeter = 5 + 13 + 13 + 9 + 9 + 5 = 54 cm

7 0
2 years ago
What does 144 =to for a squared
Dafna11 [192]
12 *12 = 144

Therefore 12^2 = 144
5 0
2 years ago
Read 2 more answers
Juan want to eat fewer than 800 calories at lunch the table shows the menu at the school cafeteria with the calorie total listed
vova2212 [387]

Answer:

Can you put the picture

Step-by-step explanation:

6 0
3 years ago
18.
ASHA 777 [7]

Answer:

19/100 which is already simplified( it can't be simplified)

How I got the answer: subtract 81 from 100 and you'll get 19.

Put 19 over 100 (19/100) and there's the answer.

3 0
3 years ago
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