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Lina20 [59]
2 years ago
9

PLZZZ HELPP

Mathematics
1 answer:
lara [203]2 years ago
8 0
The first one is the correct answer
You might be interested in
1. 36(a+b)^2 - 49(a-b(^2
Brums [2.3K]

Answer:

-13a^2 + 170ab - 13b^2.

Step-by-step explanation:

1.  36(a+b)^2 - 49(a-b)^2

This is the difference of 2 squares: a^2 - b^2 = (a + b)(a - b).

36(a+b)^2 - 49(a-b)^2

= (6(a + b) + 7(a - b))(  6(a + b) - 7(a - b))

= (6a  + 7a + 6b - 7b)( 6a - 7a + 6b + 7b)

= (13a - b)(-a + 13b)

If you require the expansion of this it is:

-13a^2 + 170ab - 13b^2.

8 0
3 years ago
Which equation is a step in solving the equation 5 - 3x + 2 = 19?
Leni [432]

Answer:

D. 5-3x = 17

Step-by-step explanation:

The step carried out was subtracting 2 from both sides.

5 - 3x + 2 = 19 \\ 5 - 3x + 2 - 2 = 19 - 2 \\ 5 - 3x = 17

4 0
3 years ago
Kevin filled up his 14-gallon gas tank for $29.26. What was the price per gallon?
Pachacha [2.7K]

Answer:


Step-by-step explanation: You just divide 29.26 dollars by 14 and get the unit rate of ..

2.09

7 0
3 years ago
PLEASE HELPPP!!!!
dybincka [34]

Answer:

A. The point (0,0) shows that the cost is $0 for 0 kg of cashews.

C. The point (2,60) shows that it cost $60 for 2 kg of cashews.

B. The constant of proportionality for this graph is 30.

Step-by-step explanation:

D is wrong

7 0
3 years ago
What is the answer to this <br> 10−(4y−8)=2−5y
Harrizon [31]
The answer to this math problem is y=-16
8 0
3 years ago
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