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yKpoI14uk [10]
2 years ago
10

Justin bought 3 shirts for $18 each, 2 pair of socks for $3.99 a pair, and a pair of

Mathematics
1 answer:
Dimas [21]2 years ago
6 0
The answer would be- P=$116.07 because you have to x all the numbers then add some
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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
How many oranges does Heidi need to make one large orange<br> juice? Show your work.
Sindrei [870]

Answer:

Heidi needs to make 9 oranges to make one large orange juice, give me brainliest answer:)

4 0
2 years ago
Evaluate:<br> 2a + 7b for a = 5 and b = 3
Schach [20]

Answer:

31

Step-by-step explanation:

Substitute the values for the variables.

2(5)+7(3)\\10+21\\31

7 0
2 years ago
Read 2 more answers
Sarah, amy and liam stand on some weighing scales two at a time.here are the measurements:sarah and amy 70kgsarah and liam 80kgl
OLga [1]
A+s=70, s+l=80, l+a=80

from the first s=70-a which makes the second:

70-a+l=80

-a+l=10

a=l-10 which makes the third:

l+l-10=80

2l-10=80

2l=90

l=45

So Liam weighs 45 kg.
5 0
3 years ago
A cylinder has a radius of 14 meters. Its volume is 11,693.36 cubic meters. What is the
tigry1 [53]

Answer:

The height would be 18.99

4 0
2 years ago
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