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3 years ago

If x+y = 12 and xy = 14, find the value of (x2 + y2).

Mathematics

2 answers:

Strike441 [17]3 years ago

7 0

Answer:

Step-by-step explanation:

If x+y=12, x2+y2 must be double this. 12×2=24

11Alexandr11 [23.1K]3 years ago

3 0

Answer:

Substitute x + y = 12 and xy = 14 in the above expansion, we get, Therefore, the value of is equal to 116.I think

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2 years ago

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3 years ago

Soham's video game system measures 8 inches long, 6 inches wide, and 2 inches tall. Sean's video game system measures 1 inch lon

Lady_Fox [76]

Answer:

Combined volume of the two game systems $=416$ cubic inches

Step-by-step explanation:

Volume of a cuboid = length × breadth × height

Soham's video game system measures 8 inches long, 6 inches wide, and 2 inches tall.

So,

Volume of Soham's video game system = 8 × 6 × 2 = $96$ cubic inches

As Sean's video game system measures 1 inch longer on all sides,

the video game system measures $8+2=10$ inches long, $6+2=8$ inches wide, and $2+2=4$ inches tall.

Volume of the video game system = 10 × 8 × 4 = $320$ cubic inches.

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