1 year ago

18

Mathematics

1 answer:

goldfiish [28.3K]1 year ago

8 0

Answer:

Step-by-step explanation:

S.A for open-faced box= lb + 2(bh+lh)

= (7-2h)(7-2h) + 2[h(7-2h)+h(7-2h)]

= (7-2h)² + 2[2h(7-2h)]

= (7-2h)² + 4h(7-2h) in²

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Step-by-step explanation:

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3 years ago

Joe has 17 coins, nickels and dimes, that total up to $1.25. How many nickels does he have?

kifflom [539]

Answer:

9 nickels

Step-by-step explanation:

He has 17 coins.

$1.25 is 12 dimes and 1 nickel. But that is only 13 coins.

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If m∠JKP=3r+12 and m∠2=4r−2, what is ∠JKN?

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3 years ago

Simplify 2a+2−3a−5+a−4+7a.

zhuklara [117]

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7a-7

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2a+2−3a−5+a−4+7a.

Combine like terms

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3 years ago

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