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mote1985 [20]
3 years ago
13

Please Help ASAP 20pts

Mathematics
1 answer:
tia_tia [17]3 years ago
3 0

Answer:

640 cm ^2

Step-by-step explanation:

40x4x4 = 640

let's say b = 20 and h = 4

1/2(20)(4) = 40

scale by 4

b= 80 h = 16

1/2(80)(16) = 640

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Anyone help please I need it
andreev551 [17]

Answer:

-10+i\sqrt{2}

Step-by-step explanation:

One is given the following expression:

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\sqrt{4}-\sqrt{-98}-\sqrt{144}+\sqrt{-128}

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\sqrt{2*2}-\sqrt{-1*2*7*7}-\sqrt{12*12}+\sqrt{-1*2*8*8}

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