3 years ago

The formula for finding the perimeter of a rectangle with length, l, and width, w, is P = 2l + 2w.

2 answers:

7 0

P1=2(l+w)---->(equation 1)
after the length and the width are doubled
p2=2(2l+2w)
we will take 2 common factor out of the bracket
p2=2(2(l+w))
then from equation1
p2=2p1
then the answer is the choice number c

creativ13 [48]3 years ago

6 0

The perimeter will grow by a factor of 2, so C is the correct answer.

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Write 0.0007654 * 10^0 in scientific notation, then state the order of magnitude for it.

Bas_tet [7]

remember that to put a number in scientific notation is necessary to have the first digit of the number different to 0, so

$0.0007654\cdot10^0=7.654\cdot10^{-4}$

to calculate the order of magnitude, if the number is greater than 3.16, we assume it as a 10, so in this case as 7.654 > 3.16 we get that the order is