Please help with a.

Do not use a calculator.

0.0000016

Step-by-step explanation:

(8×10^-3)×(2×10^-4)

=8×10^-3 × 2×10^-4

= (8×2) × (10^-3 × 10^-4)

=16 × 10^(-3) + (-4)

= 16 × 10^ (-3-4)

=16× 10^(-7)

= 0.0000016

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step-by-step explanation:

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.