Answer:
7) 9.135x10^10
8) 3.428x10^-2
9) 2.5x10^-7
10) 4x10^10
Step-by-step explanation:
You’re only supposed to have one number to the left of the decimal point in scientific notation.
7) 9.135x10^10
8) 3.428x10^-2
9) 2.5x10^-7
10) 4x10^10
A = 57
45 + 12 = 57
57 - (-12) = 45
The equation for area of a triangle is A= 1/2bh so a=1/2(12cm)(9.6cm)
