Answer:
1.72386*10^6 km^2
Step-by-step explanation:
When I do math with scientific notation I change both to have the same exponent, then you can just do normal arithmetic. This also includes getting rid of the exponent, which I do here.
1.727*10^6 - 3140
Let's go ahead and get rid of the scientific notation for the first one. So 1.727*10^6 = 1,727,000
So now we have 1,727,000 - 3140 = 1,723,860
Since we started in scientific notation let's go back to it. 1.72386*10^6
Answer:
Mom is 40 and her daughter is 4; in eight years, mom will be 48 and her daughter will be 12.
Step-by-step explanation:
Answer:
3.38
Step-by-step explanation:
x + y + z = 16.9
x = 2y
y = z
y=y
2y (x) + y(y) + y(z) = 16.0
5y = 16.9
y = 3.38
Answer:
44%
Step-by-step explanation:
100 + 20 = 120/100
(1.2)^2=1.44
144 - 100 = 44%
Answer:
=x3+3x2−3x+4
Step-by-step explanation:
Let's simplify step-by-step.
3x2−5x+1xx2+2x+4
=3x2+−5x+x3+2x+4
Combine Like Terms:
=3x2+−5x+x3+2x+4
=(x3)+(3x2)+(−5x+2x)+(4)
=x3+3x2+−3x+4
