emilyplays474
05.04.2021 •
Mathematics
Addition and subtraction of polynomials 1. 3ab +(- 10ab) 2. (4a - 4b) + ( 2a + 6b ) 3. (-11m + 7) - (20m - 11) 4. (2m- 2n ) -( -15 m + 10n) 5. -6xy- (-16xy) plz pa answer ASAP show solution step-by-step
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Ответ:
Step-by-step explanation:
1. 3ab +(-10ab)
-7ab
2.4a -4b
4 (a-b)
3.(-11m+7) -(20m-11)
-11m+7-20m+11
-31m+18
4.(2m-2n)-(15m+10n)
-13m-12n
5.-6xy- (-16xy)
-6xy+16xy
10xy
Ответ:
Diameter = 4 inches
Radius = diameter/2 = 4/2 = 2 inches
Area = πr^2 = π(2)^2 = 4π = 12.57 inches squared approx.