The expression given is
The sum of the expression will be,
The sum will be
Decimal form: -2.6666..
Fraction form: -2 2/3
Answer: 7 π r² + π r³
Explanation:
1) The general formula for the volumen, V, of a cylinder with radius r and height h is:
V = π r² h
2) Now you have the condition that the height is 7 inches greater than the radius, that is:
h = 7 + r
3) Replace h with its expression
V = π r² (7 + r)
4) Expand the product (use distributive property):
V = π (7r²) + π r³ = 7 π r² + π r³
Answer: 7 π r² + π r³
Answer:
b) Commutative property is true for subtraction of Rational numbers
Step-by-step explanation:
- Option B is incorrect.
- Commutative property is not true for subtraction of Rational numbers .
Selling 90 would reach her goal of $135 so she would need to sell 91 to exceed her goal
135/1.5=90 so 91*1.5=136.5
