Answer:
length = 5
width = 9
Step-by-step explanation:
V = lwh
let 'x' = length
let '4+x' = width
9 = height
405 = 9x(4+x)
405 = 36x + 9x²
this is a quadratic equation: 9x² + 36x - 405 = 0
factor out a 9 to get:
9(x² + 4x - 45) = 0
9(x-5)(x+9) = 0
one root is 5 and the other is -9
since distance cannot be negative we use 5 as the length and 9 is the width
Inc on (-inf,0)
Dec on (0,inf)
Answer:
The answer is B, -5 is a rational number and integer! :)
Step-by-step explanation:
Answer:
Amanda's box volume is 70 cm^3 greater than Mary's
Step-by-step explanation:
Find and then compare the volumes of the two boxes:
Amanda's: 10*10*13.5 cm^3 = 1350 cm^3
Mary's: 8*8*20 = 1280 cm^3
Amanda's box volume is 70 cm^3 greater than Mary's.
Answer:
(a) 2 3/8 cups
(b) 3-cup
Step-by-step explanation:
1 1/2 + 3/4 + 1/8
The common denominator is 8
1 4/8 + 6/8 + 1/8 = 1 11/8 = 2 3/8 cups
I choose 3-cup mixing bowl since it fits 2 3/8 cups ingredients.
