Write in algebraic expression
B. 5r3 − 4r2 + 14r − 16
C. 5r3 − 6r − 16
D. 5r3 + 10r − 16
The product is: 5r³ -34r² + 44r -16
An expression is a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.)
Given:
(5r − 4)(r² − 6r + 4)
= 5r*r² - 5r *6r + 5r * 4 - 4r²+ 24r -16
= 5r³ - 30r² + 20r -4r² + 24r - 16
= 5r³ -34r² + 44r -16
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Answer:
a
Step-by-step explanation:
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Answer:
128
Step-by-step explanation:
Method A.
The volume of the prism is 2 cubic units.
Each cube has side length of 1/4 unit.
The volume of each cube is (1/4)^3 cubic unit.
The volume of each cube is 1/64 cubic unit.
To find the number of cubes that fit in the prism, we divide the volume of the prism by the volume of one cube.
(2 cubic units)/(1/64 cubic units) =
= 2/(1/64)
= 2 * 64
= 128
Method B.
Imagine that the prism has side lengths 1 unit, 1 unit, and 2 units (which does result in a 2 cubic unit volume.) Since each cube has side length 1/4 unit, then you can fit 4 cubes by 4 cubes by 8 cubes in the prism. Then the number of cubes is: 4 * 4 * 8 = 128
Answer:
128 cubes.
Step-by-step explanation:
Volume of each cube = (1/4)^3 = 1/64 cubic units.
Number of cubes that will fill the prism
= 2 / 1/64
= 2*42
= 128 answer