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Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

7 0

Answer:

see below

Step-by-step explanation:

Use the distributive property:

(y^2 +3y +7)(8y^2 +y +1)

= y^2(8y^2 +y +1) +3y(8y^2 +y +1) +7(8y^2 +y +1)

= 8y^4 +y^3 +y^2 + 24y^3 +3y^2 +3y + 56y^2 +7y +7

= 8y^4 +y^3(1 +24) +y^2(1 +3 +56) +y(3 +7) +7

= 8y^4 +25y^3 +60y^2 +10y +7 . . . . . matches the last choice

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Find the volume of the cube

miskamm [114]

Answer:

The volume of cube is 125 cm³.

Step-by-step explanation:

Given that the formule of volume of cube is, V = length×width×height. Cube is a 3D form of square, so the sides of the cube are all the same. You have to substitute 5 into the formula,

Let length be 5 cm,

Let width be 5 cm,

Let height be 5 cm,

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7 0

3 years ago

Read 2 more answers

Which of the following is the graph of the inequality y< -2x + 3?

zaharov [31]

Answer:

look at the photo

Step-by-step explanation:

Since the inequality is already written in y=mx+b, you can easily graph the line. +3 is the y intercept, so one point would be (0,3). -2 resembles the slope, so diagonally to the left, you would go up 2 and across 1. Also, since the sign is "<" you would graph with a dotted line. Then to know which side to shade, I always use the coordinate (0,0). I plug in 0 for both x and y to see if (0,0) satisfies the inequality. In this case it does, so you would shade on the side where (0,0) is located.