3 years ago

Find the product: (2x –2)(x –1)a.2x2 + 4x -2b.2x2 + 4x + 2c.2x2 -4x + 2d.2x2+ 2

Mathematics

1 answer:

lesya [120]3 years ago

3 0

FOIL:

First:

2x^2

Outside:

-2x

Inside:

-2x

Last:

Put it together:

2x^2 -2x -2x +2

combine like terms:

2x^2 - 4x +2

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Two boys who live 14 miles apart start at noon to walk toward each other at rates of 3 mph and 4 mph respectively. In how many h

aniked [119]

Since you have the answers given, just track their walking.
After one hour, one guy has covered 3mi and the other 4mi, which is in total 7, not 14
After 2 hours, one guy has covered 6mi and the other 8mi, which is 14mi

The algebraic way would be:
3x +4x = 14 *x being the hour
7x = 14
x =2

6 0

3 years ago

Read 2 more answers

Pls be right will give brainliest :3

Vedmedyk [2.9K]

A:5

I hope this helps you
Good luck on the rest :)

7 0

2 years ago

Find the area of the following circle. (Round answer to the nearest whole number.) Circumference = 280 cm. (Hint: Find r from C

Marrrta [24]

Find r :
C=2πr
280=2(3.14)r
r=280/2(3.14)
r=44.6cm

find area :
A=πr²
A=3.14(44.6)²
A=6246 cm²

Answer : 4)6,246

4 0