Simplify completely x^2+7x-30 divided by x+10

x-3

Step-by-step explanation:

1) look at the top equation and factor:

Factors of -30: 10,-3    6,-5   15,-2  -3,10  -6,5   -15,2

Factors adding up to 7: 10,-3

So x^2+10x-3x-30

X(x+10)      -3(x+10)

(x-3)(x+10)

2) bring in the denominator terms

(x+10)'s cancel each other out

And your left with (x-3)

Hope this helps!

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true