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3 years ago

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Question 1 of 10

1 answer:

Viktor [21]3 years ago

8 0

Answer:

4x+1

Step-by-step explanation:

Add f(x) and g(x):

3x-1+x+2

4x+1

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How do i solve this? (by factoring)<br> x(x+3)=x+8

AfilCa [17]

$\sf x\left(x+3\right)=x+8\\\\\\\\x^2+3x=x+8\\\\\\\\\sf \boxed{\sf\mathrm{Subtract\:}8\mathrm{\:from\:both\:sides}}\\\\\\\\\sf x^2+3x-8=x+8-8\\\\\\\\\sf \boxed{\sf \mathrm{Simplify}}\\\\\\\\\sf x^2+3x-8=x\\\\\\\\\boxed{\sf \mathrm{Subtract\:}x\mathrm{\:from\:both\:sides}}\\\\\\\\\sf x^2+3x-8-x=x-x\\\\\\\\\boxed{\sf \mathrm{Simplify}}\\\\\\\\\sf x^2+2x-8=0\\\\\\\\\boxed{\sf factor~ x^2+2x-8=0}\\\\\\\\\sf \left(x-2\right)\left(x+4\right)=0$

$\sf \boxed{\sf \mathrm{Using\:the\:Zero\:Factor\:Principle:\quad \:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0}\\\\\\\\\sf x-2=0\quad \mathrm{or}\quad \:x+4=0\\\\\\\\\boxed{\sf \{x=2\}}\\\\\boxed{\sf \{x=-4 \} }$

3 0

3 years ago

If Ben buys 24 items at $3 each, how much change will he receive from a $100 bill?

tensa zangetsu [6.8K]

Ben will receive $28 change from a hundred dollar bill

4 0

4 years ago

Read 2 more answers

How many sides do 1 triangle, 4 octagons, 5 dodecagons, and 4 quadrilaterals have in all?

EleoNora [17]

Answer:

3+32+60+16= 111 sides.

Step-by-step explanation:

Make sure to multiply each number of a singular shape by its number of sides then add them all together at the end :)

6 0

3 years ago

Find the slope of the line that is perpendicular to the line graphed in the figure

Margaret [11]

Answer:

- $\frac{1}{5}$

Step-by-step explanation:

Calculate the slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (0, - 4) and (x₂, y₂ ) = (1, 1) ← 2 points on the line

m = $\frac{1-(-4)}{1-0}$ = $\frac{1+4}{1}$ = 5

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{5}$

3 0

3 years ago

Plz help me fast!!!

Snezhnost [94]

72 because right number on the top of the bar is six, and 12•6=72

8 0

3 years ago