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Leya [2.2K]
3 years ago
8

X2-7x-18÷x2+8x+12 what is it in lowest terms

Mathematics
1 answer:
Eddi Din [679]3 years ago
5 0

\dfrac{x^2-7x-18}{x^2+8x+12}=\dfrac{x^2+2x-9x-18}{x^2+6x+2x+12}=\dfrac{x(x+2)-9(x+2)}{x(x+6)+2(x+6)}\\\\=\dfrac{(x+2)(x-9)}{(x+6)(x+2)}=\dfrac{x-9}{x+6}

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Learn with an example
Yuki888 [10]

Answer:

128.00

Step-by-step explanation:

7%x100=$21.40. Add go $107.00+21.40=the total cost. $128.40

8 0
4 years ago
PLEASE HELP and if you can please explain how you got your answer ty
sergey [27]

Answer:

A) Neither

Step-by-step explanation:

If two lines have same slope then they are parallel lines

If slope of line1* slope of line 2 = -1

The the two lines are perpendicular

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What is the value of w?
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4 years ago
The scale on a map reads 3⁄4 inches = 60 miles. If two cities are 2 1⁄2 inches apart on the map, find the actual distance betwee
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8 0
3 years ago
The cost of renting a bus for a field trip was split evenly among 20 students. At the last minute, 10 more students joined the t
dexar [7]

By solving a linear equation, we will see that the total cost for renting the bus is $90.

<h3>What was the total cost of renting the bus, in dollars?</h3>

Let's say that the total cost is C.

When there are 20 students, each student should pay:

p = C/20

When the other 10 students are added (for a total of 30) each student pays:

p' = C/30.

We know that the cost for each of the original 20 students decreased by $1.50, so:

p' = p - $1.50

Then we have 3 equations to work with:

p = C/20

p' = C/30.

p' = p - $1.50

Now we can replace the first and second equations into the third one:

C/30 = C/20 - $1.50

Now we can solve this linear equation for C:

C/20 - C/30 = $1.50

C*( 1/20 - 1/30) = $1.50

C*(30/600 - 20/600) = $1.50

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C = 60*$1.50 = $90

So the total cost for renting the bus is $90.

If you want to learn more about linear equations:

brainly.com/question/1884491

#SPJ1

4 0
2 years ago
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