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Trava [24]
3 years ago
12

Factorise x^2 + x - 12

Mathematics
2 answers:
mihalych1998 [28]3 years ago
8 0
(x-3)(x+4). -3,4 multiply to -12, and add to get 1
Nat2105 [25]3 years ago
7 0

Step-by-step explanation:

<h2> x²+x-12</h2><h2> x²+4x-3x-12</h2><h2> x(x-4)-3(x-4)</h2><h2> (x-3)(x-4)</h2>

hope you undesrstood

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Solve the system by substitution.
Iteru [2.4K]

Answer:

I gave you most of the answer. I'll let you check my work and find the point using the solution.

Step-by-step explanation:

The first thing we do is we divide by negative one in the first equation to get

y = -x.

-3x + 3y = -36

Plug in y = -x and get

-3x + 3(-x) = -36

= -3x - 3x = -36

This equals -6x = -36

divide both sides by -6 and you get 6. 6 is your x value

Plug 6 back in to the second equation.

-3x + 3y = -36

-3(6) + 3y = -36

-18 + 3y = -36

3y = -18

y = -6

3 0
3 years ago
HELPPPPP PLEASEEEE!! ASAP please and thank you!
storchak [24]
To solve this problem we can find the area of the whole rectangle, then find the area of the smaller white rectangle inside the whole rectangle. Lastly, we can subtract the area of the smaller rectangle from the area of the whole rectangle which leaves us with the area of the shaded region.

Area of whole rectangle = length x width
= (3x + 6) (2x + 4)
= 6x squared + 24x + 24

Area of small rectangle = length x width
= (x-3) (x - 1)
= x squared - 4x + 3

Area of shaded region = area of whole rectangle - area of small rectangle
= 6x squared + 24x + 24 - x squared + 4x - 3
= 5x squared + 28x + 21
4 0
3 years ago
Can someone help please
galben [10]

Answer:

(3, -2)

Step-by-step explanation:

after flipping the triangle over the y axis the new point A would be at (1,1)

then following the translation the point would move right twice and down twice leaving the new point A at (3, -2)

7 0
3 years ago
Solve for x.
riadik2000 [5.3K]
I got a different answer..
and i don't see it as one of your choices, also your question is confusing since you're repeating it .-.
But anyways i got \frac{6}{11} ~or~ \frac{36}{66}
3 0
3 years ago
Order the numbers 0.64, <br>2/3 , 65%, and <br>7/10 from least to greatest. (3 points)
olga55 [171]

Answer:

.64 <  65 % < 2/3 < 7/10

Step-by-step explanation:

To order all the numbers from least to greatest, but all the numbers in the same form (fraction, decimal, or percent).  I will put them all in decimal form so that I can compare them.

0.64,   .64

2/3 ,   =.666666repeating

65% = 65/100 = .65

7/10 = .7


.64< .65<.6666repeating<.7

but we need to put them in their original form

.64 <  65 % < 2/3 < 7/10

6 0
3 years ago
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