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Phoenix [80]
3 years ago
5

How to solve 12x=-24

Mathematics
2 answers:
solniwko [45]3 years ago
5 0

Answer:

Step-by-step explanation:-24 divided by 12 gives the answer of what x is. because division is the inverse of multiplication

lara [203]3 years ago
4 0
X= 2

12*2= 24
I think thats the answer
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You paint of a wall in hour. At that rate, how long will it take you to paint one wall?
zysi [14]

Answer:

an hour....

Step-by-step explanation:

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Prove that<br> cos^4∆ - sin^4∆ = 2cos^2∆ - 1
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Write an equation in point-slope form of the line through point J(4,1) with slope -4.
Nimfa-mama [501]
Point slope form
y - y1 = m(x - x1)

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Hope this helps!
4 0
3 years ago
Read 2 more answers
A model of a skyscraper uses the scale of 2 inches = 45 feet. If the actual skyscraper is 992 feet tall, how tall is the model?
kvasek [131]

Answer:

44.08 or 44.1

Step-by-step explanation:

OK so the basics of this question is that for every 45 feet of the actual skyscraper we have 2 inches in the model. The first thing we do is divide 992/45 which equals 22.04. Know if this was 1 inch for every 45 feet we would be done however we need to multiply this number by 2 to get our answer so 22.04*2 =44.08

8 0
3 years ago
Can you help with #21 please. I will mark Brainliest.​
Leokris [45]

Answer:

A, C, E

Step-by-step explanation:

By analyzing the graph, we can see that the roots are -2 and -4.

We now want to find all equations of the form (x-(-2))(x-(-4))=(x+2)(x+4)=0.

This immediately gives C as 1 answer.

We can expand our equation to find other possible solutions!

By the FOIL method: (x+2)(x+4)=(x)(x)+(2)(x)+(4)(x)+(2)(4)=x^2+6x+8=0

We can then divide both sides of the equation to find that -x^2-6x-8=0, so A is another answer.

We can complete the square on x^2+6x+8 to find the last possible solution.

x^2+6x+8=x^2+6x+9-9+8=x^2+6x+9-1=(x+3)^2-1=0.

We can then multiply both sides of the equation by 4 to find that 4(x+3)^2-4=0, so E is the last answer.

The proof that the other answers don't work is left as an exercise.

So, the answers are A, C, and E, and we're done!

7 0
2 years ago
Read 2 more answers
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