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Simora [160]
3 years ago
13

Find x such that 2x^2 +2x=12

Mathematics
1 answer:
solmaris [256]3 years ago
4 0

Answer:

2 and -3

Step-by-step explanation:

2x^2=4x

4x+2x=12

6x=12

how many times does 6 go into 12?

right, 2 times!

x=2

---

2x^2+2x-12=0

x^2+x-6=0

(x+3)(x-2)=0

X=-3 and 2

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Ethan surveyed 120 registered voters at random out of a total of 12,600 registered voters in town. He asked them who they planne
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Answer:

Based on the results of the survey, the total number of registered voters expected to vote for Ms. Gibson in the upcoming election are 4725 votes

Step-by-step explanation:

Ms. Gibson has 45 votes of 120 votes

let Ms. Gibson vote of 12,600 be x

45      120

x        12600

cross multiply

120x = 45 x 12600

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3 years ago
The sine of 49° is equal to the cosine of what angle?
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4 0
3 years ago
Write the equation of the graph obtained when the graph of y=1/x is compressed vertically by a factor of 0.25, translated 4 unit
Shtirlitz [24]

Answer: The equation is y = 0.25/(x - 4) + 3

Step-by-step explanation:

If we have a function y = f(x)

A compression means that we multiply the function by a factor smaller than 1.

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y = 0.25*f(x)

a translation by A units to the right, means that we need to valuate the function in x - A.

So now we have:

y = 0.25*f(x - 4)

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Our new equation is:

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8 0
3 years ago
Read 2 more answers
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