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Ostrovityanka [42]
3 years ago
14

–3(m – 2n – 4) = -9 Given the equation above, what is the value of m – 2n?

Mathematics
2 answers:
Lorico [155]3 years ago
3 0

-3(m - 2n - 4) = -9

m - 2n - 4 = -9/-3

m - 2n - 4 = 3

m - 2n = 7

vaieri [72.5K]3 years ago
3 0

Answer:

m - 2n = 7

Step-by-step explanation:

-3(m -2n - 4) = -9

Divide both sides by (-3)

m - 2n - 4 = (-9)/(-3)

m - 2n - 4 = 3

Add 4 to both sides.

m - 2n - 4  + 4 = 3 + 4

m - 2n = 7

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son4ous [18]

Answer: -6p - 78

Step-by-step explanation:

-5 (3p + 3) + 9(-7 + p)

-15p -15 - 63 + 9p

-6p-78

4 0
3 years ago
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Solve 4 + 2 sinx= 14-8 sinx for 0° ≤ x ≤ 180
Oduvanchick [21]
<h2>Answer:</h2>

<u>x= 90°</u>.

<h2>Step-by-step explanation:</h2>

<h3>1. Write the expression.</h3>

4 + 2 sin(x)= 14-8 sin(x)

<h3>2. Subtract "4" from both sides of the equation.</h3>

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<h3>3. Add "8sin(x)" to both sides of the equation.</h3>

2 sin(x)+8 sin(x)= 10-8 sin(x)+8 sin(x)\\ \\10 sin(x)= 10

<h3>4. Divide both sides by 10.</h3>

\frac{10 sin(x)}{10} = \frac{10}{10} \\ \\sin(x)=1

<h3>5. Apply the arcsin of sin^-1 to both sides of the equation.</h3>

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<h3>6. Conclude.</h3>

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3 0
1 year ago
If the vertex of a parabola is at the point (-2, 5), then the equation for the axis of symmetry for the parabola is x = -2. True
balandron [24]

Answer:

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Step-by-step explanation:

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2 years ago
Mr Lim, Mr Tan and Mr Chan have $8650 altogether. Mr Lim has $450 more than Mr Tan. Mr Chan has twice as much money as Mr Tan. H
Natalka [10]

Answer:

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Step-by-step explanation:

Given:

The total amount of money which Mr. Lim, Mr. Tan and Mr. Chan is $8650;

Mr. Lim has $450 more than what Mr. Tan has;

Mr. Chan has double the amount of money than what Mr. Tan has.

Therefore, if we assume that the amount of money Mr. Tan has as x, then...

Total money = Mr. Tan + Mr. Lim + Mr. Chan

therefore,

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I hope this helped you :)

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