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3 years ago

5

Multiply 4x(-3x - 5)

2 answers:

Scilla [17]3 years ago

6 0

Using the distributive property the product is -12x-20. To distribute you take the numbers and or variables outside of the paranthesis and multiply it by each one in the parenthesis such that 4x is multiplied by -3x getting -12x and multiplying 4x by -5 and the product is -20x and all together the answer is -12x-20

STALIN [3.7K]3 years ago

5 0

To solve this you distribute. Si multiply 4x and -3x to get -12x^2. Then multiply 4x and -5 to get -20x. Put those to answers together to get your final answer which is -12x^2-20x.

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Given f(x) = 3x-1 and g(x) - 2x-3, for which value of x does g(x) = f(2)?

sineoko [7]

Answer:

$x = 4$

Step-by-step explanation:

$f(2) = 3 \times 2 - 1 = 5 \\ g(x) = 5\Leftrightarrow 2x - 3 = 5\Leftrightarrow 2x = 8\Leftrightarrow x = 4$

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2 years ago

Eleven increased by three times a number equals 68) Write an equation for this situation and then find the

lubasha [3.4K]

Answer:

11+3x=68

x=19

Step-by-step explanation:

11+3x=68 is your equation.

subtract 11 from both side to get 3x alone

3x=68-11

3x=57

divide 3 from both sides to get x alone

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3 years ago

5(x+y)-3(x-y) A. 2x B. 2x+2y C. 2x+8y D. 8x+8y

uysha [10]

The answer is 2x+8y Or C

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3 0

3 years ago

I’m confused on this one

Ghella [55]

In a parallelogram, the opposite angles will be congruent to each other.

In this parallelogram, angles B and C are congruent, and angles A and D are congruent.

We will work on angles B and C first. Set the two angles to equal each other:

$12x + 6 = 6x + 66$

Subtract 6 from both sides:

$12x = 6x + 60$

Subtract 6x from both sides:

$6x = 60$

Divide both sides by 6 to get x by itself:

$\boxed{x = 10}$

x will equal 10.

Set angles A and D to equal each other:

$54 = 3y$

Divide both sides by 3 to get y by itself:

$\boxed{y = 18}$

y will equal 18.

The x and y values that make this quadrilateral a parallelogram will be x = 10, and y = 18.

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Anuta_ua [19.1K]

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Therefore, the total number of coins that Erica will have in her possession after buying "n" coins from the coin show will be 6+n.

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3 years ago