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3 years ago

For each expression, write an equivalent expression by applying the distributive

Mathematics

1 answer:

Semenov [28]3 years ago

7 0

The answer is 2x-10.

(x-5)2
=(x+-5)(2)
=(x)(2)+(-5)(2)
=2x-10

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justin is 10 years less than half his father's age. if justin is 12 years old, how old is his father?

postnew [5]

Make an equation:

J = 1/2F - 10

Where 'J' represents Justin's age and 'F' represents his Father's age.

Plug in 12 for J:

12 = 1/2F - 10

Add 10 to both sides:

22 = 1/2F

Divide 1/2 to both sides or multiply by its reciprocal, 2:

F = 44

5 0

4 years ago

Read 2 more answers

-1589 equals x - 798

Alex_Xolod [135]

-791=x is your answer, you get this by adding 798 to -1589 to balance the
Equation

5 0

3 years ago

Hello! I was wornding if you can help me with this problem 5 + 2/3x = 1/2x -1/4

Natalija [7]

Answer:

x = - 63/2

Step-by-step explanation:

5 0

3 years ago

Subtract: (2x^2-7x+5)-(-6x^2-4x-2)

Wittaler [7]

Answer:

$\large\boxed{D.\ 8x^2-3x+7}$

Step-by-step explanation:

$(2x^2-7x+5)-(-6x^2-4x-2)\\\\=2x^2-7x+5-(-6x^2)-(-4x)-(-2)\\\\=2x^2-7x+5+6x^2+4x+2\qquad\text{combine like terms}\\\\=(2x^2+6x^2)+(-7x+4x)+(5+2)\\\\=8x^2-3x+7$

6 0

4 years ago

Read 2 more answers

Can anybody help me with this?

Alex787 [66]

Answer:

Step-by-step explanation:

The rate of change for the table is found using the slope formula. The rate of change for the linear function is the coefficient of x.

<h3>table</h3>

The slope formula tells us the rate of change is ...

m = (y2 -y1)/(x2 -x1)

m = (-9 -(-10))/(-1 -(-4)) = 1/3

<h3>equation</h3>

The coefficient of x in the equations of the offered answer choices are 1/4 and 6.

<h3>comparison</h3>

The relations between the various slopes are ...

1/4 < 1/3 < 6

That is, the equation with a slope of 1/4 has a rate of change less than that of the function represented by the table:

y = 1/4x +4 because ... table of values is 1/3

6 0

2 years ago