4 years ago

Give an algebraic example of the distributive property

1 answer:

3 0

A very simple example is:

$x(a+b) = (x)(a) + (x)(b) \\~\\~~~~~~~~~~~=xa+xb$

What you need to is just distribute x into the parenthesis, so once x times the first term (a) and once x times the second term (b)

I hope you got the idea

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what is the equation in slope form of the line that is parallel to the given line and passes through the point (-3,1)

viktelen [127]

Answer:

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Calculate the slope of the given line using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 2, - 4) and (x₂, y₂ ) = (2, 2) ← 2 points on the line

m = $\frac{2+4}{2+2}$ = $\frac{6}{4}$ = $\frac{3}{2}$

Parallel lines have equal slopes and using (a, b) = (- 3, 1), then

y - 1 = $\frac{3}{2}$ (x - (- 3)), that is

y - 1 = $\frac{3}{2}$ (x + 3) ← in point- slope form

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3 years ago

Find the value of x and y. y=2x and 1.85x+3.7y=12.95

Len [333]

Answer:

x=1.4 y=2.8

Step-by-step explanation:

Lets substitute y with 2x. We get: 1.85x+7.4x=12.95.

Simplifying by combining x: 9.25x=12.95

Then you just divide 12.95 by 9.25: x=1.4

Now for y. We know why is 2x so we just have to multiply x by 2: y=2x, y=2.8.

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3 years ago

Which expression is equivalent to (7-8) (78)?

Gre4nikov [31]

-78

Step-by-step explanation:

(7-8)(78)

(-1)(78)=-78

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GalinKa [24]

C will be the correct answer

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