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2 years ago

It 3x - 2 = 7, then 3x = 9 is an example of the ?

Mathematics

1 answer:

vova2212 [387]2 years ago

3 0

Answer:

Addition Property of Equality

Step-by-step explanation:

So we had:

$3x-2=7$

And then we got:

$3x=9$

We did this by adding 2 to both sides of the equation. When we added 2, the left side cancelled and the right side equated to 9:

$(3x-2)+2=(7)+2\\3x=9$

Since we added 2 to both sides, this is an example of the addition property of equality.

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2 years ago

Given {27,15,3,-9,...} find a11

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3 years ago

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Help please i don’t know how to do it

nekit [7.7K]

Answer:

x + 3y = 15

Step-by-step explanation:

Line is passing through the points $(3, \:4) = (x_1,\:y_1)\:and\: (9, 2)=(x_2,\:y_2)$

Slope of line (m)= (2 - 4)/(9 - 3) = -2/6 = -1/3

Equation of line in point-slope form is given as:

$y-y_1 =m(x-x_1)$

Plugging the values of $x_1,\: y_1\: and \: m$ in the above equation we find:

$y-4 =-\frac{1}{3}(x-3)$

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2 years ago

G(x)=−2(x+1)(x+7) find the zeros

Makovka662 [10]

When finding zeros, the function has to equal zero. In other words, G(x) = 0.

For three multiplied parts to equal to zero, at least one has to be zero. -2 ≠ 0, but (x+1) or (x+7) can.

So you can equate each of those to zero and find out what the zeros are.

x+1=0
x=-1

x+7=0
x=-7

Thus the answer
x = -1 or -7

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3 years ago