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2 years ago

Simplify 12x + 8x - 3x

Mathematics

2 answers:

Pie2 years ago

8 0

when two numbers have the same variable, we can add and subtract just like normal numbers.

12x + 8x = 20x - 3x = 17x

nadezda [96]2 years ago

6 0

Answer:

3 12/8

Step-by-step explanation:

Hope its help

#CarryOnLearning

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Which is the graph of f(x) = (x + 3)(x - 2

yanalaym [24]

Answer:

Step-by-step explanation:

f(x) = (x + 3)(x - 2) has two zeros: One stems from (x + 3) = 0 and is (-3, 0); the other stems from (x - 2) = 0 and is (2, 0).

The axis of symmetry is a vertical line located halfway between -3 and 2:

x = -1/2.

The graph opens up because the given (x + 3)(x - 2) has a positive leading coefficient (+1).

With this information we can eliminate the last two possible answers. Note that the x-intercepts of the first graph are -3 and 2, Thus, the first graph is the correct one.

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2 years ago

Given a line with a slope of1/2 and a point(6,5) which lies on that find an equation to represent that line

kondor19780726 [428]

Answer:

The equation of the line is given as 2 y - x = 4.

Step-by-step explanation:

Here, the slope of the given line = 1/2

The point on the line is (x0,y0) = (6,5)

Now, by POINT SLOPE FORMULA:

The equation of line with (x0,y0) and slope m is written as:

(y - y0) = m (x-x0)

So, here the equation of line is given as

$( y- 5) = \frac{1}{2} (x-6)\\\implies 2( y-5) = ( x-6)\\or, 2y - 10 = x - 6\\\implies 2y - x = 4$

Hence the equation of the line is 2 y - x = 4.

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3 years ago

If EF = 2x-7, FG = 4x-20, and EG = 21, find the values of x, EF, and FG.

Serggg [28]

Given -:

EF = 2X-7

FG = 4X-20

EG = 21

FIND OUT

EF =?

FG = ?

To proof

as given in the question

we have the value of EF = 2X-7 , FG = 4X-20 and EG = 21

Thus we have

EG = EF + FG

21 = 2X-7 + 4X- 20

21 = 6x - 27

48 = 6x

x = 8

Hence proved

Now put this value

$EF = 2\times 8 - 7\\EF = 9$

Now

$FG = 4\times 8 - 20\\FG = 12$

Hence proved

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3 years ago

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STatiana [176]

Answer:

A: 11,13, 290

B: 7,24,25

Step-by-step explanation:

A &B both form a right triangle not C

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The measures of angles X and Y are the same, x degrees. The measure of angle Z is twice the measure of angle Y.

Ne4ueva [31]

Answer:

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Step-by-step explanation:

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