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2 years ago

Identify the equivalent expression -4(b+2) - 3b

Mathematics

1 answer:

Romashka-Z-Leto [24]2 years ago

8 0

Answer:

-7b - 8

Step-by-step explanation:

-4(b + 2) - 3b < distribute -4 into b +2

-4b - 8 - 3b < combine like terms

-4b - 3b = -7b

-7b - 8 is our solution

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What's the solution to -182=2(1+2x)-2

MatroZZZ [7]

-182=2(1+2x)-2

2*1=2
2*2x=4x

-182=4x+2-2
-182=4x
-45.5=x

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3 years ago

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In the diagram below, xy and yz are tangent to O. What is the measure of angle y

Tatiana [17]

If we draw in OX, OY, OZ we have two congruent right triangles, right angles at the tangent points.

We know XOZ is 132 degrees, which is the meaning of the arc measure

So YOX is half that, 66 degrees.

That leaves 180 - 90 - 66 = 24 degrees for OYX

Angle Y aka XYZ is double that, 48 degrees.

Answer: C

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3 years ago

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3.) Consider the following set of equations:

oee [108]

Yes, the two lines are parallel which makes No solution the correct answer.

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3 years ago

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Find x. <br> a) 100<br> b) 50<br> c) 80<br> d) 130

Sati [7]

Answer:

I think it's D

Step-by-step explanation:

3 0

3 years ago

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Which equation shows the relationship in the table below X 3, 5, 8, 11 Y 7 ,11, 17, 23 a y=2xb y=x+4 c y=2x+1 d y=2x+4

ladessa [460]

ANSWER

$c)\text{ }y=2x+1$

EXPLANATION

We want to find the equation for the relationship shown in the table.

The relationship shown in the table represents a linear relationship. The general form of a linear equation is:

$y=mx+b$

where m = slope

b = y-intercept

To find the slope of the equation, apply the formula:

$m=\frac{y_2-y_1}{x_2-x_1}$

where (x1, y1) and (x2, y2) are two sets of values from the table.

Let us take (3, 7) and (5, 11) as (x1, y1) and (x2, y2)

Hence, the slope of the equation is:

$\begin{gathered} m=\frac{11-7}{5-3}=\frac{4}{2} \\ m=2 \end{gathered}$

Now, to find the equation of the line, apply the point-slope method:

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

Therefore, the equation that shows the relationship in the table is:

$\begin{gathered} y-7=2(x-3) \\ y-7=2x-6 \\ y=2x-6+7 \\ y=2x+1 \end{gathered}$

The correct option is option C.

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1 year ago