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olya-2409 [2.1K]

3 years ago

10

Please help me solve this problem 3x+9 ?

1 answer:

maxonik [38]3 years ago

3 0

Assuming that the expression equals 0

3x+9=0

Subtract 9

3x= -9

-9/3= -3

x= -3

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sveticcg [70]

Answer:

The third choice is the one you want

Step-by-step explanation:

If we are to write the equation of a line perpendicular to WX, we first must determine what the slope of the WX is, because the line perpendicular to WX has a slope that is the flip of the slope of WX with the opposite sign. Solving for y takes care of finding the slope of WX:

2x + y = -5 so

y = -2x - 5

The slope is -2. That means that the reciprocal slope is 1/2. Using that slope along with the coordinates x = -1 and y = -2, we first write the line using point-slope form and then solve it for y. Start by filling in the m, the x value and the y value:

$y - (-2) = \frac{1}{2}(x-(-1))$

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$y+2=\frac{1}{2}(x+1)$

Distributing then gives us:

$y+2=\frac{1}{2}x+\frac{1}{2}$

And finally solving for y (I am going to express the 2 on the left as 4/2 when I move it by subtraction in order to add those fractions):

$y=\frac{1}{2}x+\frac{1}{2}-\frac{4}{2}$

And the final equation in slope-intercept form is:

$y=\frac{1}{2}x-\frac{3}{2}$

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Suzi has 5 equal bottles that are each 3/4 full of lotion. How many bottles does Suzi have if she combines all of her lotion

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The table shows a function. Is the function linear or nonlinear?

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Step-by-step explanation:

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Depreciation is the decrease or loss in value of an item due to age, wear, or market conditions. We usually consider

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Answer:

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Step-by-step explanation:

Part A) Express the value of the bulldozer, V, as a function of how many years old it is, t.

Let

V ----> the value of the bulldozer (dependent variable or output value)

t ----> the number of years (independent variable or input value)

we know that

The linear function in slope intercept form is equal to

$V(t)=mt+b$

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substitute

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2 years ago

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Answer:

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