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3 years ago

Need help with 7 and 8

Mathematics

1 answer:

Lostsunrise [7]3 years ago

3 0

Answer:

Step-by-step explanation

7. Find the value of Y

3X+ (8Y-102)+(2Y+6)=360

3X+(8Y+2Y)-102+6=360

3X+10Y-96=360

3X+10Y=456

10Y=456-3X

Y=1/10(456-3X)

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Solve the equation for x in terms of c

Dovator [93]

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$\mathrm{Add\:}\frac{1}{4}\mathrm{\:to\:both\:sides}$

$\frac{2}{3}\left(cx+\frac{1}{2}\right)-\frac{1}{4}+\frac{1}{4}=\frac{5}{2}+\frac{1}{4}$

$\frac{2}{3}\left(cx+\frac{1}{2}\right)=\frac{11}{4}$

$\mathrm{Multiply\:both\:sides\:by\:}3$

$3\cdot \frac{2}{3}\left(cx+\frac{1}{2}\right)=\frac{11\cdot \:3}{4}$

$2cx+1=\frac{33}{4}$

$\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}$

$2cx+1-1=\frac{33}{4}-1$

$2cx=\frac{29}{4}$

$\mathrm{Divide\:both\:sides\:by\:}2c$

$x=\frac{29}{8c}$

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3 years ago

Describe the end behavior of the graph of each polynomial fiction using limits .explain your reasoning using the leading term te

masha68 [24]

Answer:

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7 0

3 years ago

What is the length of the line segment with endpoints (7,-1) and (-3,5)?

Galina-37 [17]

Formula to find the length of two endpoints: $\sqrt{(x^2-x^1)^2+(y^2-y^1)^2}$

Now, solve with the given endpoints.

$\sqrt{(x^2-x^1)^2+(y^2-y^1)^2} \\\sqrt{(-3-7)^2+(5-(-1))^2} \\\sqrt{(-10)^2 + (6)^2} \\ \sqrt{100+36}\\\sqrt{136}$

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Now, simplify using what we know about radicals.

Solution in picture.

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3 years ago

Solve for slope = 9/4, y-intercept = -4

allsm [11]

Answer:

The equation of the line with slope and y-intercept is $y=\frac{9}{4}x-4$

Step-by-step explanation:

Given that the slope is $\frac{9}{4}$ and y-intercept=-4

That is $m=\frac{9}{4}$ and c=-4

The slope intercept form is y=mx+c where m is slope and c is y-intercept

Now substitute $m=\frac{9}{4}$ and c=-4 in the above equation we get

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3 years ago

Triangle ABC is shown below:

NeX [460]

Answer:

(-1, -4)

Step-by-step explanation:

In the graph:

The reflected point is 1 unit below 0 so x = -1

The reflected point is 4 units to the left of 0 so y = -4

Since coordinates are in (x, y) the coordinates are (-1, -4)

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

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