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Mila [183]
2 years ago
10

Can someone help me with this please

Mathematics
1 answer:
stellarik [79]2 years ago
7 0

Ok so we'll  go ahead and solve for y first -  we just need to get it alone on one side of the equal sign

Step 1: subtract 2x from each side

2x - 7y - 2x = 19 - 2x

This cancels out the 2x on the left, giving us

-7y = 19 - 2x

Step 2: divide both sides by -7

\frac{-7y}{-7} = \frac{19}{-7} + \frac{-2x}{-7}

This gives us

y = -19/7 + 2x/7

That should be your answer for the first question. Now solving the next parts are easy. All you need to do is plug in x.

When x = -3

y = -19/7 + 2x/7

y = -19/7 + 2(-3)/7

y = -19/7 - 6/7

y = -25/7


When x = 0

y = -19/7 + 2x/7

y = -19/7 + 2(0)/7

y = -19/7


When x = 3

y = -19/7 + 2x/7

y = -19/7 + 2(3)/7

y = -19/7 + 6/7

y = -13/7


Hope that helps! Feel free to ask if I can help with anything else :)

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The answer is 2,254!
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The cost of an limited edition figurine starts at $255 and it increases in value by 8% each year. What is the growth or decay ra
3241004551 [841]

Answer:

Growth rate = 8% = 0.08

Initial value (Po) = $255

F(t) = Po* e^rt

F(t) = $412.09897

Step-by-step explanation:

Given that:

Initial cost = $255

Rate of increase per year (r) = 8% = 0.08

Growth rate :

Final amount = Initial amount * (1 + rate)^time

Growth rate = 8% = 0.08

Initial value (Po) = $255

Exponential model for the cost :

F(t) = Initial value * e^(rate * time)

F(t) = Po* e^rt

Value after 6 years :

F(t) = Po* e^rt

t = 6

F(t) = 255 * e^(0.08*6)

F(t) = 255 * 1.6160744

F(t) = $412.09897

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2 years ago
What is the slope of the line that passes through the points (1,7) and (3,1)
Vera_Pavlovna [14]
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Therefore, the slope of the line that passes through these points is -3.
3 0
3 years ago
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frutty [35]

Answer:

See below

Step-by-step explanation:

Think: They want us to make a box-o-gram (histogram and box-whisker-plot combo).

Identify: They gave us the information we need and we know that Alaska is the largest state. We will make the box-o-gram after ordering the data appropriately.

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Least: 198

Greatest: 284,332

Q1: 30,123 (Got this by adding the two numbers of the upper half of data and dividing by 2)

Median/mean: 100,233.2 (Average of the data)

Q3: 202,112.3 (Rounded. Got this by adding the two numbers of the middle half of data and dividing by 2)

Answer:

A: 198

B: 30,123

C: 100,233.2

D: 202,112.3

E: 284,332

Yes, this makes sense since the data on the box-o-gram fall within the data given in the chart at the top of the worksheet.

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