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notka56 [123]
2 years ago
15

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

Mathematics
1 answer:
insens350 [35]2 years ago
5 0

Answer:

The x intercept  is (-5,0)

The y intercept  is (0,-3)

Step-by-step explanation:

To find the x intercept we set y=0 and solve for x

3x+5y = -15

3x+0 = -15

3x = -15

Divide by 3

3x/3 = -15/3

x = -5

The x intercept  is (-5,0)

To find the x intercept we set x=0 and solve for y

3x+5y = -15

0+5y = -15

5y = -15

Divide by 5

5y/5 = -15/5

y = -3

The y intercept  is (0,-3)


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What is the equivalent exsprssion of √54
FromTheMoon [43]

Answer:

3\sqrt{6}

Step-by-step explanation:

using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

\sqrt{54}

= \sqrt{9(6)} = \sqrt{9} × \sqrt{6} = 3\sqrt{6}


3 0
2 years ago
I really need help on these two. Its fine if you dont get both of them. i will give you 25 points
masya89 [10]

<u><em>Answer:</em></u>

He read 1/3 of the book on the second day

He didn't finish the book in two days.

<u><em>Step-by-step explanation:</em></u>

Lets find 3/5 of 5/9

If we said, find 3/5 of x, the answer would be 3/5x.

3/5*x = 3/5x

In the same way, \frac{3}{5} *\frac{5}{9} = \frac{15}{45} = \frac{1}{3}

He read 1/3 of the book on the second day

Does 5/9 + 1/3 equal to 1?

1/3 = 3/9

5/9 + 3/9 = 8/9

He didn't finish the book in two days.

Hope this helps :)

Have a nice day!

3 0
2 years ago
The owner of Darkest Tans Unlimited in a local mall is forecasting the demand for November the one new tanning booth based on th
lorasvet [3.4K]

Answer:

The forecast for November is 235 if August's forecast was 145.

Step-by-step explanation:

The formula for calculating forecast using exponential smoothing is:

F_{t} = F_{t-1}  + \alpha (A_{t-1} - F_{t-1} )

Where Ft = New month forecast

           Ft-1 = Previous month forecast

           At-1 = Previous month actual value

            α = smoothing constant

We are given F₈ = 145 (forecast for August), A₈ = 200 (Actual Value for August), α = 2, and we need to compute the forecast for November. So, We will first calculate the forecast for September then October and then November, step-by-step.

So, forecast for September is:

F₉ = F₈ + α (A₈ - F₈)

    = 145 + 2*(200-145)

    = 145 + 2*55

F₉ = 255

Then, forecast for October is:

F₁₀ = F₉ + α (A₉ - F₉)

     = 255 + 2*(220-255)

     = 255 + 2*(-35)

F₁₀ = 185

The forecast for November is:

F₁₁ = F₁₀ + α (A₁₀ - F₁₀)

    = 185 + 2*(210 - 185)

F₁₁ = 235

8 0
3 years ago
Please help me! Use the appropiate lines to solve the question 3x+1=10
lbvjy [14]

Answer:

Step-by-step explanation:

3x + 1 =  10

3x = 10 - 1

3x = 9

x = 9/3

x = 3

hope this helps

plz mark as brainliest!!!!

5 0
3 years ago
Which expression results in a rational number?
Eva8 [605]

Answer:

A

Step-by-step explanation:

It resluts in 4

3 0
3 years ago
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