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katrin [286]
2 years ago
11

If y=3x - 5, find the value of y when x = -1yn

Mathematics
1 answer:
kupik [55]2 years ago
6 0

Answer:

y = 3x - 5 \\ x =  - y \\ substitute \:  - y \: in \: the \: place \: of \: x \\ y =  - 3y - 5 \\ y + 3y = 5 \\ 4y = 5 \\ y =  \frac{5}{4}

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Answer:

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Step-by-step explanation:

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2 years ago
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Shera is building a cabinet she is making wooden braces for the corners of the cabinet. What is the surface area
MA_775_DIABLO [31]
The correct answer for the question that is being presented above is this one: "28 in^2." 

We have to get the individual area of each surface.
A1 = 1*3*2 = 6
A2 = 1*3*2 = 6
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A4 = 2*3*2 = 12
Area = A1 + A2 + A3 + A4 
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7 0
3 years ago
What is the point that passes through the line Y-5=-3(x-4)
ioda
The point that passes through the line Y-5=-3(x-4) is (-4,7). You are very welcome.
5 0
3 years ago
You stand 100’ from the base of a tower. The tower is 1,058’ tall. What is the angle from where you are standing to the top of t
hodyreva [135]

Answer: 85°


Step-by-step explanation:

Trig functions are remembered by


SOD CAD TOA,


sin = opposite / distance, cos = adjacent / distance, and tan = opposite / adjacent.


Here we have the adjacent side = 100, opposite side = 1058. The tower would fall over if it weren't vertical, and we assume the area is flat and level. So tangent of the answer is 10.58.


We need the angle whose tangent is 10.58.

On Android calculator you swipe left to get the trig functions, tap INV, if RAD is showing tap it to change it to DEG, and tap tan⁻¹. Swipe right and you see tan⁻¹(. Enter 10.58 and the result shows 84.6005606. If it shows 1.47655833 tap the RAD in upper left to change to DEG.

8 0
3 years ago
Quick problem to check!
Andrew [12]

To find the rate of change, also known as the slope, we can use the slope formula with these two given points.

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Point 2: (50, 40)

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15 / 30

0.5

The rate of change of this function is $0.50 / lb.

Hope this helps!! :)

6 0
3 years ago
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