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Oxana [17]
3 years ago
9

Can someone plsss help me

Mathematics
1 answer:
balu736 [363]3 years ago
6 0

Answer:

y = -5/3 x + 40

Step-by-step explanation:

The general form is y = ax + b, where a is the slope and b is the y intercept.

So immediately you can see that b must be 40, since the line crosses the y axis at 40.

The slope can be calculated by finding two "nice" points on the line that are also grid lines.

How about (0,40) and (6, 30).

Then, calculate the slope by dividing the y difference by the x difference:

(30-40)/(6-0) = -10/6 = -5/3

So C must be the answer.

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3 years ago
Right triangle, hypotenuse =10 short= 5 what does the long leg equal
Gekata [30.6K]
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4 0
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Read 2 more answers
A car takes 54.9 seconds to travel 1 mile. How long does it take the car to travel 4.3 miles? First round to the nearest whole n
fiasKO [112]

Answer: Rounded: 236 seconds

Not rounded: 236.07 seconds

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5 0
4 years ago
Find the vertex of the graph of f(x) = x2 + 4x - 5.
Fofino [41]
You can solve this in two ways.

1. Graphical. Plot the graph for x between -5 and 1 (see attachement).
The vertex of the graph is the peak of the curve, which has the coordinates x=-2, y=-9.

2. Analytical. Calculate the derivative of the function f(x)
\frac{df}{dx}=2x+4
Solve the equation:
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will give the solution x=-2.
Replace x=-2 in the f(x) function and you'll get the value of y:
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You get the same answer: x=-2, y=-9

So the answer is
<span>B. (-2, -9)</span>

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3 years ago
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