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Lapatulllka [165]
3 years ago
11

Thank you! please help!

Mathematics
2 answers:
zvonat [6]3 years ago
7 0
The answer should be D. Y = -3x
nydimaria [60]3 years ago
5 0

Answer:

D. y = -3x

Step-by-step explanation:

Firstly, find the coordinates:

(1, -3) and (2, -6)

Just from looking at these, you can tell that the y coordinate is multiplied by negative 3 but to find it using an equation, you can use the slope formula:

\frac{y2 - y1}{x2 - x1}

Where x1 and y1 is the first set of coordinates and x2 and y2 is the second set. Simply plug the variables in:

\frac{-6 - -3}{2 - 1}

\frac{-6 + 3}{1}

\frac{-3}{1}  = -3

So the correct answer would be d.

Hope this helps!

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A field is to be fertilized at a cost of $0.07 per square yard. The rectangular part of the field is 125 yards long and the diam
RSB [31]

Answer:

Total cost is $437.92

Step-by-step explanation:

Rectangular area=125•40=5000 yd²

Two equal semicircles=one single circle

Area of circle=πr²=20²•π=400•3.14=1256 yd²

Total field area=circle+rectangle=6256yd²

Cost=area•0.07yd²=6256•0.07=437.92

7 0
3 years ago
WILL MARK BRAINLIEST!!! HELP PLEASE!! <br><br> What percent of runners ran 75 seconds or slower?
Vinil7 [7]

Answer:

16

Step-by-step explanation:

8 0
3 years ago
What is the effect on the graph of the function f(x) = x when f(x) is replaced with -1/2 f(x)?
inn [45]

Answer:

The correct option is B.

Step-by-step explanation:

The given function is

f(x)=x

The new function is

g(x)=-\frac{1}{2}f(x)

g(x)=-\frac{1}{2}x        .... (1)

It is in the form of

g(x)=mx                   .... (2)

Where, m is a constant.

If m is negative, then there is a vertical reflection over x-axis. If the constant is greater than 1, we get a vertical stretch and  if the constant is between 0 and 1, we get a vertical compression.

From (1) and (2), we get

m=-\frac{1}{2}

Since the value of m is negative and absolute value of m is between 0 and 1, therefore the graph g(x) shows the vertical reflection over x-axis and vertical compression.

Option B is correct.

4 0
3 years ago
What is the solution to the following system
Afina-wow [57]

Answer:

I belive it's B

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