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shepuryov [24]
3 years ago
6

Y = −3x x + y = −4 Solution system

Mathematics
1 answer:
Verizon [17]3 years ago
7 0

Answer:

Step-by-step explanation:

Y = - 3x. Equation 1

x + y = - 4 equation 2

Putting value of y

x + (-3x) = - 4

x - 3x = - 4

-2x = - 4

x = - 4/-2 = 2

Putting value of x in the equation 1

Y = - 3(2)

Y = - 6

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If f(x) varies directly with x and f(x) = 4 when x = 12, then what is the value of f(x) when x = 60?
ANTONII [103]
ANSWER

f(60)=3\times60=180

EXPLANATION
We were given that
f(x)
varies directly as
x.

We can write this mathematically as,

f(x) \propto \: x.

This implies that,

f(x) = kx
where k is the constant of variation.

f(4)=4k

This implies that,

4k=12

k = 3

The equation becomes

f(x)=3x

When x=60

f(60)=3\times60=180
6 0
3 years ago
What happens when y = -f(-x)?
IgorLugansk [536]

Answer:

It's a reflection over the x axis.

Step-by-step explanation:

Idk I googled it.

3 0
3 years ago
Can someone please explain to me how to find the value of m? thanks<br>-10 = -10 + 7m
GarryVolchara [31]
                                        -10  =  -10  +  7m

Add  10  to each side:      0  =          7m

Divide each side by  7 :    0  =          m


Please take a second and just LOOK at the equation you started with.
It says: 

--  You have this number '-10' . 

--  Your number  -10  is going to be exactly the same size
     after you add 7 of something to it.

The ONLY way that could happen is if the 'something' is 'nothing' .

       ' m '  must be nothing.
8 0
4 years ago
Read 2 more answers
Artie Works at Arby's. Last week he worked 22 hours. He makes $12.25 an hour. What was Artie's Gross Pay?
Arturiano [62]

Answer:

Idk

Step-by-step explanation:

8 0
3 years ago
The volume of a cone is 37x3 cubic units and its height is x units.
Alla [95]

Answer:

  6x

Step-by-step explanation:

The formula for the volume of a cone is ...

  V = (π/3)r²h

Filling in the given values and solving for r, we find ...

  37x³ = (π/3)r²x

  (3·37/π)x² = r² . . . . . . . . divide by the coefficient of r²

  x√35.3324 ≈ r ≈ 5.94x

The closest answer choice is 6x.

5 0
4 years ago
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