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Burka [1]
3 years ago
12

Solve each equation by graphing 2x + 3y 2x - y

Mathematics
1 answer:
Mila [183]3 years ago
3 0

Answer:

x=0

y=0

Step-by-step explanation:

2x+3y -----eqn1

2x-y----eqn2

From eqn 2

2x-y

2x =y

Eqn 1 2x+3(2x)

2x+6x = 0

8x = 0

x=0/8

x = 0

Since 2x = y

2(0) =y

y =0

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an object is launched at 25 m/s from a height of 80 m. the equation for the height (h) in terms of time (t) is given by h(t)=4.9
Aneli [31]

There must be minus sign with 4.9 .

h(t) = -4.9t^2+25t +80

The given equation is the equation of parabola , which is maximum at its vertex, and the formula of vertex is

t=-\frac{b}{2a}=-\frac{25}{2(-4.9)}  = 2.55 seconds

So the height is maximum at t=2.55 seconds and to find the maximum height , we need to plug 2.55 for t , that is

h(2.55)=-4.9(2.55)^2+25(2.55)+80 = Approx \ 112 \ m

So the maximum height is 112 m .

3 0
3 years ago
All of the following equations have the same solution except _____.
soldi70 [24.7K]
A because 3m + 2 doesn’t match -3m +2. All the -3m +2 equations are the same except they are in a different order.
3 0
3 years ago
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What is the result of isolating y^2 in the equation below (x+6)^2+y^2=1​
katrin [286]

Answer:

(x+6)^2 + y^2 = 1 then isolate y^2  by subtracting (x +6)^2 from both sides, we get

               

                y^2 = 1 - (x + 6)^2

expanding the right side, we now have

                y^2 = 1-(x^2 + 12x +36)

          y^2 = 1-x^2-12x -36

          y^2 = -x^2 -12x - 35  therefore the solution is  choice A

Step-by-step explanation:

4 0
3 years ago
Can someone please help me with this
Murljashka [212]
The answer is:  [C]:  "  2/3, 6/9, 8/12 " .
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4 0
4 years ago
Read 2 more answers
What formula to use <br> Answer
77julia77 [94]

Check the picture below.

now, since we know what "f" is, let us use the CNT triangle with the small COR one.


\bf \cfrac{36+f+30}{36}=\cfrac{48+32+g}{48}\implies \cfrac{36+24+30}{36}=\cfrac{48+32+g}{48} \\\\\\ \cfrac{90}{36}=\cfrac{80+g}{48}\implies \cfrac{5}{2}=\cfrac{80+g}{48}\implies 240=160+2g \\\\\\ 80=2g\implies \cfrac{80}{2}=g\implies 40=g

4 0
4 years ago
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