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3 years ago

Which graph represents the equation x=-2

Mathematics

1 answer:

mixas84 [53]3 years ago

6 0

graph c

because the graph x = -2 is a vertical line at -2 on the x axis

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2(3-x)-1.4(5-2x)=2x+5.3

Hitman42 [59]

I think the answer is : x = -5.25

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1 year ago

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The linear function graphed below represents the value of a comic book since Lucy purchased it. What was the value of the comic

zhuklara [117]

Answer:

C. $25

Step-by-step explanation:

We will find,

The slope of the function using $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$ .

Taking the points (1,40) and (2,55).

Slope = $\frac{55-40}{2-1}$

i.e. Slope = $\frac{15}{1}$

i.e. Slope = 15

Substituting the slope and point (1,40) in the equation $y=mx+b$ ,

We have, $40=15\times 1+b$

i.e. $b=40-15$

i.e. b= 25

Thus, the equation of the linear function is $y=15x+25$ .

<em>This linear function represents the cost of the comic book since Lucy purchased it, where x= years.</em>

So, the initial value of the comic book is when x= 0.

So, $y=15\times 0+25$ i.e. y= 25

Hence, the cost of the book when Lucy purchased it was $25.

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2 years ago

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Points E, D, and H are the midpoints of the sides of ΔTUV. UV=56, TV=72, and HD=56. Find HE.

natita [175]

We need a diagram to do this

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3 years ago

I really need help with this question! And I need to show work

krek1111 [17]

Answer:

x=0.25 or -1/4

Step-by-step explanation:

120x + 21 = -9

120x = -30 (-21 from both sides of equation)

x = -0.25 or -1/4 (divide 120 from both sides of equation)

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2 years ago

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Rotate this figure 270 degrees clockwise

Lemur [1.5K]

Answer:

it's the third answer

Step-by-step explanation:

360 degrees is a full circle so you subtract the 90 degrees from it and get 270. The only turn it would need to be a full 360 is 90 degrees. hope this helps

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