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3 years ago

Is y=2x(x-2) a quadratic function????

1 answer:

5 0

The graph opens downward, so the vertex is the maximum point of the parabola. Example: The vertex of the parabola y = -(x + 9)2 + 4 is (-9, 4). The graph opens downward, so the vertex is the maximum point of the parabola.
...
If the value of "a" is positive, the parabola will open upward.

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Your friend is looking at laptops for college, and is comparing the different

Dominik [7]

Answer:

B. h = 7.4 inches

Step-by-step explanation:

height of the laptop screen = h

d = 12.1 in.

w = 9.6 in.

We are given the formula,

d = √(w² + h²)

Plug in the values and solve for h

12.1 = √(9.6² + h²)

Square both sides

12.1² = 9.6² + h²

146.41 = 92.16 + h²

146.41 - 92.16 = h²

54.25 = h²

√54.25 = h

7.4 = h (nearest tenth)

h = 7.4 inches

7 0

2 years ago

Find the <br>-5/8 -- 3/10

maw [93]

I’m not for sure of the answer but i do know that the two subtractions in the middle would turn into a + and i think you add the -5/8 + 3/10

6 0

3 years ago

EASY QUESTION!!!<br><br> 50 POINTS!!!!!

Andre45 [30]

I think it can be 605. I'm not sure exactly, but I think it is.

3 0

3 years ago

Read 2 more answers

Write as an equivalent expression: (3x+5)(2x+3)

VladimirAG [237]

Answer: 5x+8

Step-by-step explanation: You have to combine like terms.

3x+2x=5x

5+3=8

= 5x+8

4 0

3 years ago

F(x)=4x2−8x−60 f(x)=4(x2−2x−15) f(x)=4(x−5)(x+3) whts the true statement of f(x)

alukav5142 [94]

Answer: D

Step-by-step explanation:

No such thing as a vertex of a graph... Eliminate B and C. Try f(3) = 4(3-5)(3+3) is not zero eliminate A. So answer must be D. Check: f(-3) has factor -3+3 = 0. f(5) has factor 5-5 = 0.

4 0

3 years ago