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charle [14.2K]
3 years ago
14

WILL GIVE 100 POINTS AND BRAINLIEST FOR BEST ANSWER

Mathematics
1 answer:
coldgirl [10]3 years ago
4 0

Answer:

Step-by-step explanation:-16x^2 + 24x + 16 = 0.

A. Divide by 8:

-2x^2 + 3x + 2 = 0, A*C = -2*2 = -4 = -1 * 4. Sum = -1 + 4 = 3 = B, -2x^2 + (-x+4x) + 2 = 0,

(-2x^2-x) + (4x+2) = 0,

-x(2x+1) + 2(2x+1) = 0,

(2x+1)(-x+2) = 0, 2x+1 = 0, X = -1/2. -x+2 = 0, X = 2.

X-intercepts: (-1/2,0), (2,0).

B. Since the coefficient of x^2 is negative, the parabola opens downward. Therefore, the vertex is a maximum.

Locate the vertex: h = Xv = -B/2A = -24/-32 = 3/4, Plug 3/4 into the given Eq to find k(Yv). K = -16(3/4)^2 + 16(3/4) + 16 = 19. V(h,k) = V(3/4,19).

C. Choose 3 points above and below the vertex for graphing. Include the points calculated in part A which shows where the graph crosses the x-axis.

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Suppose you and your 4 friends (5 people) are dressing up as the 6 main characters of the first Avengers movie: Iron Man, Hulk,
Dennis_Churaev [7]

Answer:

720

Step-by-step explanation:

If every person has to choose a different character, the first person to choose a character has 6 options, the second has 5, the third has 4, the fourth has 3, and the last person has only two options. Therefore, the total number of ways you can do this if all 5 people dress up as a different character is:

n=6*5*4*3*2\\n=720

There are 720 ways.

5 0
3 years ago
It costs $22 to enter an amusement park and $0.50 to ride a ride. You have $23. Write an equation that represents the number r o
bogdanovich [222]

Answer:

21.50 + 0.25r = 22.25

Step-by-step explanation:

Thats ur equationnn

8 0
2 years ago
4<br> divide by 2<br> and add 1<br> Input<br> Output<br> 0<br> 2<br> -8<br> 100
alexandr402 [8]

Answer:

3

Step-by-step explanation:

Given:

4 Divide by 2 and add 1

Computation;

[4 / 2] + 1

Using BODMAS rule

⇒ [4 / 2] + 1

⇒ 2 + 1

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5 0
3 years ago
To solve a one-step equation, you must _____<br> the variable.
krek1111 [17]

Answer:

Isolate.

Step-by-step explanation:

To solve a one-step equation, you must isolate the variable.

For example,

3x = 9.

You must isolate x, which just means you have to get x by itself.

Divide by 3 on both sides to get x by itself.

x = 3.

The answer to this question is isolate.

8 0
2 years ago
Determine if the following statements are sometimes,never, or always true
spayn [35]
1. always true
2. always true? (not 100% sure)
3. sometimes true
4. i don’t know, sorry
hope this helps a little bit! sorry i couldn’t help with all of them
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