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FromTheMoon [43]
3 years ago
12

For the following, write an equivalent expression in standard form: (5x2 + 6x - 2) + 4x (3x – 7).

Mathematics
1 answer:
Roman55 [17]3 years ago
7 0

Answer:

17x^2 -22x -2

Step-by-step explanation:

  1. 5x^2 +6x -2 +4x (3x-7)
  2. 5x^2 +6x -2 +12x^2 -28x
  3. 17x^2 +6x -2 -28x
  4. Answer: 17x^2 -22x -2

Just so you know when I put (^) the number after it is a exponent.

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A marker is randomly selected from a drawer that contains 20 green, 44 orange, and 30 blue markers. Which statement is true?.
Pavlova-9 [17]

Answer:

See below.

Step-by-step explanation:

Total number of markers: 20 + 44 + 30 = 94

p(green) = 20/94 = 0.213

p(orange) = 44/94 = 0.468

p(blue) = 30/94 = 0.319

Choose the correct answer by comparing your choices with the 3 probabilities above.

8 0
2 years ago
Given the function g(x) = 6(4)x, Section A is from x = 0 to x = 1 and Section B is from x = 2 to x = 3.
Mademuasel [1]

We are given the function:

g(x) = 6 (4)^x

 

Part A.

To get the average rate of change, we use the formula:

average rate of change = [g(x2) – g(x1)] / (x2 – x1)

 

Section A:

average rate of change = [6 (4)^1 – 6 (4)^0] / (1 – 0) = 18

 

Section B:

average rate of change = [6 (4)^3 – 6 (4)^2] / (3 – 2) = 288

 

Part B.

288 / 18 = 16

Therefore the average rate of change of Section B is 16 times greater than in Section A.

 

<span>The average rate of change is greater between x = 2 to x = 3 than between x = 1 and x = 0 because an exponential function's rate of change increases with increasing x (not constant).</span>

8 0
3 years ago
1. Which equation is the inverse of y = 2x2 + 25 ?​
Alborosie
Imma go with F just because I think it’s right
3 0
3 years ago
Type the correct answer in each box. Use numerals instead of words. Solve the equation by completing the square. x2 + 20x + 82 =
VikaD [51]
7=x^2+20x+82
0=x^2+20x+75

What adds to 20 and multiplies to 75? 5 and 15.

x^2+5x+15x+75
x(x+5) 15(x+5)
(x+15) (x+5)

Zeroes are x= -5 and x= -15
5 0
3 years ago
Solve each eqaution justify each epaution 20-3h=2
OleMash [197]
20-3h=2=>3h=20-2=18=>h=18/3=6
5 0
3 years ago
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