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4 years ago

6

The solutions to a quadratic equation are x = 2 and x = 7. If k is a nonzero constant, which of the following must be equal to t

he quadratic equation?

2 answers:

slava [35]4 years ago

8 0

Hello :
<span>the following must be equal to the quadratic equation is m
k (x-2)(x-7) .... k </span><span>≠ 0</span>

lora16 [44]4 years ago

8 0

Answer:

A

Step-by-step explanation:

On edg just took the test

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Listed below are prices in dollars for one night at different hotels in a certain region. Find the range, variance, and standar

Vanyuwa [196]

Answer:

Range = $115

Variance = $1915.2857

Standard deviation = $43.764

Step-by-step explanation:

Given the data:

234 160 119 131 218 207 146 141

Arranging in ascending order :

119, 131, 141, 146, 160, 207, 218, 234

The range = maximum - minimum

The range = 234 - 119 = 115

The variance :

Σ(x - mean)²/n-1

The mean = Σx / n

The mean = 1356 / 8 = 169.5

Variance :

Σ(x - mean)² = (119-169.5)² + (131-169.5)² + (141-169.5)² + (146-169.5)² + (160-169.5)² + (207-169.5)² + (218-169.5)² + (234-169.5)² = 13407

n - 1 = 8 - 1 = 7

Variance = 13407 / 7 = 1915.2857

Standard deviation = √variance

Standard deviation = √1915.2857

Standard deviation = $43.764

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3 years ago

Eric has 4 bags of marbles and 6 single marbles how many marbles does eric have

matrenka [14]

Eric has 46 total marbles (4*10)+6

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3 years ago

What is the slope of the line passing through the following points (-2,5) & (1,-7)?

igor_vitrenko [27]

Answer:

-12/3

Step-by-step explanation:

The formula to get slope is m=y1-y2 and x1-x2

REMEMBER SLOPE IS Y/X NOT X/Y

7 0

3 years ago

NEED HELP ASAP PLEASE

kati45 [8]

Answer: its (0,2/3)

Step-by-step explanation: i say this because 2/3 equal 0.6 so 0.6 will be on the y-axis and 0 will be on the x-axis, this will equal a line that meats up wit R and is parallel to PQ. I hope this helps.

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4 years ago

saveliy_v [14]

9514 1404 393

Answer:

reflected across the x-axis
vertically stretched by a factor of 2
translated down 7 units

Step-by-step explanation:

When the function y = x³ is transformed to y = -2x -7, there are three transformations involved. The multiplication by 2 causes a vertical stretch by a factor of 2. The leading minus sign causes the function to be reflected over the x-axis, and the addition of -7 causes the graph to be translated down 7 units.

4 0

3 years ago

Read 2 more answers