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3 years ago

11

What kind of sampling technique is used when a customer service representative asks if you would like to take a brief survey aft

er the call?

1 answer:

Tems11 [23]3 years ago

8 0

Normaly you would call customer service for serveys and they dont ask for them

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Please please help me with this question please now and show your steps

sattari [20]

Answer:

$y = {x}^{2} - 8x + 7 \\ a = 1 \: and \: b = - 8 \\ the \: line \: of \: symmetry \: \\ x = \frac{ - b}{2a} = \frac{8}{2} \\ x = 4(line \: of \: symmetry) \\ y = {4}^{2} - 8(4) + 7 \\ = 16 + 32 + 7 = y = 55 \\ vertix \: is \: (4 ,55) \\ y = {0}^{2} - 8(0) + 7 \\ y = 7 \\ 0 = {x}^{2} - 8x + 7 \\ (x - 7)(x - 1) = 0$

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3 years ago

The school store sells 4 pencils for $0.50. At this rate, what is the cost in dollars) of 10 pencils?

Pachacha [2.7K]

Answer:

1.25

Step-by-step explanation:

10/4=2.5

2.5*0.5

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3 years ago

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Evaluate the function <br><br> f(x) = 3x^2 + 4x + 19<br><br> Find f(-7)

yanalaym [24]

Answer:

Step-by-step explanation:

3

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4

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19

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f

(

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1 year ago

I need the value of x. 10x + 4 - 2x = 6x + 9 + 7

erastova [34]

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Step-by-step explanation:

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what is the exact value of cos(c+d), given sin c=24/25 for c in quadrant 2 and cos d=-3/4 for d in quadrant 3

maksim [4K]

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1 3/100

21-24squareroot7/100

21

=24squareroot7/100

Step-by-step explanation:

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