The city council wants to find out if city residents would be willing to pay higher taxes for improvements to the city's parks. Which sampling procedure is most likely to give an unbiased report of the residents' opinions?

A.
The council randomly surveys people from a list of city residents.

B.
The council surveys a random selection of visitors to the city's parks.

C.
The council does a random survey of parents of children playing in the city's parks.

D.
The council randomly surveys employees of the city's parks department.

Answers

Answer 1

Answer: the answer would be a

Answer 2

Answer: A. The council randomly surveys People from a list of city residents

Related Questions

a stained glass window is shaped like a semicircle. the bottom edge of the window is 36inches long. what is the area of the stained glass window? round your answer to the nearest hundreth

Answers

The formula for the area of a semicircle is equivalent to the area if it were a circle divided by 2. Since the bottom edge of the window is 36 inches long, this means that its diameter is also 36 inches long. This gives an area of 508.94 square inches.

The solution is:

A = Acircle/2 = pi*r^2/2 = pi*(18)^2/2 = 508.94 in^2

Eight times a number increased by 9 is the same as 15 more than 7 times the number. Find the number.

Answers

Haven translated the word problem into an algebraic expression, the unknown number is 6.

Let the number be n.

In this exercise, you're required to find an unknown number by writing an algebraic expression for the word problem and solve for the unknown number.

Translating the word problem into an algebraic expression, we have;

Eight times a number increased by 9:

$8n + 9$ ....equation 1.

15 more than 7 times the number:

$7n + 15$ ....equation 2.

Next, we would equate the two equations since we were told that they are the same.

$8n + 9 = 7n + 15\n\n8n - 7n = 15 - 9\n\nn = 6$

Therefore, the unknown number is 6.

Find more information: brainly.com/question/596290

Answer:

the number is 6

Step-by-step explanation:

8x+9=15+7x

8x-7x+9=15+7x-7x

x+9=15

x+9-9=15-9

x=6

If 2a - 8 = 4 and 3b - 8 = 10, what is the value of a + b?

Answers

A+B=22 is your answer

What is the value of the 8 in 2,983,785

Answers

The value of 8 is in the tens place

The value of 8 is in the ten thousands place

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the number be represented as A

Now , the value of A = 2,983,785

Let the tens place be represented as a

Let the ten thousands place be represented as b

Now , the first number 8 is in the tens place , so a = 8 x 10 = 80

The second number 8 is in the ten thousands place , so b = 8 x 10000 = 80,000

Hence , the value of number 8 is in tens and ten thousands place

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the value is ten hundred

Solve using quadratic formula x^2+8x=7

Answers

For this case we have the following quadratic equation:

$x ^ 2 + 8x = 7\nx ^ 2 + 8x-7 = 0$

Where:

$a = 1\nb = 8\nc = -7$

We find the solution by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting the values we have:

$x = \frac {-8 \pm \sqrt {8 ^ 2-4 (1) (- 7)}} {2 (1)}\nx = \frac {-8 \pm \sqrt {64 + 28}} {2}\nx = \frac {-8 \pm \sqrt {92}} {2}\nx = \frac {-8 \pm \sqrt {2 ^ 2 * 23}} {2}\nx = \frac {-8 \pm2 \sqrt {23}} {2}\nx = -4 \pm \sqrt {23}$

Thus, we have two roots:

$x_ {1} = - 4+ \sqrt {23}\nx_ {2} = - 4- \sqrt {23}$

Answer:

$x_ {1} = - 4+ \sqrt {23}\nx_ {2} = - 4- \sqrt {23}$

Tracy is running in a 5.25km race on Saturday. a marathon is approximately 42km.
how many times as long as Tracy's race is a marathon.

Answers

how amny times more is marathon than tracy's race
tracy t imes x=42
5.25 times x=42
divide both side by 5.25 (since 5.25/5.25=1)
x=8

answe ris 8 times

Answer:

x-8

Step-by-step explanation:

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