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Firlakuza [10]
3 years ago
15

Emily wants to find out if the carpool line around her school causes too much traffic on neighborhood roads. which is a valid sa

mple for her survey? 25 teachers at the school 25 families living near the school 25 students waiting for carpool rides 25 parents of students who ride the bus to and from school
Mathematics
2 answers:
ivanzaharov [21]3 years ago
4 0
25 families living near her school
Arada [10]3 years ago
3 0

Answer:

Emily wants to find out if the carpool line around her school causes too much traffic on neighborhood roads.The valid sample of the survey is

As the problem is faced by the one of the member of the school , and most of the members would nod this.

As, teacher being the most respected person in that colony, and if they are honest ,

The survey of 25 teachers at the school , will give the best possible result.

But,the better result is given by, 25 members located around that area, because if there is a problem with carpooling, most of the members around that area will be mostly affected by this.And the best solution is to take their  opinion.

So, Option (B)  25 families living near the school , looks best options among the given option provided.

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lesya [120]
15 is the missing number
4 0
2 years ago
Calculate the average rate of change of f(x) = 1 x - x2 - 2 for 3 ≤ x ≤ 6. A) -163 18 B) -18 163 C) 163 18 D) 18 163
larisa86 [58]
To solve this we are going to use the average rate of change formula: A(x)= \frac{f(b)-f(a)}{b-a}
where
A(x) is the average rate of change of the function
f(a) is the position function evaluated at a
f(b) is the position function evaluated at b
a is the first point in the interval
b is the second point in the interval

We can infer for our problem that the first point is 3 and the second point is 6, so a=3 and b=6. Lets replace those values in our formula:
A(x)= \frac{f(b)-f(a)}{b-a}
A(x)= \frac{f(6)-f(3)}{6-3}
A(x)= \frac{6-6^2-2-(3-3^2-2)}{3}
A(x)= \frac{-32-(-8)}{3}
A(x)= \frac{-32+8}{3}
A(x)= \frac{-24}{3}
A(x)=-8

We can conclude that the average rate of change of the function f(x) = 1 x - x2 - 2 for <span>3 ≤ x ≤ 6 is -8</span>
3 0
3 years ago
Read 2 more answers
An instructor makes $15 more per hour than an assistant. If the combined hourly wage of the instructor and assistant is $65, wha
mezya [45]
X= assistant's wage
x+15= instructor's wage

Add their wages set equal to $65

x + (x + 15)= 65
combine like terms

2x + 15= 65
subtract 15 from both sides

2x= 50
divide both sides by 2

x= $25 assistant's wage

x+15= 25 + 15= $40 instructor's wage


ANSWER: (C) $25 hourly wage of assistant

Hope this helps! :)
7 0
2 years ago
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Finger [1]

Answer: 16 miles is the total

Step-by-step explanation:

12 = 3x/4. Or 12/x : 3/4

12/3 = 4. 4×4=16

6 0
2 years ago
Which equation represents a line which is parallel to the line 7y - 4x = -14?
iVinArrow [24]
Answer: Any line with a slope of 4/7 and a y-intercept that is NOT -2

You should first turn the equation into y intercept form:
7y - 4x = -14; Add 4x from both sides
7y = 4x - 14; divide 7 from both sides
y = 4/7x - 2

Since you did not include choices, the answer will be the line with the slope 4/7 and without the y-intercept -2, because lines that are parallel will always have the same slope.

Example Answers: y = 4/7x + 2, y= 4/7x - 4
y = 4/7x + 10

4 0
2 years ago
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