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Irina18 [472]
1 year ago
5

At a large conference of teachers from a variety of subjects, a random sample of 50 mathematics teachers attending the conferenc

e was selected. Among the selected mathematics teachers, 28 percent had taken one or more courses in statistics. For which of the following populations is 28 percent a reasonable estimate of the percentage of those who have taken one or more courses in statistics?
A. All mathematics teachersB. All mathematics teachers who attended the conferenceC. All mathematics teachers who have taken one or more courses in statisticsD. All teachers who attended the conferenceE. All teachers
Mathematics
1 answer:
melamori03 [73]1 year ago
5 0

Answer:

C. All mathematics teachers who have taken one or more courses in statistics

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Tan 2° = x / 1 mile,   where x is the vertical change
0.03492 = x / 1 mile
x = 1 mile · 0.03429 = 0.03492 miles
1 mile = 5,280 feet
0.03492 · 5,280 = 184.38 ft
Answer: The vertical change is 184.38 feet 
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Your friend really wants to buy the newest, coolest cell phone which will cost him $310. He gets a job detailing cars and SUVs a
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A camera is selling for $7.50 off the regular price. It was marked down 15%. A student used the equation:
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The student should have divided the discounted amount by the percent. The percent should have been written as a decimal.

Step-by-step explanation:

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A craftsman can sell 10 jewelry sets for $500 each. He knows
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Step-by-step explanation:

Given

Craftsman sell 10 Jewelry set for $500 each

For each additional set he will decrease the price by $ 25

Suppose he sells n set over 10 set

Earning=\text{Price of each set}\times \text{no of set}

Earning =(500-25n)(10+n)

E=5000+500n-25n^2-250n

differentiate to get the maximum value

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5 0
1 year ago
If 49x2 + 28x - 10 is rewritten as p2 + 4p -10, what is p in terms of<br> p=
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Answer:

p=7x

Step-by-step explanation:

49x^[2] + 28x - 10 = p^[2] + 4p -10

This equation is in the form a^[2]x + bx + c.

<u><em>The 'c' is common for both equations, this means the 'a' and 'b' must also be common. </em></u>

There are two ways to find p: 'a' or 'b'

<u>a method</u>

49x^[2] = p^[2]

=> The square root of both sides = 7x = p

<u>b method</u>

28x = 4p

28x/4 = 4p/4

7x = p

6 0
1 year ago
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