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lara [203]
3 years ago
13

An elementary school teacher wants to know if problems on a math worksheet are too difficult for students. She solves the first

and last problem in every row and finds two problems that would be difficult for her students. What is the sample in this situation?
a. every problem on the worksheet
b. every problem that she did not solve
c. the two problems that would be difficult for her students
d. the first and last problem in every row
Mathematics
1 answer:
lina2011 [118]3 years ago
5 0
D. the first and last problem in every row
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Elza [17]

1. A pentagonal pyramid has 6 faces, 10 edges, and 6 vertices

2. The polygons you would need to construct a pentagonal pyramid are a triangular or rectangular pyramid. Or probably just a triangle and a pentagon (I’m not sure, hope I helped)

7 0
4 years ago
Find the solution to the system of equations: x + 3y = 7
tigry1 [53]

Answer:

(-2,3)

Step-by-step explanation:

Doing it the way you did and working out the problem you substituted 3 into, x+3(3)=7, 3(3) is 9 and then you subtract 9 from both sides.

7-9=-2

x=-2

Then all you have to do is put it into ordered pairs.

(x,y)

(-2,3)

3 0
3 years ago
Find the mean absolute deviation (MAD) of the data in the dot plot below.
kipiarov [429]

Answer: 2 grams

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
An education association wants to rent a cotton candy machine for a carnival. There is a deposit to rent it plus an additional $
Vanyuwa [196]

Answer:

  • rate of change: $8 per hour; the per-hour rental charge
  • initial value: $75; the deposit on the machine

Step-by-step explanation:

The cost to rent the machine is given as ...

  total cost = deposit + ($8 /hour)×(number of hours)

The cost for 5 hours is given ans $115, so we have ...

  115 = deposit + 8(5)

  75 = deposit . . . . . . . . subtract 40

__

The "rate of change" is given as $8 per hour, the hourly rental charge.

The "initial value" is called <em>the deposit</em>. It is found to be $75.

8 0
2 years ago
Help and explain please and ty &lt;3333
Anni [7]

Answer:

A. 693

Step-by-step explanation:

The question is asking you to input 7 into both functions and then multiply them together.

First insert 7 into f(x) = 7 + 2x,   7 times 2 is 14, plus 7 = 21

do the same with g(x) = 5x - 2,   5 times 7 is 35, minus 2 = 33

fg(7) is saying to multiply fg together as a variable next to another variable does. leaving the answer as 693.  

6 0
3 years ago
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