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Normal Egg
Member Lvl: 8
Egg Points: 14178
Posts: 1079
Posted: Jun 13, 2008 1:59 a.m. - Subject: Semester exam
I need help. I need someone to correct my quiz for me. SO just look at all my answers and tell me which are wrong please. The answer to the question will be in the line below it. And just skip the questions that have information missing.
Question 1 (Multiple Choice Worth 1 points)
The daily rainfall during two April weeks was: 1, 0.5, 0.3, 0, 0 ,0, 1.2, 3, 0, 1.1, 0.7, 2, 1.3, 2 inches. What was the mean rainfall during the two weeks?
0 in.
0.9 in.
1.3 in.
0.85 in.
Question 2 (Multiple Choice Worth 1 points)
The daily rainfall during a two week period in April was: 1, 0.5, 0.3, 0, 0 ,0, 1.2, 3, 0, 1.1, 0.7, 2, 1.3, 2 inches. What was the mode during this two week period?
0
0.9
1
0.85
Question 3 (Multiple Choice Worth 1 points)
The daily rainfall during two April weeks was: 1, 0.5, 0.3, 0, 0 ,0, 1.2, 3, 0, 1.1, 0.7, 2, 1.3, 2 inches. What was the median during the two week period?
0
0.94
1
0.85
Question 5 (Multiple Choice Worth 1 points)
We perform the experiment "Toss two dice". What is the probability of the event "no 3 appears on either face"?
10/36
11/36
1/36
25/36
Question 6 (Fill-In-The-Blank Worth 1 points)
There are 52 cards in a deck. There are 4 tens. What is the probability that if you cut the deck, you’ll get a ten? Express your answer as a fraction with no spaces. Reduce the fraction to its simplest form.
Answer for Blank 1:
Question 7 (Fill-In-The-Blank Worth 1 points)
There are 6 numbers on a normal dice. What is the probability that if you roll the dice, you’ll get a 3? Express your answer as a fraction with no spaces. Reduce the fraction to its simplest form.
Answer for Blank 1:
Question 8 (Fill-In-The-Blank Worth 1 points)
There are 6 numbers on a normal dice. What is the probability that if you roll the dice, you’ll get a 5 or a 6? Express your answer as a fraction with no spaces. Reduce the fraction to its simplest form.
Answer for Blank 1:
Question 10 (Multiple Choice Worth 1 points)
The area of a circle is approximately 3.14 time the radius squared. Which of the following expressions is a correct way to write this, if the radius is x?
x(3.14)^2
3.14x^2
(3.14x)^2
2(3.14)x
Question 14 (Fill-In-The-Blank Worth 1 points)
A farmer has a rectangular field which measures 100 feet for the length and w feet for the width. If the perimeter is the sum of all four sides of the field, what is an expression for the perimeter of the field? Simplify.
Answer for Blank 1:
Question 15 (Fill-In-The-Blank Worth 1 points)
Simplify. You may use the properties to help. When you type your answer, do not space between numbers and symbols.
5x + 2y - 3x + y
Answer for Blank 1:
Question 17 (Fill-In-The-Blank Worth 1 points)
Simplify. You may use the properties to help. When you type your answer, do not space between numbers and symbols.
(-5a)(3b)(2c)
Answer for Blank 1:
Question 18 (Fill-In-The-Blank Worth 1 points)
Simplify. You may use the properties to help. When you type your answer, do not space between numbers and symbols.
12(5c - 3)
Answer for Blank 1:
Question 19 (Fill-In-The-Blank Worth 1 points)
Simplify. You may use the properties to help. When you type your answer, do not space between numbers and symbols.
5(2m + 6n - 3n)
Answer for Blank 1:
Question 27 (Multiple Choice Worth 1 points)
The proper sequence to use in solving 3x - 2 = 60 is:
Divide by 3. Add 2.
Add 2. Divide by 3.
Multiply by 3. Subtract 2.
Subtract 2. Multiply by 3.
Divide by 3, add 2--------------------------------------------------------------------------------
Question 28 (Fill-In-The-Blank Worth 1 points)
12.9 = X + 7.1 Solve for the variable. Write the answer only, do not type in X= form.
Answer for Blank 1:
Question 34 (Fill-In-The-Blank Worth 1 points)
Solve the equation shown for y. Your answer should be in y = mx + b form. 4x - 2y = 10
Answer for Blank 1:
Question 38 (Multiple Choice Worth 1 points)
When solving a system of equations, you are finding the ________.
place where the slope rises.
place where the slope runs.
intersection point.
Where the slope runs--------------------------------------------------------------------------------
Question 39 (Multiple Choice Worth 1 points)
Solve the following system of linear equations
3x + 2y = 10
2x + 3y = 15/2
No solution
y = (-3/2)x + 5
x = 3, y = -1/2
x = 3, y = 1/2
Question 40 (Fill-In-The-Blank Worth 1 points)
Rewrite using scientific notation:
32,000
Be sure to use the ^ symbol to express your exponents.
Answer for Blank 1:
Question 49 (Fill-In-The-Blank Worth 1 points)
A card is drawn at random from the cards shown below. Find the probability of drawing a A. P(A) = _______. Write your answer in fraction form (i.e., 1/2).
'The Overlord' Egg Moderator
Member Lvl: 77
Egg Points: 1015058
Posts: 6258
Posted: Jun 13, 2008 4:14 p.m. - Subject:
These are all the ones I found were wrong
#09) 21
#10) 3.14x^2
#13) (5^2)-a difference=subtraction not division
#14) (100+100)+(w+w)=200+2w
#15) 2x+3y
#16) Additive Identity
#18) 60c-36
#19) 10m-15n
#21) I don’t see an expression listed. Check that problem again
#22) 25
#24) x=12
#26) x=30
#27) Add 2. Divide by 3
#29) I see no graph
#30) m>9
#32) x>-7
#33) x>6
#34) y=2x-5
#35) FALSE
#36) there is no graph but use this chart: http://www.mathsisfun.com/definitions/quadrant-graph-.html #37) y=-1/2x-7/2 the solution can be found here: http://www.webmath.com/equline1.html #38) intersection point
#39) x=3, y=1/2
#40) 3.2x10^4
#41) 4.3x10^-3
#42) 1412.32
#46) 5
#47) 6
#49) l see no diagram
#50) I see no graph
You have some issues with Order of Operations (aka PEMDAS). Review that section.
