2. 4 times the sum of a and b (1 point)
4a + b
4 + a + b
4ab
4(a + b)
3. 7 less than 2 times a number (1 point)
7 鈥?2n
鈥? 鈥?2n
2n 鈥?7
鈥?n + 7
4. 鈥? times the quantity q minus 3
(1 point)
鈥?q 鈥?3
q(鈥? 鈥?3)
鈥?(q 鈥?3)
5. the quotient of 6 times a number and 16 (1 point)
96x
6. An equilateral triangle has three sides of equal length. What is the equation for the perimeter, or the distance around the sides, of an equilateral triangle if P = perimeter and s = length of a side? (1 point)
s = 3P
P = 3s
P = 3 + s
P = 3 (s + s + s)
7. The temperature on a summer afternoon is 85掳F. Define a variable and write an expression to find the temperature after it changes. Then evaluate your expression for a decrease of 11掳F. (1 point)
Let c = the change in temperature
11 + c
11 + (鈥?5) = 96
Let c = the change in temperature
85 + c
85 + (鈥?1) = 74
Let c = the change in temperature
11 鈥?c
11 鈥?(鈥?5) = 74
Let c = the change in temperature
85 鈥?c
85 鈥?(鈥?1) = 96
8. The total cost to rent a rowboat is $18 times the number of hours the boat is used. Write an equation to model this situation if c = total cost and h = number of hours. (1 point)
c = 18h
c 鈥?18 = h
h = 18c
c =
9. How can you tell the difference between finding the opposite of a number and finding its absolute value? (1 point)
There is no difference.
The absolute value of a number is always positive, and the opposite of a number is always negative.
Finding the absolute value changes the sign of the number, but the opposite of a number is always positive.
The absolute value is always positive, but finding the opposite of a number changes the sign of the number.
10. You can use the formula to convert temperature in degrees Fahrenheit, F, to temperature in degrees Celsius, C. What is 62掳F in degrees Celsius? Round your answer to the nearest tenth. (1 point)
30掳C
16.7掳C
52.2掳C
2.4掳C
11. Evaluate for a = 鈥? and b = 鈥?. (1 point)
12
3
鈥?2
12. Evaluate |鈥搙 鈥?2y| for x = 鈥? and y = 3. (1 point)
4
8
鈥?
鈥?
13. Simplify 1.7x + 6.5y 鈥?4y + 2.5x 鈥?y.
(1 point)
4.2x + 1.5y
4.2x 鈥?1.5y
1.5x + 4.2y
1.5x 鈥?4.2y
14. Simplify 7(2x 鈥?3) using the Distributive Property. (1 point)
14x 鈥?3
14x 鈥?21
鈥?4x + 3
鈥?4x 鈥?21
15. A mountain climber ascends a mountain to its peak. The peak is 12,740 ft above sea level. Then the climber descends 200 ft to meet a fellow climber. Find the climber's elevation above sea level after meeting the other climber. (1 point)
12,540 ft
鈥?2,540 ft
10,740 ft
12,940 ft
For questions 16鈥?7, determine if the sequence is arithmetic or geometric. Then find the eighth term in the sequence.
16. 8, 11, 14 ... (1 point)
arithmetic; 29
arithmetic; 32
geometric; 29
geometric; 32
17. 鈥?, 鈥?, 鈥?2, ... (1 point)
arithmetic; 鈥?84
arithmetic; 鈥?68
geometric; 鈥?84
geometric; 鈥?68
Short Answer
Your teacher will grade your responses to ensure you receive proper credit for your answers.
For questions 18鈥?1, show each step as you simplify.
When submitting an answer in the form of an exponent, use a caret (^) to indicate the power. For example, 53 would be written as 5^3.
When submitting an answer in the form of a fraction, use a forward slash (/) to separate the numerator and denominator. For example, one-half would be written as 1/2.
18.
(3 points)
19. 3.7 鈥?1.8 鈥?3.67 + 4.4 鈥?1.34 (3 points)
20. 鈥?4
(3 points)
21. 13[62 梅 (52 鈥?42) + 9]
(4 points)
22. Evaluate the formula for B = 9 and h = 32 in.
(3 points)
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Yes No
PLZZ I NEED ALGEBRA HELP?
I'm not sure you're asking for help... It looks like you're asking for someone to do your homework for you...
PLZZ I NEED ALGEBRA HELP?
WOW i would understand if u asked 4 1 answer because u were stuk but u wrote dwn all ur homework... !!! u wnt learn if you dnt try 2 do it on yor own
This looks like a review for a unit test. My advice: Form a study group
Do your damn homework, and if somebody needs help in this section they would ask at least a question that he actually needs help in...not questions of their homework :)
