Real number system
Which number is an irrational number
A. sqrt 17
B. - 10
C. 5,299
D. - sqrt 9
A. sqrt 17
The stock price of a company was $56. The stock price fell to $1.20. Which is the percent decrease in this stock price?
A. 114%
B. 98%
C. 46%
D. 27%
B. 98%
If the legs of a right tringle are 4 cm. and 5 cm, what is the length of the hypotenuse? (rounded to the nearest tenths place)
6.4 cm
An (independent or dependent) event impacts the probability from event 1 to event 2?
Dependent
What value of y makes the equation true? 3(2y + 3) = 9y - 15
a) y = 6
b) y = 8
c) y = -2
d) y = -5
b) y = 8
Which value could be represented as an integer?
A. sqrt 145
B. -1/6
C. -sqrt10
D. -sqrt361
D.
-sqrt361
Adam got a raise, and his hourly wage increased from $12 to $15. What is the percent increase?
25% increase
A right tringle has a hypotenuse that is 10cm long, and a leg that is 8cm long. What is the length of the missing leg? (rounded to the nearest tenths place)
6cm
Which of the following situations describes an independent event?
a) choosing seven numbers from 0-9, which cannot be repeated
b) pulling three pieces of candy from a bag, one at a time, without replacement
c) tossing a coin and rolling a die
Kylie paid a total of $300 to exercise at a gym. The initial membership fee was $75. Her gym dues were $25 a month. How many months did Kylie go to the gym?
9 months
To which subset(s) of the real number system does -6 belong?
A. Rational, integer, whole and natural
B. Rational, integer, whole
C. Rational, integer
D. Rational
C. Rational, integer
At a coffeeshop, the price of a cup of coffee increased from $1.20 to $1.44. What is the percent increase in the cost of the coffee?
20% increase
A 12 foot ladder is leaning on a building. If the base of the ladder is placed 5 feet from the building, approximately how high does the ladder reach? (rounded to the nearest whole number)
11 feet
A box contains five cards lettered A, A, B, C, D. If one card is selected at random from the box and NOT replaced, what is the probability that Jill will draw an A and then a C?
a) 1/25
b) 1/20
c) 1/10
d) 2/25
c) 1/10
What is the solution to (n-2)/5 +5 = 7
n = 12
Which number does not belong to the set of irrational numbers?
A. sqrt11
B. 0.222222.....
C. -sqrt3
D. 8.1222333344444....
B. 0.2222222.....
An airplane leaves Richmond on a Monday morning carrying 263 passengers to New York City. On Tuesday morning, there are 154 passengers flying from Richmond to New York City. What is the percent decrease in the number of passengers rounded to the nearest whole number?
41% decrease
If the diagonal of a TV screen is 20 inches and the width is 16 inches, what is the height of the TV screen? (round to the nearest tenths place)
12 inches
Lawrence has these tiles that are the same size and shape.
- 6 blue
- 9 green
- 10 orange
What is the probability that Lawrence will randomly select an orange tile, not replace it, then randomly select a blue tile?
(Leave your answer as a percentage, rounded to the nearest tenth's place)
10%
Max has a $100 gift card to Autobahn Indoor Speedway. He must pay a one-time annual race fee of $7.95 and then each race is $19.99. How many races can he afford?
4 races
Which statement is true?
A. Some integers are irrational numbers.
B. Every terminating decimal is an integer.
C. Every integer is a whole number.
D. All integers are rational numbers.
D. All integers are rational numbers
A shirt was originally priced at $48. It went on sale for $38.40. What was the percent that the shirt was discounted?
20% discount
Which of the following side lengths could represent a right triangle?
a) 1, 1, 2
b) 8, 15, 17
c) 1, 2, 3
d) 20, 25, 30
A bag contains 3 blue marbles and 2 yellow marbles.
Fill in the blank: One example of independent events using this bag of marbles is randomly selecting a blue marble, ____________________, and then randomly selecting another blue marble.
a) replacing it
b) not replacing it
a) replacing it
Find the value of n. 12(4/3n+1/4)=67
n=4