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twan6425
16.10.2019 •
Mathematics
2)
17)
find the lcm of 8 and 12.
a) 12
b) 18
c) 24
d) 36
18)
the price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?
a) m + 0.51
b) m + 1.51
c) m + 1.63
d) m + 1.75
19)
consider the net of a square box where each unit on the coordinate plane represents four feet. if a sheet of plywood measures 4 ft x 8 ft, how many sheets of plywood will a carpenter need to build the box?
a) 3
b) 4
c) 5
d) 6
20)
what is the gcf of 32 and 56?
a) 2
b) 4
c) 8
d) 14
21)
which expression is equal to (7 × 2) × 2?
a) (7 + 2) × 2
b) (2 × 2) + 7
c) 7 × (2 × 2)
d) (2 × 7) + (2 × 2)
22)
the histograms show the test results from two different tests in mrs. lofton's class. how many students are in mrs. lofton's class?
a) 14
b) 16
c) 28
d) 32
23)
test scores
88
94
77
92
99
80
87
consider clint's science test scores for the semester. find the interquartile range of the scores.
a) 4
b) 7
c) 12
d) 14
24)
given that the area of a trapezoid is given by the formula a =
1
2
h(b1 + b2), what is the value of a if h = 2 cm, b1 = 3, and b2 = 4?
a) 3
1
2
cm2
b) 7 cm2
c) 14 cm2
d) 28 cm2
25)
2.3,
12
5
,
5
2
, 2.2,
21
10
put the numbers in order from least to greatest.
a) 2.3,
12
5
,
5
2
, 2.2,
21
10
b)
21
10
, 2.2, 2.3,
5
2
,
12
5
c)
21
10
, 2.2, 2.3,
12
5
,
5
2
d)
21
10
,
12
5
, 2.2, 2.3,
5
2
26)
mary sells lemonade, and she donates 10 cents from every cup she sells to charity. the cups of lemonade sell for 45 cents. one day she made $17.10. how much money did she give to charity that day?
a) $1.60
b) $2.60
c) $3.20
d) $3.80
27)
which equation demonstrates the distributive property?
a) 36 + 9 = 45
b) 36 + 9 = 3(12 + 3)
c) 36 x 9 = 9 x 36
d) (12 + 3)3 = 3(12 + 3)
28)
the right rectangular prism is packed with unit cubes of the appropriate unit fraction edge lengths. find the volume of the right rectangular prism in centimeters. (figure not to scale)
a) 100 cm3
b) 105 cm3
c) 108
1
3
cm3
d) 133
1
3
cm3
29)
on the line plot, matt recorded the number of pets at each household on his street. how many households have exactly two pets?
a) 7
b) 8
c) 9
d) 10
30)
the dot plot shows the number of songs in a play list. determine the range of the data set.
a) 11
b) 22
c) 25
d) 50
31)
which expression demonstrates the distributive property applied to the expression 4(x + y)?
a) 4x + y
b) 4x + 4y
c) 4(y + x)
d) 4 × (y × x)
32)
which number line shows the correct order of the numbers?
a)
b)
c)
d)
33)
the length of the base of a right triangle is 32 centimeters, and the height is 10 centimeters. what is the area of the triangle?
a) 42 square centimeters
b) 74 square centimeters
c) 160 square centimeters
d) 320 square centimeters
34)
determine the absolute value of -11.
a) -11
b) 0
c) ±11
d) 11
35)
a 300-page book is 10 inches long, 8 inches wide, and
3
4
inches tall. what is the volume of 100 pages of the book?
a) 20 in.3.
b) 60 in.3
c) 188 in.3.
d) 6,000 in.3.
36)
e (-2,3)
f (0,4)
g (2,3)
rhombus efgh has the coordinates shown.
find the coordinates of point h.
a) (0,2)
b) (0,3)
c) (1,1)
d) (2,0)
37)
which quadrant is (a, b) in if a is negative and b is positive?
a) i.
b) ii.
c) iii.
d) iv.
38)
travis, the manager at a small music store, tracked one week of cd sales of different types of music. the bar graph shown here provides the number of cds sold of each type of music.
travis predicts that the next cd sold will be pop music.
which statement justifies travis's prediction?
a) every person bought a pop cd.
b) more than half of all cd sales were pop cds.
c) people bought rock cds just as much as pop cds.
d) people bought pop cds more than any other type of cd.
39)
a medical researcher studies the correlation between the number of hours spent at office jobs and the incidence of chronic back ache.
which statement best describes why the investigation is an observational study?
a) the researcher does not use a control group.
b) the researcher does not intervene to vary conditions.
c) it is not possible to obtain a random sample of office workers.
d) it is not possible to establish a cause-effect relation between the variables.
40)
if a bag contains 18 red, 6 yellow, 24 blue, and 8 white balloons, what is the part-to-whole ratio of white balloons to all balloons?
a) 1: 5
b) 1: 6
c) 1: 7
d) 1: 8
41)
given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is r' if
c
c'
= 0.75 and d = 6.0?
a) 2
b) 4
c) 8
d) 12
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Ответ:
The LCM is 2³ · 3 = 24 (Answer C)
Step-by-step explanation:
The LCM of 8 and 12 is what? Factor 8 and factor 12 and look for common factors:
2³ and 2² · 3. Note that 2² is a factor of 2³ so may now be neglected.
Then the LCM is 2³ · 3 = 24 (Answer C)
Ответ:
C is the answer
Ответ:
The answer to your question is 1.