AnswersTN-Mathematical Reasoning for Decision Making SupplementUnit Test

Area of Triangles and Parallelograms Answers

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1
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At a grocery store, blueberries come packaged in 8-ounce containers for $2.80. At a farmer's market, blueberries cost $4.20 for 14 ounces. There are 16 ounces in one pound. Which statement accurately compares the cost of blueberries?

A
Blueberries are $0.23 per pound more expensive at the farmer’s market.
B
Blueberries are $0.50 per pound less expensive at the farmer’s market.
C
Blueberries are $0.80 per pound less expensive at the farmer’s market.
D
Blueberries are $1.40 per pound more expensive at the farmer’s market.
2
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Mike and Teegan each measured the volume of the 16-ounce bottle three times. They recorded their measurements as shown.Mike:16.4 oz, 15.2 oz, 15.8 ozTeegan:16.34 oz, 16.59 oz, 15.13 oz

A
Mike’s measurements are more precise and more accurate.
B
Teegan’s measurements are more precise and more accurate.
C
Mike’s measurements are more precise, but Teegan’s measurements are more accurate.
D
Mike’s measurements are more accurate, but Teegan’s measurements are more precise.
3

What is the greatest possible error if Irina measured the weight of her dog as 13 pounds?

A
0.1 pounds
B
0.5 pounds
C
12.5 pounds
D
13.5 pounds
4

Three ounces of cinnamon cost $2.40. If there are 16 ounces in 1 pound, how much does cinnamon cost per pound?

A
$12.80
B
$31.20
C
$38.40
D
$115.20
5

The acceleration of an object due to gravity is 32 feet per second squared. What is acceleration due to gravity in inches per second squared?

A
inches per second squared
Option A
B
inches per second squared
Option B
C
384 inches per second squared
D
1,024 inches per second squared
6

How many significant figures does 2,090 have?

A
1
B
2
C
3
D
4
7

Lola needs to sign 96 invitations. Using a stopwatch that measures time to tenths of a second, it takes Lola 5.3 seconds to sign her full name. Going by the accuracy of the stopwatch, which is the most accurate determination for the number of seconds Lola needs to sign all 96 invitations?

A
508 seconds
B
510 seconds
C
509 seconds
D
508.8 seconds
8

What is the sum of the given values to the correct level of precision? 7.45 ft10.629 ft+0.3 ft

A
18.379 ft
B
18.38 ft
C
18.4 ft
D
20 ft
9

A text font fits 12 characters per inch. Using the same font, how many characters can be expected per yard of text? There are 12 inches in a foot, and 3 feet in a yard.

A
36 characters
B
144 characters
C
360 characters
D
432 characters
10

The key concepts used to convert units between different systems of measurement are shown without the final two steps.1. Identify the units of measure to be converted.2. Write conversion factors.3. Cancel units.4.5. Which two steps will complete the list correctly?

A
4. Divide the original measurement by the conversion factors.5. Check for reasonableness.
B
4. Multiply the original measure by the conversion factors.5. Simplify the answer.
C
4. Multiply the original measure by the conversion factors.5. Check for reasonableness.
D
4. Divide the original measure by the conversion factors.5. Simplify the answer.
11

What is the value of the expression, written in standard form?

Question illustration
Answer not available
12

A human hair was measured to have a diameter of inches. The width of a piece of paper was measured to be inches thick. In scientific notation, how much thicker is the piece of paper than the hair?

Question illustration
A
inches
Option A
B
inches
Option B
C
inches
Option C
D
inches
Option D
13

Which expression shows how to convert 60 hours to days?

A
StartFraction 60 hours Over 1 EndFraction times StartFraction 1 hour Over 24 days EndFraction
Option A
B
StartFraction 60 hours Over 1 EndFraction times StartFraction 1 day Over 24 hours EndFraction
Option B
C
StartFraction 60 hours Over 1 EndFraction times StartFraction 24 hours Over 1 day EndFraction
Option C
D
StartFraction 60 hours Over 1 EndFraction times StartFraction 24 days Over 1 hour EndFraction
Option D
14

Which is the best estimate for written in scientific notation?

Question illustration
A
3 times 10 Superscript 2
Option A
B
6 times 10 Superscript 2
Option B
C
3 times 10 Superscript 4
Option C
D
6 times 10 Superscript 4
Option D
15

How many significant figures does 0.0560 have?

A
2
B
3
C
4
D
5
16

A crate of bananas has a mass of 674.8 dekagrams. What is the mass of the crate of bananas in centigrams? Use the metric table to help answer the question.Metric Tablekilo-hecto-deka-unitdeci-centi-milli-1,0001001010.10.010.001

A
0.6748 centigrams
B
6.748 centigrams
C
67,480 centigrams
D
674,800 centigrams
17

How many liters are in 1 dekaliter? Use the metric table to help answer the question.Metric Tablekilo-hecto-deka-unitdeci-centi-milli-1,0001001010.10.010.001

A
1 liter
B
10 liters
C
100 liters
D
1,000 liters
18

Which number is greatest?

A
2.89 times 10 Superscript negative 8
Option A
B
1.997 times 10 Superscript 2
Option B
C
8.9 times 10 Superscript negative 6
Option C
D
5 times 10 Superscript negative 6
Option D
19

Aneesha travels at a rate of 50 miles per hour. Morris is traveling 3 feet per second less than Aneesha. Which is the most accurate rate of speed Morris is traveling?1 mile = 5,280 feet

A
45 miles per hour
B
46 miles per hour
C
47 miles per hour
D
48 miles per hour
20

Which statement is correct?

A
StartFraction 3.56 times 10 Superscript 2 Baseline Over 1.09 times 10 Superscript 4 Baseline EndFraction less-than-or-equal-to (4.08 times 10 Superscript 2 Baseline) (1.95 times 10 Superscript negative 6 baseline)
Option A
B
StartFraction 3.56 times 10 Superscript 2 Baseline Over 1.09 times 10 Superscript 4 Baseline EndFraction less-than (4.08 times 10 Superscript 2 Baseline) (1.95 times 10 Superscript negative 6 baseline)
Option B
C
StartFraction 3.56 times 10 Superscript 2 Baseline Over 1.09 times 10 Superscript 4 Baseline EndFraction greater-than (4.08 times 10 Superscript 2 Baseline) (1.95 times 10 Superscript negative 6 baseline)
Option C
D
StartFraction 3.56 times 10 Superscript 2 Baseline Over 1.09 times 10 Superscript 4 Baseline EndFraction = (4.08 times 10 Superscript 2 Baseline) (1.95 times 10 Superscript negative 6 baseline)
Option D

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