Question 1

What is -13 more than -6?

Accepted Answer

A)  -8 
B)  7 
C)  -19 
D)  -20 
E)  -7 
A)  -8 
B)  7 
C)  -19 
D)  -20 
E)  -7

Question 2

The patients enrolled in a clinical trial for a new weight-loss drug had a combined weight loss of -18 lb during the first month. There were nine patients in the clinical trial. What was the average weight loss per patient?

Accepted Answer

A)  -1 lb 
B)  3 lb 
C)  -2 lb 
D)  1 lb 
E)  -3 lb 
A)  -1 lb 
B)  3 lb 
C)  -2 lb 
D)  1 lb 
E)  -3 lb

Question 3

If a patient's red blood cell count drops below the normal range of 3.6 ×
 $10 ^ { 6 }$ cells/?l to 6.0 ×  $10 ^ { 6 }$ cells/?l , the patient is suffering from anemia. The red blood cell count of a patient is 2,100,000 cells/?l. Write this cell count in scientific notation. Is this patient anemic?

Accepted Answer

A)  21,000,000 cells/?l; yes 
B)  2.1 ×  $10 ^ { 6 }$ cells/?l; no 
C)  2.1 × $10 ^ { 6 }$ cells/?l; yes 
D)  2.1 × $10 ^ { 7 }$ cells/?l; no 
E)  2.1 × $10 ^ { 5 }$ cells/?l; yes 
A)  21,000,000 cells/?l; yes 
B)  2.1 ×  $10 ^ { 6 }$ cells/?l; no 
C)  2.1 × $10 ^ { 6 }$ cells/?l; yes 
D)  2.1 × $10 ^ { 7 }$ cells/?l; no 
E)  2.1 × $10 ^ { 5 }$ cells/?l; yes

Question 4

Simplify the following. $( - 7 ) ^ { 2 } - ( - 25 ) ^ { 2 } - 5$

Accepted Answer

A)  31 
B)  669 
C)  -571 
D)  -581 
E)  -41 
A)  31 
B)  669 
C)  -571 
D)  -581 
E)  -41

Question 5

The pH scale is used to indicate the acidity of a solution based on the concentration of hydrogen ions in the solution. The scale ranges from 0 to 14, and solutions with low pH numbers are more acidic than those with high pH numbers. Vinegar is a acidic solution with a pH of 2.2, indicating that it contains 1 × $10 ^ { - 2 }$ g of hydrogen ions per liter. Write this number in decimal form.

Accepted Answer

A)  0.01 g of hydrogen ions/L 
B)  0.1 g of hydrogen ions/L 
C)  1 g of hydrogen ions/L 
D)  10 g of hydrogen ions/L 
E)  100 g of hydrogen ions/L 
A)  0.01 g of hydrogen ions/L 
B)  0.1 g of hydrogen ions/L 
C)  1 g of hydrogen ions/L 
D)  10 g of hydrogen ions/L 
E)  100 g of hydrogen ions/L

Question 6

Subtract: 20 - 30

Accepted Answer

A)  49 
B)  50 
C)  -10 
D)  10 
E)  -50 
A)  49 
B)  50 
C)  -10 
D)  10 
E)  -50

Question 7

Divide: 0 $\div$ (-9)

Accepted Answer

A)  9 
B)  8 
C)  $0$ 
D)  -9 
E)  -6 
A)  9 
B)  8 
C)  $0$ 
D)  -9 
E)  -6

Question 8

Subtract: 1 - (-21)

Accepted Answer

A)  -19 
B)  -20 
C)  20 
D)  22 
E)  -22 
A)  -19 
B)  -20 
C)  20 
D)  22 
E)  -22

Question 9

The elevation, or height, of places on Earth is measured in relation to sea level, or the average level of the ocean's surface. The table below shows heights above sea level as a positive number and depth below sea level as a negative number. Find the difference in elevation between Mt. Elbrus and the Caspian Sea. Continent
Highest elevation
(in meters)
Lowest elevation
(in meters)
Africa
Mt) Kilimanjaro
5895
Qattara Depression
-156
Asia
Mt) Everest
8850
Dead Sea
-411
Europe
Mt) Elbrus
5642
Caspian Sea
-28
America
Mt) Aconcagua
6960
Death Valley
-86

Accepted Answer

A)  -5666 m 
B)  5670 m 
C)  -5770 m 
D)  5767 m 
E)  5667 m 
A)  -5666 m 
B)  5670 m 
C)  -5770 m 
D)  5767 m 
E)  5667 m

Question 10

Place the correct symbol, , between the two numbers. 3 ___ -1

Accepted Answer

A)   
A)

Question 11

Write the given numbers in order from smallest to largest. 11, 6, -2, -15

Accepted Answer

A)  -15, -2, 6, 11 
B)  -15, 11, 6, 11 
C)  11, 6, -15, -2 
D)  6, -2, -15, 11 
E)  -15, -2, 11, 6 
A)  -15, -2, 6, 11 
B)  -15, 11, 6, 11 
C)  11, 6, -15, -2 
D)  6, -2, -15, 11 
E)  -15, -2, 11, 6

Question 12

Subtract: -16 - 26

Accepted Answer

A)  -11 
B)  -10 
C)  9 
D)  -42 
E)  10 
A)  -11 
B)  -10 
C)  9 
D)  -42 
E)  10

Question 13

Multiply: -20 $\text {. }$ (22)

Accepted Answer

A)  2 
B)  -42 
C)  42 
D)  440 
E)  -440 
A)  2 
B)  -42 
C)  42 
D)  440 
E)  -440

Question 14

State which number on the number line is in the location given below. 7 units to the left of -2

Accepted Answer

A)  9 
B)  -10 
C)  -9 
D)  5 
E)  10 
A)  9 
B)  -10 
C)  -9 
D)  5 
E)  10

Question 15

Simplify the following expression. $\left( - \frac { 5 } { 19 } \right) \div \left( - \frac { 1 } { 3 } \right)$

Accepted Answer

A)  $- \frac { 15 } { 19 }$ 
B)  $\frac { 15 } { 76 }$ 
C)  $\frac { 15 } { 19 }$ 
D)  $\frac { 5 } { 26 }$ 
E)  $- \frac { 5 } { 26 }$ 
A)  $- \frac { 15 } { 19 }$ 
B)  $\frac { 15 } { 76 }$ 
C)  $\frac { 15 } { 19 }$ 
D)  $\frac { 5 } { 26 }$ 
E)  $- \frac { 5 } { 26 }$

Question 16

Hypothermia begins when a person's core body temperature falls below 95°. A patient in the emergency room has a core body temperature 2.4° below the normal body temperature of 98.3°. Is this patient suffering from hypothermia?

Accepted Answer

A)  Yes 
B)  No 
A)  Yes 
B)  No

Question 17

The normal range for a white blood cell count is 4,000 cells/?l to 18,000 cells/?l. Write these numbers in scientific notation.

Accepted Answer

A)  4 ×  10 $3$ cells/?l to 1.8 × 10 $5$ cells/?l 
B)  4 × 1 $3$ 0 $4$ cells/?l to 1.8 × 10 $4$ cells/?l 
C)  4 × 10 $5$ cells/?l to 1.8 × 10 $3$ cells/?l 
D)  4 × 10 $3$ cells/?l to 1.8 × 10 $4$ cells/?l 
E)  4 × 10 $4$ cells/?l to 1.8 ×
 10 $3$ cells/?l 
A)  4 ×  10 $3$ cells/?l to 1.8 × 10 $5$ cells/?l 
B)  4 × 1 $3$ 0 $4$ cells/?l to 1.8 × 10 $4$ cells/?l 
C)  4 × 10 $5$ cells/?l to 1.8 × 10 $3$ cells/?l 
D)  4 × 10 $3$ cells/?l to 1.8 × 10 $4$ cells/?l 
E)  4 × 10 $4$ cells/?l to 1.8 ×
 10 $3$ cells/?l

Question 18

The boiling point of nitrogen is $- 195.8 ^ { \circ } \mathrm { C }$ and the melting point is $- 209.86 ^ { \circ } \mathrm { C }$ Find the difference between the boiling point and the melting point of nitrogen.

Accepted Answer

A)  $- 14.06 ^ { \circ } \mathrm { C }$ 
B)  $405.66 ^ { \circ } \mathrm { C }$ 
C)  $14.06 ^ { \circ } \mathrm { C }$ 
D)  $14.56 ^ { \circ } \mathrm { C }$ 
E)  $- 405.66 ^ { \circ } \mathrm { C }$ 
A)  $- 14.06 ^ { \circ } \mathrm { C }$ 
B)  $405.66 ^ { \circ } \mathrm { C }$ 
C)  $14.06 ^ { \circ } \mathrm { C }$ 
D)  $14.56 ^ { \circ } \mathrm { C }$ 
E)  $- 405.66 ^ { \circ } \mathrm { C }$

Question 19

Simplify: -1.46 + (-7.93)

Accepted Answer

A)  6.47 
B)  -9.39 
C)  -9.69 
D)  -9.49 
E)  -6.47 
A)  6.47 
B)  -9.39 
C)  -9.69 
D)  -9.49 
E)  -6.47

Question 20

Place the correct symbol, , between the two numbers. |-2| ____ |3|

Accepted Answer

A)  = 
B)   
A)  = 
B)

What is -13 more than -6?

The patients enrolled in a clinical trial for a new weight-loss drug had a combined weight loss of -18 lb during the first month. There were nine patients in the clinical trial. What was the average weight loss per patient?

If a patient's red blood cell count drops below the normal range of 3.6 × $10 ^ { 6 }$ cells/?l to 6.0 × $10 ^ { 6 }$ cells/?l , the patient is suffering from anemia. The red blood cell count of a patient is 2,100,000 cells/?l. Write this cell count in scientific notation. Is this patient anemic?

Simplify the following. $( - 7 ) ^ { 2 } - ( - 25 ) ^ { 2 } - 5$

Subtract: 20 - 30

Divide: 0 $\div$ (-9)

Subtract: 1 - (-21)

Place the correct symbol, < or >, between the two numbers. 3 ___ -1

Write the given numbers in order from smallest to largest. 11, 6, -2, -15

Subtract: -16 - 26

Multiply: -20 $\text {. }$ (22)

State which number on the number line is in the location given below. 7 units to the left of -2

Simplify the following expression. $\left( - \frac { 5 } { 19 } \right) \div \left( - \frac { 1 } { 3 } \right)$

Hypothermia begins when a person's core body temperature falls below 95°. A patient in the emergency room has a core body temperature 2.4° below the normal body temperature of 98.3°. Is this patient suffering from hypothermia?

The normal range for a white blood cell count is 4,000 cells/?l to 18,000 cells/?l. Write these numbers in scientific notation.

The boiling point of nitrogen is $- 195.8 ^ { \circ } \mathrm { C }$ and the melting point is $- 209.86 ^ { \circ } \mathrm { C }$ Find the difference between the boiling point and the melting point of nitrogen.

Simplify: -1.46 + (-7.93)

Place the correct symbol, <, =, or >, between the two numbers. |-2| ____ |3|

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Exam 11: Introduction to Algebra

What is -13 more than -6?

The patients enrolled in a clinical trial for a new weight-loss drug had a combined weight loss of -18 lb during the first month. There were nine patients in the clinical trial. What was the average weight loss per patient?

Simplify the following. (−7)2−(−25)2−5( - 7 ) ^ { 2 } - ( - 25 ) ^ { 2 } - 5(−7)2−(−25)2−5

Subtract: 20 - 30

Divide: 0 ÷\div÷ (-9)

Subtract: 1 - (-21)

Place the correct symbol, < or >, between the two numbers. 3 ___ -1

Write the given numbers in order from smallest to largest. 11, 6, -2, -15

Subtract: -16 - 26

Multiply: -20 . \text {. }. (22)

State which number on the number line is in the location given below. 7 units to the left of -2

Simplify the following expression. (−519)÷(−13)\left( - \frac { 5 } { 19 } \right) \div \left( - \frac { 1 } { 3 } \right)(−195​)÷(−31​)

Hypothermia begins when a person's core body temperature falls below 95°. A patient in the emergency room has a core body temperature 2.4° below the normal body temperature of 98.3°. Is this patient suffering from hypothermia?

The normal range for a white blood cell count is 4,000 cells/?l to 18,000 cells/?l. Write these numbers in scientific notation.

The boiling point of nitrogen is −195.8∘C- 195.8 ^ { \circ } \mathrm { C }−195.8∘C and the melting point is −209.86∘C- 209.86 ^ { \circ } \mathrm { C }−209.86∘C Find the difference between the boiling point and the melting point of nitrogen.

Simplify: -1.46 + (-7.93)

Place the correct symbol, <, =, or >, between the two numbers. |-2| ____ |3|

Whole Numbers

Fractions

Decimals

Ratio and Proportion

Percents

Applications for Business

Statistics and Probability

Us Units of Measurement

Metric System Measurement

Rational Numbers

Filters

Simplify the following. $( - 7 ) ^ { 2 } - ( - 25 ) ^ { 2 } - 5$

Divide: 0 $\div$ (-9)

Multiply: -20 $\text {. }$ (22)

Simplify the following expression. $\left( - \frac { 5 } { 19 } \right) \div \left( - \frac { 1 } { 3 } \right)$

The boiling point of nitrogen is $- 195.8 ^ { \circ } \mathrm { C }$ and the melting point is $- 209.86 ^ { \circ } \mathrm { C }$ Find the difference between the boiling point and the melting point of nitrogen.