Exam 10: Rational Numbers

A patient's temperature was 101.5°F at noon. Changes recorded during the afternoon temperature checks were +0.2° at 2 P.M. and -1.1° at 4 P.M. What was the patient's temperature at 4 P.M.?

Place the correct symbol, <, =, or >, between the two numbers. |4| ____ |7|

Simplify: -4.8 + (-5.76)

A patient begins a new diet plan and each month records any change in weight using integers. Calculate the total change in the patient's weight using these recorded amounts: -6 lb, -3 lb, 2 lb, -5 lb, and -4 lb.

Graph the numbers on the number line. -1 and 2

Simplify the following expression. $- \frac { 2 } { 11 } - \frac { 1 } { 2 }$

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 3,200,000 cells/?l. Write this cell count in scientific notation. Is this patient anemic?

Simplify the following expression. $\left( \frac { 3 } { 5 } \right) \div \left( - \frac { 4 } { 5 } \right)$

Find the opposite number of -25.

A patient's weight loss can be recorded using negative numbers. A patient's weight loss in November was recorded as -3 lb. In December, the same patient's weight loss was recorded as -1 lb and in January, the patient's weight loss was recorded as -2 lb. During which month was the weight loss the greatest?

Simplify the following. $( 3.4 ) ^ { 2 } - 5 \times 3.2$

Multiply: 4(-2)(-5)

The patients enrolled in a clinical trial for a new weight-loss drug had a combined weight loss of -15 lb during the first month. During the second month of the clinical trial, the patients lost twice as much weight as they had the first month. What was their combined weight loss the second month?

A patient's temperature was 103°F at noon. By 2 P.M., the patient's temperature had fallen 4°F (-4°) but at 5 P.M., it had risen 2° (+2°). What was the patient's temperature at 5 P.M.?

Find the quotient of -45 and -15.

Find the absolute value of the number 3.

Place the correct symbol, <, =, or >, between the two numbers. |6| ____ |1|

Write the mass of Earth, which is approximately 5,980,000,000,000,000,000,000,000 kg, in scientific notation.

Simplify: $- 4.6 \times 9.1$

Simplify the following expression. $\left( \frac { 14 } { 19 } \right) \left( - \frac { 1 } { 4 } \right) \left( - \frac { 8 } { 17 } \right)$