MATH MID TERM REVIEW Real Numbers 1. The square root of a number is 9. What is the other square root? a. -9 c. 3 b. -3 d. 81 2. Which of the following is an integer but not a whole number? a. -9.6 b. 0 c. -4 d. 3.7 3. Which statement is false? a. No integers are irrational numbers. b. All whole numbers are integers. c. No real numbers are irrational numbers. d. All integers greater than 0 are whole numbers. 4. Tell whether the statement “All integers are rational numbers” is true or false. Explain your choice. ________________________________________________________________________________________ Order these numbers from least to greatest. 13 5. 3𝜋 , √10 , 3.65, 4 Change each fraction to a decimal or decimal to fraction (in simplest form). 7 6. 0.68 7. 12 Scientific Notation Write each in scientific notation or standard notation. (2 points each) 1. 3,028,000,000 3. 2.39 𝑥 105 2. 0.0000827 4. 9.201 𝑥 10−3 Exponent Rules 1. 4𝑥𝑦2 12𝑥 3 𝑦 4 𝑧 2. 𝑥 −7 𝑥3 3. (𝑦 )4 4. 380 Pythagorean Theorem Using the Pythagorean Theorem, solve the word problem. Show your work. 1. A roofer needs to work on the top of a house. The house is 22 ft. tall and his ladder is 25 ft. long. How far does the ladder need to be away from the base of the house? 2. If a TV is 32 inches long and 28 inches tall, what is the diagonal length of the TV? Using the distance formula, what is the distance between these two points? 3. (4 , 3) and ( 7 , 5) 4. (-2, 1) and ( 6 , -5) Using the Pythagorean Theorem, find the length of the missing side. Show your work. 1. 17 21 2. 19 24 Using the Pythagorean Theorem, tell whether each triangle makes a right triangle. Show your work. Your answers should be yes or no. 1. 16 inches, 30 inches, 34 inches 2. 7 inches, 24 inches, 19 inches Graphing Transformations Graph each shape after the given transformation on the coordinate plane. 1. Translate 5 up and 2 left 2. Reflection along the x-axis 3. Rotate 180° 4. Dilate: scale factor 2 Angle Relationships With Parallel Lines Tell which angles are corresponding, alternate interior, alternate exterior, vertical, and same-side interior. Corresponding angles: Alternate interior angles: Alternate exterior angles: Same-side interior angles: Vertical angles: If angle 1 is 123°, identify the other 7 angles. 123° Angle 2: _____ Angle 3: _____ Angle 4: _____ Angle 5: _____ Angle 6: _____ Angle 7: _____ Angle 8: _____