SAT Exam Math – Calculator- Medium By Jane Eastwood | 1. A school raised $3000 for a fundraiser. 30% of the money was from car washes. How much money was raised from car washes? A) $900 B) $1000 C) $1100 D) $1200 The correct answer is A. 30% of $3000 is 0.3 * $3000 = $900. 2. Angie drove for 3 hours at 50 mph and then for 2 hours at 65 mph. What was her average speed for the whole trip? A) 54 mph B) 55 mph C) 56 mph D) 57 mph The correct answer is A. Distance = (3 * 50) + (2 * 65) = 150 + 130 = 280 miles. Time = 3 + 2 = 5 hours. Speed = Distance/Time = 280/5 = 56 mph. 3. Evaluate: lim_(x->4) (√x – 2) / (x – 4) A) 0 B) 1/4 C) 1/2 D) undefined The correct answer is B. Use L’Hospital’s rule to evaluate the indeterminate form. 4. If tan(x) = 5/12, find the exact value of x in radians. A) π/6 B) π/4 C) π/3 D) π/5 The correct answer is A. Take the inverse tangent of both sides. 5. Simplify: (3x – y)(2x + y) A) 6×2 – y2 B) 6×2 + xy C) 5×2 – y2 D) 5×2 + xy The correct answer is A. Use the distributive property and combine like terms. 6. A rectangular field is 30m long and 25m wide. A circular pond with diameter 14m is in the field. Find the area of the remaining land. A) 700π m2 B) 750π m2 C) 800π m2 D) 850π m2 The correct answer is B. Find the area of field, pond, and remaining land. 7. f(x) = x3 – 5x. Find f'(3) A) 24 B) 27 C) 30 D) 33 The correct answer is B. Take the derivative of f(x) and evaluate it at x=3. 8. Simplify: log(8×4/2x) A) 2log(x) + 3 B) 2log(x) + 2 C) log(x) + 2 D) log(x) + 3 The correct answer is B. Use log properties and simplify the expression. 9. A bag contains 5 red balls and x blue balls. If the probability of randomly selecting a red ball is 5/12, what is the value of x? A) 7 B) 10 C) 12 D) 15 The correct answer is A. Set up equations for total balls and probability and solve the system of equations. 10. If 3x – 2 = 5x/2, what is the value of x? A) -4 B) -2 C) 2 D) 4 The correct answer is A. Isolate the x terms and solve the resulting equation. Loading … Posted in Other
