Trigonometry
In a right-angled triangle, if the side opposite to angle a is 3 and the hypotenuse is 5, what is the value of sin (a)?
What is 3/5?
What is 0.6?
What is opposite/hypotenuse?
When the solution to 2x-4<10 is graphed on a number line, is the endpoint an open or closed circle?
What is an open circle?
Simplify the expression: 3(2x+4)-5x.
What is x+12?
You flip a standard fair coin. What is the probability, expressed as a ratio, that it lands on tails?
What is 1:1?
Which is larger: 5/8 or 2/3? Find the common denominator to prove it.
What is 2/3; 24?
In a right triangle ABC with the right angle at C, if side BC = 8 and side AC = 6, find the value of sin(A).
What is 4/5?
What is 0.8?
Solve for x: x + 5 > 12.
What is x=(7, ∞)?
Solve for x: (x/4)+7=15.
What is x=32?
You have a deck of cards numbered 1 through 10. If you pick one card, what is the probability that it is a multiple of 3 (3, 6, 9) or a multiple of 5 (5, 10)?
What is 1/2?
Solve: (3/4)÷(1/8).
What is 6?
If the sine of a right triangle is 4/5, what are the lengths of the opposite, adjacent, and hypotenuse?
What is: Opposite - 4, Adjacent - 3, Hypotenuse - 5?
Solve for y: -3y≥9.
What is y= [-3, ∞)?
Factor the quadratic expression: x2+5x+6.
What is (x+2)(x+3)?
You have a jar with 2 silver coins and 8 copper coins. You pick one coin and keep it (you don't put it back). If the first coin you picked was silver, what is the probability that the second coin you pick is also silver?
What is 1/9?
Express 0.85 as a fraction in its simplest form.
What is 17/20?
In a 45-45-90 triangle, if one leg is 7 units long, what is the exact length of the hypotenuse?
What is 7√2?
Find the set of all integers x that satisfy the inequality x2<20.
What is {-4, -3, -2, -1, 0, 1, 2, 3, 4}?
Two numbers add up to 20 and have a difference of 4. What are the two numbers?
What is 12 and 8?
You flip a coin and roll a six-sided die. What is the probability that the coin lands on Heads and the die lands on a 4?
What is 1/12?
A recipe requires 2 1/3 cups of flour. If you want to make only half of the recipe, how much flour do you need? Display as an improper fraction.
What is 7/6?
If you know cos(a) = 0.5, is the angle 30, 60, or 90 degrees?
What is 60 degrees?
Solve the compound inequality: 5<2x + 1≤11.
What is 2<x≤5?
Solve for x in the equation: 2x+1= 32.
What is x=4?
Sarah flips a coin 50 times. Theoretically, she should get 25 heads. However, she actually gets 30 heads. If she flips the coin one more time (the 51st time), what is the theoretical probability that it will be tails (in percentage)?
What is 50%?
Simplify the complex fraction: (1/2 + 1/3)/(1/4). Present as a mixed number.
What is 3 1/3?