Daily problem

Past problems

Each day opens to the answer, a worked solution and how members did.

• Nov 12CountingA club of 6 people chooses a president, vice president, secretary, treasurer. No one can hold two jobs. How many ways can this be done?19 tried · 37% first try
• Nov 11Lines and slopeA line passes through (2, 1) and (8, −2). Find its slope m and y-intercept b.11 tried · 55% first try
• Nov 10Quadratic equationsSolve: x² − 9x + 8 = 017 tried · 65% first try
• Nov 9GPAFind the unweighted GPA, rounded to 2 decimals. Use A = 4, B = 3, C = 2, D = 1. Every class counts equally.22 tried · 68% first try
• Nov 8IntegralsEvaluate the integral of −x + 6 from x = 1 to x = 4.9 tried · 78% first try
• Nov 7Exponent rulesSimplify (x⁵)³ · x⁹. What is the exponent?10 tried · 50% first try
• Nov 6ProbabilityYou roll two fair dice. What is the probability the total is 11? Give a fraction.29 tried · 48% first try
• Nov 5PercentagesAfter a 50% discount, a game costs $80.00. What was the original price?46 tried · 70% first try
• Nov 4Unit circleFind the exact value of tan(45°).13 tried · 62% first try
• Nov 3Exponential growth and decayYou put $2000.00 in an account that pays 5% interest compounded once a year. How much is in the account after 9 years? Round to the nearest cent.16 tried · 50% first try
• Nov 2InequalitiesSolve −x + 11 < 14.11 tried · 18% first try