Question 221
A bag contains 4 red, 5 blue and 6 green marbles. What is the probability of randomly selecting a blue marble?ProbabilityProbability - Basic Probabilityeasy
Select one option to submit your answer.
NSC Mathematics – South Africa
AI-generated exam-style practice tailored for South Africa students.
Practice mode
Answer immediately. If you miss, we show exactly why your selected option is wrong.
Progress: 0/10 correct (0 answered)
Question 222
Given the data set: 3, 7, 7, 2, 9, 10, 7, what is the mode?StatisticsStatistics - Measures of Central Tendencyeasy
Select one option to submit your answer.
Question 223
Find the inverse of the function f(x) = 3x - 4.FunctionsFunctions - Inverse Functionsmedium
Select one option to submit your answer.
Question 224
Evaluate the definite integral ∫₀² (4x) dx.CalculusIntegration - Definite Integralsmedium
Select one option to submit your answer.
Question 225
Prove that in a right triangle with sides a, b and hypotenuse c, the Pythagorean theorem holds: a² + b² = c². Which of the following justifies this?GeometryGeometry - Pythagoras' Theoremhard
Select one option to submit your answer.
Question 226
What is the solution set for the equation 2x + 5 = 13?AlgebraEquations and inequalitieseasy
Select one option to submit your answer.
Question 227
Find the derivative of y = 5x^3 + 2x^2 - x + 7 with respect to x.CalculusDifferentiation rulesmedium
Select one option to submit your answer.
Question 228
In triangle ABC, angle A = 30°, angle B = 60°, and side AB = 10 cm. What is the length of side AC?TrigonometryTrigonometric ratios and lawsmedium
Select one option to submit your answer.
Question 229
What is the value of cos 45°?TrigonometryTrigonometric ratioseasy
Select one option to submit your answer.
Question 230
Calculate the probability of getting exactly 2 heads when tossing 3 fair coins.ProbabilityBasic probabilityeasy
Select one option to submit your answer.