Question 11
What is the value of x in the equation 2x + 5 = 15?AlgebraAlgebra: Linear equationseasy
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Question 12
If f(x) = 3x^2 - 2x + 1, what is f(2)?FunctionsFunctions: Evaluationeasy
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Question 13
What is the derivative of f(x) = 5x^3 - 4x + 7?CalculusCalculus: Differentiationmedium
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Question 14
In a right-angled triangle, if one angle is 30°, what is the length of the side opposite this angle if the hypotenuse is 10 units?TrigonometryTrigonometry: Right-angled triangleseasy
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Question 15
What is the area of a circle with radius 7 cm? (Use π ≈ 3.14)GeometryGeometry: Circle areaeasy
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Question 16
A bag contains 3 red, 5 blue, and 2 green balls. What is the probability of drawing a blue ball?ProbabilityProbability: Basic probabilityeasy
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Question 17
The mean of five numbers is 12. If one number is removed, the mean of the remaining four numbers is 10. What is the removed number?StatisticsStatistics: Measures of central tendencymedium
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Question 18
If f(x) = 2x^2 - 3x + 4, find the x-coordinate of the vertex.AlgebraAlgebra: Quadratic functionsmedium
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Question 19
Calculate the limit: lim(x→0) (sin 3x)/x.CalculusCalculus: Limitshard
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Question 20
In triangle ABC, AB = AC and angle BAC = 40°. What is the measure of angle ABC?GeometryGeometry: Isosceles triangleshard
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