Question 261
Simplify the expression: 4x - 7 + 3x + 9.AlgebraAlgebraic expressionseasy
Select one option to submit your answer.
NECTA Basic Mathematics – Tanzania
AI-generated exam-style practice tailored for Tanzania students.
Practice mode
Answer immediately. If you miss, we show exactly why your selected option is wrong.
Progress: 0/10 correct (0 answered)
Question 262
Solve for x: 5x - 3 = 2x + 12.Linear equationsLinear equationsmedium
Select one option to submit your answer.
Question 263
A bag contains 5 red and 3 green balls. What is the probability of picking a red ball?Statistics and probabilityProbabilityeasy
Select one option to submit your answer.
Question 264
The mean of five numbers is 12. Four of the numbers are 8, 15, 10, and 13. What is the fifth number?Statistics and probabilityStatistics - meaneasy
Select one option to submit your answer.
Question 265
What is the distance between points A(2,3) and B(6,7)?Coordinate geometryCoordinate geometrymedium
Select one option to submit your answer.
Question 266
Find the surface area of a cube with side length 3 cm.MensurationMensurationeasy
Select one option to submit your answer.
Question 267
If sin θ = 0.6, find cos θ when θ is in the first quadrant.TrigonometryTrigonometrymedium
Select one option to submit your answer.
Question 268
The mean of five numbers is 12. If one number is removed, the mean becomes 10. What was the removed number?StatisticsStatistics and probabilityhard
Select one option to submit your answer.
Question 269
Solve for x: 2x + 5 = 13.Linear equationsLinear equationseasy
Select one option to submit your answer.
Question 270
A box contains 3 red balls and 5 blue balls. What is the probability of drawing a red ball?Statistics and probabilityProbabilityeasy
Select one option to submit your answer.