Ask Zappy logoAsk Zappy
Try Premium
Subjects
IB Math
IB Math AA SL
Question Bank
IB Math AA HL
Question Bank
IB Biology
Coming soon
IB Chemistry
Coming soon
IB Physics
Coming soon
IB Psychology
Coming soon
IB Economics
Coming soon
Educators
Coming soon
Students
Coming soon

A zappier way to ace IB Math

Crystal-clear notes, exam-style questions, and step-by-step solutions.

Start learningBrowse topics
Exam-style practiceStep-by-step hintsClean solutions
IB Mathematics

Analysis & Approaches

∫
SL›HL›

Explore topics

Mapped to the latest IB syllabus for AA.

Topic 1
Number & Algebra
48 Qs
SequencesExponentsLogs
Topic 2
Functions
62 Qs
TransformationsInverseComposite
Topic 3
Geometry and Trigonometry
54 Qs
Trig IdentitiesVectorsTriangles
Topic 4
Statistics and Probability
39 Qs
DistributionsCombinatoricsRegression
Topic 5
Calculus
41 Qs
LimitsDifferentiationIntegration

Practice that teaches

Solve exam-style questions with instant hints and clean solutions. Generate new sets for any subtopic and track what to review next.

  • Paper 1 & Paper 2 modes
  • Hints and full solutions
  • Mild / Medium / Spicy levels
Medium

[Maximum mark: 5]

A company’s revenue in year 0 is R0 = 8.0 × 105 dollars. Each year, the revenue is multiplied by a constant factor k with 1 < k < 1.2. After n years, the revenue is Rn = R0 kn.

(a) Given R3 = 1.10 × 106, find k correct to 3 significant figures.[2]
(b) Find the least integer n such that Rn ≥ 1.5 × 106.[3]

Ready to study smarter?

Everything here is free while we’re in beta. No exam packs or paywalls.

Explore topicsStart free