Subject: Mathematics
Book: Maths Mastery
PEMDAS (Parentheses, Exponents, Multiplication/Division, Addition/Subtraction) or BODMAS (Brackets, Orders, Division/Multiplication, Addition/Subtraction) clarifies the sequence in which to tackle operations. For example, to evaluate 3 + 2 × (5 – 2)², start inside parentheses: (5 – 2) = 3, then exponents: 3² = 9, next multiplication: 2 × 9 = 18, and finally addition: 3 + 18 = 21. Following this strict hierarchy prevents confusion and ensures consistent results across all math problems. This concept underpins everything from basic arithmetic to advanced algebra, guaranteeing accurate calculations in daily life—like computing tax on multiple items or analyzing complex spreadsheet formulas.
If sin(θ) = 0.6 and θ is acute, what is cos(θ)?
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View QuestionIf the average of five consecutive odd numbers is 25, what is the largest number?
View QuestionIf a cone has a radius of 5 cm and a height of 12 cm, what is its slant height?
View QuestionWhat is the square root of 0.25?
View QuestionIf 2x - 3 = 7, what is the value of x?
View QuestionIf x^2 + 4x + 4 = 0, what is the value of x?
View QuestionA cone has a base radius of 7 cm and height of 24 cm. What is its volume?
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