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3 years ago

△KLM has k>l>m. Which angle of the triangle may measure 60°?

Mathematics

2 answers:

Aleonysh [2.5K]3 years ago

8 0

M>k because is almost makes the 90°

Alex_Xolod [135]3 years ago

4 0

Answer: ∠L

Step-by-step explanation:

Assume this is meant to be a 30°-60°-90° triangle. Put the angles (or sides) in order from least to greatest → M - L - K , which makes L the 60° angle.

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3 years ago

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Given that 4x-5y = 21 Find x when y = -4. Give your answer as a fraction in its simplest form.

alexira [117]

Answer:

x = 1/4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

Identify

4x - 5y = 21

y = -4

Step 2: Solve for x

Substitute in y: 4x - 5(-4) = 21
Multiply: 4x + 20 = 21
[Subtraction Property of Equality] Subtract 20 on both sides: 4x = 1
[Division Property of Equality] Divide 4 on both sides: x = 1/4

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