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Mathematics, 29.05.2021 01:00 BePaige

Solve using the quadratic formula. Approximate answers to the nearest tenth.

Solve using the quadratic formula. Approximate answers to the nearest tenth.

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Answer from: jchay02

$\displaystyle x = 2, \ 3$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Standard Form: ax² + bx + c = 0Quadratic Formula: $\displaystyle x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}$

Step-by-step explanation:

Step 1: Define

Identify variables

x² - 5x + 6

↓

a = 1, b = -5, c = 6

Step 2: Solve for x

Substitute in variables [Quadratic Formula]: $\displaystyle x = \frac{5 \pm \sqrt{(-5)^2-4(1)(6)}}{2(1)}$ [√Radical] Evaluate exponents: $\displaystyle x = \frac{5 \pm \sqrt{25-4(1)(6)}}{2(1)}$ [√Radical] Multiply: $\displaystyle x = \frac{5 \pm \sqrt{25-24}}{2(1)}$ [√Radical] Subtract: $\displaystyle x = \frac{5 \pm \sqrt{1}}{2(1)}$ [√Radical] Evaluate: $\displaystyle x = \frac{5 \pm 1}{2(1)}$ Multiply: $\displaystyle x = \frac{5 \pm 1}{2}$ Add/Subtract: $\displaystyle x = \frac{4}{2}, \ \frac{6}{2}$ Divide: $\displaystyle x = 2, \ 3$

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Answer from: Quest

the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.

step-by-step explanation:

brand = spend $ 135.85 total

store = spend $80.07 total

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Answer from: Quest

45

step-by-step explanation:

to find a percentage, add a decimal in front and multiply it by the other number.

.25 times 180= 45

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