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3 years ago

BRAINLIEST GOES TO FIRST CORRECT ANSWER, NO STEPS NEEDED

Mathematics

2 answers:

pochemuha3 years ago

6 0

Answer:

b) -4

Step-by-step explanation:

The roots are (1-sqrt5) and (1+sqrt(5)

FOIL

first:1*1 =1

outer: 1 * sqrt(5) = sqrt(5)

inner -1*sqrt(5) = -sqrt(5)

last sqrt(5) * - sqrt(5) = -5

Add them together: 1+sqrt(5) - sqrt(5) -5 = -4

azamat3 years ago

4 0

Answer:

Its option B -4

Step-by-step explanation:

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Read 2 more answers

What is the slope of the line?

shtirl [24]

Answer:

$m=\frac{1}{3}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (2, -1)

Point (-4, -3)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute [SF]: $m=\frac{-3+1}{-4-2}$
Add/Subtract: $m=\frac{-2}{-6}$
Simplify: $m=\frac{1}{3}$

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