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3 years ago

What is the slope of the line that passes through the points (9, 5) and (21, 1)?

Mathematics

1 answer:

AleksandrR [38]3 years ago

5 0

Answer:

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

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m = \frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (9, 5)

Point (21, 1)

Step 2: Solve for slope m

Substitute in points [Slope Formula]: $\displaystyle m = \frac{1-5}{21-9}$
[Fraction] Subtract: $\displaystyle m = \frac{-4}{12}$
[Fraction] Simplify: $\displaystyle m = \frac{-1}{3}$

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Colt1911 [192]

Answer:

Answer: 1/81

First you simplify it to 3^-4

Then express it with a positive exponent

which goes to 1/3^4

Then evaluate it to 1/81

6 0

2 years ago

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Please help ASAP thanks

hjlf

Answer:

x = 2.5 inches. Or

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Step-by-step explanation:

Length: 7 + 2x

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Solution

4x^2 + 10x + 14x + 35 = 120 Subtract 120 from both sides. Add xs

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4x^2 + 24x - 85 = 0 Factor

(2x + 17)(2x - 5)

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x = 2.5

Note: I don't know which one the computer is looking for.

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2 years ago

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4. Kenneth needs to repaint a wall in his bathroom. The wall is 8 feet high and 14 feet long. Part of

AlexFokin [52]

Answer:

96 * 144 - 168 * 42

Step-by-step explanation:

So the area of the wall is 96 * 144

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2 years ago

The histogram shows the number of miles driven by a sample of automobiles in New York City. What is the maximum possible number

hjlf

Answer:

The maximum possible number of miles traveled by an automobile included in the histogram is 40,000 miles.

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mojhsa [17]

Answer:

The Two Column Proof is given below.

Step-by-step explanation:

Given:

$\overline{MP} \cong \overline{MN}$

$\overline{PO} \cong \overline{NO}$

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In Δ MPO and Δ MNO

STATEMENT REASONS

1. MP ≅ MN 1. Given

2. PO ≅ NO 2. Given

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4. ΔMPO ≅ ΔMNO 4. Side-Side-Side congruence test}

5. ∠MPO ≅∠MNO 5. Corresponding parts of congruent Triangles

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