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3 years ago

Find the sum to d 1.5d+3.25=1+2.25d

Mathematics

1 answer:

Alex787 [66]3 years ago

6 0

Answer:

D = 3

Step-by-step explanation:

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Explain why the solution to 3r=2 must be less than 1

Snezhnost [94]

Answer:

see below

Step-by-step explanation:

3r=2

We know that r must be less than 1 because we are multiplying 3 by a number and getting 2

Taking a larger number and multiplying by r and getting a smaller number means the number must be less than 1

Divide each side by 3

3r/3 = 2/3

r = 2/3

2/3 is less than 1

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3 years ago

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What is the slope of (0,-8) and (-4,9)

Musya8 [376]

Answer:

m=-17/4

Step-by-step explanation:

Slope is equal to m= y-y/x-x

Therefore it will be 9-(-8)/-4-0

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3 years ago

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I need help REALLY FAST what is the distance between the points (-1, -3 3/4) and (-1, 4 1/2) ?

kodGreya [7K]

Answer:

8 1/4

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)

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Identify

Point (-1, -3.75)

Point (-1, 4.5)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(-1--1)^2+(4.5--3.75)^2}$
[√Radical] (Parenthesis) Subtract: $\displaystyle d = \sqrt{(0)^2+(8.25)^2}$
[√Radical] Evaluate exponents: $\displaystyle d = \sqrt{0+68.0625}$
[√Radical] Add: $\displaystyle d = \sqrt{68.0625}$
[√Radical] Evaluate: $\displaystyle d = 8.25$