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3 years ago

Solve the system by substitution ( find the intersection) y=-2x+18 y=8

Mathematics

1 answer:

Leona [35]3 years ago

7 0

Answer: x = 5

Step-by-step explanation:

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Find the distance between the points (5,-6), (-3,12)

grigory [225]

Answer:

$\displaystyle d = 2\sqrt{97}$

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

Point (5, -6)

Point (-3, 12)

Step 2: Find distance d

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

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(-3-5)^2+(12+6)^2}$
[√Radical] (Parenthesis) Subtract/Add: $\displaystyle d = \sqrt{(-8)^2+(18)^2}$
[√Radical] Evaluate Exponents: $\displaystyle d = \sqrt{64+324}$
[√Radical] Add: $\displaystyle d = \sqrt{388}$
[√Radical] Simplify: $\displaystyle d = 2\sqrt{97}$

8 0

3 years ago

TWO questions! PLEASE HELP ME!

Mariulka [41]

Answer:

The first one is C I don't know the second one though

Step-by-step explanation:

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3 years ago

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2. What is the 50th term in the sequence t(n) = 2 + 8n?

kap26 [50]

Answer:

402?

2+ 8(50)?

not sure

Step-by-step explanation:

if so mark the brainliest!

3 0

3 years ago

the height of a rectangular solid is five times its widthand its length is 8 times its height.if volume is 102.4cm^2find length

irina [24]

Answer:

hmmm

Step-by-step explanation:

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3 years ago

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An inverse variation function has a k value of 8. Which ordered pair is on the graph of the function?

Sladkaya [172]

For inverse variation, we use the equation y = k/x, again, with k as the constant of proportionality. When one variable increases the other decreases in proportion so that the product is unchanged. Therefore, it would be the last option the correct answer.

y = k / x
2 = k / 4
k = 8

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3 years ago

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