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3 years ago

12

What is the functions domain ?

1 answer:

Jobisdone [24]3 years ago

6 0

$f(x)=x+5;\ y\in\{7;\ 9\}\\\\x+5=7\ \ \ |-5\\x=2\\\\x+5=9\ \ \ |-5\\x=4\\\\\text{The domain is:}\ \{2;\ 4\}$

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3 years ago

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3 years ago

X^4 − 3x^2 − 90 x= -3

Ahat [919]

Answer:

-36

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

x⁴ - 3x² - 90

x = -3

<u>Step 2: Evaluate</u>

Substitute in <em>x</em>: (-3)⁴ - 3(-3)² - 90
Exponents: 81 - 3(9) - 90
Multiply: 81 - 27 - 90
Subtract: 54 - 90
Subtract: -36

8 0

3 years ago

Explain the steps in finding the midpoint of the points (-1,2) and (3,-6). The state the midpoint

blondinia [14]

Answer:

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Step-by-step explanation:

midpoint x = (x₁ + x₂) / 2

midpoint y = (y₁ + y₂) / 2

$(\frac{-1 + 3}{2} , \frac{2 + -(6)}{2} )$

= (1, -2)

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4 years ago

What is the product of -3/8 and -4/12

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Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers