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3 years ago

Evaluate x=5: 6+(10-x)^2-20

Mathematics

2 answers:

Simora [160]3 years ago

5 0

6 + (10 - x)² - 20
= 6 + (10 - 5)² - 20
= 6 + (5)² - 20
= 6 + 25 - 20
= 11 ← answer

miv72 [106K]3 years ago

3 0

6+(10-5)^2-20
6+5^2-20
6+25-20
31-20
11

Final answer:11

Remember, grouping and parantheses first, then exponents, and finally addition and subtraction

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Answer:

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Step-by-step explanation:

50=45

495=?

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First we need to know the total volume of concrete used:
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3 years ago

Solve 5x – 1 = 3x – 15. Explain each step, and include the Properties of Equality that you used.

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5x – 1 = 3x – 15

Subtraction Property of Equality (Subtract 3x from both sides)

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Addition Property of Equality (Add 1 to both sides)

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3 years ago

Value of the derivative of g(x)=8-10Cosx at 'x=0' is?

VLD [36.1K]

Answer:

g'(0) = 0

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation

Pre-Calculus

Unit Circle

Calculus

Derivatives
Derivative Notation
The derivative of a constant is equal to 0
Derivative Property: $\frac{d}{dx} [cf(x)] = c \cdot f'(x)$
Trig Derivative: $\frac{d}{dx} [cos(x)] = -sin(x)$

Step-by-step explanation:

Step 1: Define

g(x) = 8 - 10cos(x)

x = 0

Step 2: Differentiate

Differentiate [Trig]: g'(x) = 0 - 10[-sin(x)]
Simplify Derivative: g'(x) = 10sin(x)

Step 3: Evaluate

Substitute in x: g'(0) = 10sin(0)
Evaluate Trig: g'(0) = 10(0)
Multiply: g'(0) = 0

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3 years ago