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3 years ago

Four times a number increased by five

Mathematics

1 answer:

Ratling [72]3 years ago

7 0

Answer:

y x 4 + 5

Step-by-step explanation:

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Simplify expression show step by step (-2i)(8i)

TiliK225 [7]

Answer:

Step-by-step explanation:

Remember that $i^2 = -1$

(-2i)(8i)

$-16i^2$

$-16(-1)$

5 0

3 years ago

Find the geometric mean of 8 and 13.

Doss [256]

Find the factors from the roots, then multiply the factors together.
y
=
x
2
−
21
x
+
104

7 0

2 years ago

Find the value of x?

Burka [1]

Answer:

We know that the exterior angle of a triangle is equal to the sum of two opposite interior angle. 

Step-by-step explanation:

25x + 57 + x = 45x

26x + 57 = 45x

57 = 45x - 26x

19x = 57

Therefore x = 3

Hope it will help you

3 0

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

3 0

3 years ago

3, I cannot fail this if I do I have a F in math!! Please make sure u know it’s correct I can’t do it alone. Please show me wher

V125BC [204]

Answer: y=-3 x=6

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers