4(x+7)=38 what does x equal?

Which statement best describes the function below? \f(x)=2x^2-3x+1

goldfiish [28.3K]

Answer:

what are the two answers?

4 0

3 years ago

Ff is a trigonometric function of the form f(x)=a\sin(bx+c)+df(x)=asin(bx+c)+df, left parenthesis, x, right parenthesis, equals,

andriy [413]

The <em>trigonometric</em> function that represents the curve seen in the picture is f(x) = 4.5 · sin (π · x / 2 - π) - 6.5.

<h3>How to derive a sinusoidal expression</h3>

In this problem we need to find a <em>sinusoidal</em> expression that models the curve seen in the picture. The most typical <em>sinusoidal</em> model is described below:

f(x) = a · sin (b · x + c) + d (1)

Where:

a - Amplitude
b - Angular frequency
c - Angular phase
d - Vertical midpoint

Now we proceed to find the value of each variable:

Amplitude

a = - 2 - (-6.5)

a = 4.5

Angular frequency

b = 2π / T, where T is the period.

0.25 · T = 4 - 3

T = 4

b = 2π / 4

b = π / 2

Midpoint

d = - 6.5

Angular phase

- 2 = 4.5 · sin (π · 4/2 + c) - 6.5

4.5 = 4.5 · sin (π · 4/2 + c)

1 = sin (2π + c)

π = 2π + c

c = - π

The <em>trigonometric</em> function that represents the curve seen in the picture is f(x) = 4.5 · sin (π · x / 2 - π) - 6.5.

To learn more on trigonometric functions: brainly.com/question/15706158

#SPJ1

3 0

1 year ago

Solve the equations below:

Lelu [443]

➪ 3x = 15 - 2

➪ 3x = 13

★ $\large\pink{x = \sf{\dfrac{13}{3}}}$

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➪ 5x = 52 + 8

➪ 5x = 60

➪ x = $\sf\dfrac{60}{5}$

★ $\large\pink{x = 12}$

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➪ 2x + 2 = 14

➪ 2x = 14 - 2

➪ 2x = 12

➪ x = $\sf\dfrac{12}{2}$

★ $\large\pink{x = 6}$

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➪ $\sf\dfrac{1}{4} \times x = 12 - 6$

➪ $\sf\dfrac{1}{4} \times x = 6$

➪ $\sf 1 \times x = 6 \times 4$

★ $\large\pink{x = 24}$

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➪ $\sf 2y = \dfrac{2}{5} - \dfrac{1}{5}$

➪ $\sf 2y = \dfrac{2-1}{5}$

➪ $\sf 2y = \dfrac{1}{5}$

➪ $\sf y = \dfrac{1}{5 \times 2}$

★ $\large\pink{y = \dfrac{1}{10}}$

5 0

3 years ago

Choose the graph of the following function: f(x) =-2 sin(x)

Vlad1618 [11]

Answer:

D

Step-by-step explanation:

Graph D is your answer.

It passes thought the orgin and it has a Ampltiude of 2, also it faces upside down.

5 0

2 years ago

Read 2 more answers

Rewrite the quality 827,000,000,000,000 pico second to show :

Ilia_Sergeevich [38]

Answer:

a. 1 sig. fig. _800,000,000,000,000 picoseconds (8 x 10^14 picoseconds)

b. 2 sig. figs. 830,000,000,000,000 picoseconds (8.3 x 10^14 picoseconds)

c. 3 sig. figs. 827,000,000,000,000 picoseconds (8.27 x 10^14 picoseconds)

d. 4 sig. figs. 827,000,000,000,000 picoseconds (8.270 x 10^14 picoseconds)

e. 5 sig. figs. 827,000,000,000,000 picoseconds (8.2700 x 10^14 picoseconds)

Step-by-step explanation:

3 0

3 years ago