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3 years ago

(GIVING BRAINLIEST!!!)

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

6 0

Answer:

A) 81 minutes

Step-by-step explanation:

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How do you solve cos((π/6)x)=0

zlopas [31]

$\bf cos\left( \frac{\pi }{6}x \right)=0\implies cos^{-1}\left[ cos\left( \frac{\pi }{6}x \right) \right]=cos^{-1}(0)
\\\\\\
\cfrac{\pi x}{6}=cos^{-1}(0)\implies \cfrac{\pi x}{6}=
\begin{cases}
\frac{\pi }{2}\\\\
\frac{3\pi }{2}
\end{cases}\\\\
-------------------------------$

$\bf \cfrac{\pi x}{6}=\cfrac{\pi }{2}\implies \pi x=\cfrac{6\pi }{2}\implies x=\cfrac{6\pi }{2\pi }
\implies \measuredangle x=\stackrel{radians}{3}\\\\
-------------------------------\\\\
\cfrac{\pi x}{6}=\cfrac{3\pi }{2}\implies\pi x=\cfrac{18\pi }{2}\implies x=\cfrac{18\pi }{2\pi }\implies \measuredangle x=\stackrel{radians}{9}$

7 0

4 years ago

Consider f(x) = 1.8x – 10 and g(x) = −4.

erastova [34]

Answer:

Step-by-step explanation:

The input value at which f(x) = g(x) can be found by setting the right sides of each of those equal to each other and solving for x.

1.8x - 10 = -4 and

1.8x = 6 so

x = 3 1/3

The bold equation is the answer to the first part, and the second part is that x = 3 1/3

6 0

3 years ago

Read 2 more answers

Which of the following is an equation for a line that is NOT parallel to the other three?

galben [10]

The equation of the line that is not parallel to others is (C) 2x-3y= -1

<h3>How to determine the equation of the line is not parallel?</h3>

From the question, we have the following parameters that can be used in our computation:

A) 3x-2y=5

B) -3x+2y=9

C) 2x-3y= -1

D) -3x+2y=8

Make y the subject in equations

So, we have the following representation

A) y = 3/2x - 5/2

B) y = 3/2x + 9/2

C) y= 2/3x + 1/3

D) y = 3/2x + 4

As a general rule of linear equations

Parallel lines have equal slope

A linear equation is represented as

y = mx + c

Where

slope = m

Using the above as a guide, we have the following:

A) y = 3/2x - 5/2 ⇒ slope = 3/2

B) y = 3/2x + 9/2 ⇒ slope = 3/2

C) y= 2/3x + 1/3 ⇒ slope = 2/3

D) y = 3/2x + 4 ⇒ slope = 3/2

Hence, the line that is not parallel is (c)