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3 years ago

1.13 UNIT TEST GRAPH OF SINUSOIDAL FUNCTION PART 1

Mathematics

1 answer:

Maurinko [17]3 years ago

3 0

Answer:

Step-by-step explanation:

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∠A is an acute angle in a right triangle.

slamgirl [31]

Answer: sinA=8/17 to solve for this you must use Pythagorean theorem and solve for the unknown side. Once you do that you can use SohCahToa to find the fraction that you need to solve for the angle.

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3 years ago

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During the week of a convention, there were 608 occupied hotel rooms and 342 unoccupied hotel rooms in Lindsey's city. What perc

bagirrra123 [75]

Answer:

64%

Step-by-step explanation:

Given

Occupied = 608

UnOccupied = 342

The total number of room is the sum of these 2. So

Total Room = 608 + 342 = 950 rooms

To find percentage of rooms that were occupied, we have to divide the occupied number of rooms by the total number of rooms. Then we have to multiply that answer by 100 to get the "percentage". let's do this:

$\frac{608}{950}=0.64$

Then

$0.64*100=64$

So, 64% of the rooms were occupied.

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3 years ago

The frequency of a radio wave varies inversely with its wavelength. If a 100-meter wave has a frequency of 3,000 kilohertz, what

Zarrin [17]

$\bf \qquad \qquad \textit{inverse proportional variation}
\\\\
\textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad y=\cfrac{k}{x}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------$

$\bf \textit{frequency varies inversely with its wavelength}\qquad f=\cfrac{k}{w}
\\\\\\
\textit{we also know that }
\begin{cases}
w=100\\
f=3000
\end{cases}\implies 3000=\cfrac{k}{100}
\\\\\\
300000=k\qquad thus\qquad \boxed{f=\cfrac{300000}{w}}
\\\\\\
\textit{now, when f = 500, what is \underline{w}?}\qquad 500=\cfrac{300000}{w}
\\\\\\
w=\cfrac{300000}{500}\implies w=600$

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3 years ago

Who's interested in helping?

PolarNik [594]

Answer:

answer is 8-2<5 because 8-2 is 6 and 6 is greater than 5

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3 years ago

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What is the equation of the line that passes through the point(-8,1) and has a slope of -3/4

vodka [1.7K]

Answer:

slope = -3/4

using the formula

y -y1 = m(x -x1)

y -1 = -3/4(x -(-8))

y -1 = -3/4(x +8)

cross multiply

4(y -1) = -3(x +8)

4y -4 = -3x -24

4y = -3x -24 +4

4y = -3x -20

divide both sides by 4

y = -3/4 x -5 (equation of the line)

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3 years ago