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Simora [160]
3 years ago
12

A ladder leaning against a wall makes an angle of 45º with the ground. If the length of the ladder is 20 feet, find the approxim

ate distance of the foot of the ladder from the wall.
Mathematics
1 answer:
Sveta_85 [38]3 years ago
6 0

Answer:The way to answer this would be to show you a calculator's answer

Step-by-step explanation:

https://www.calculator.net/triangle-calculator.html?vc=45&vx=&vy=20&va=90&vz=&vb=45&angleunits=d&x=62&y=20

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Amplitude of 16 units, a period of 5 units, a vertical displacement of 3 units up and a phase shift of 2.5 units left.
allochka39001 [22]

The question is incomplete. The complete question is :

A sine function that has an amplitude of 16 units, a period of 5 units,a vertical displacement of 3 units up and a phase shift of 2.5 units left. Graph this function and show each step.

Solution :

The standard form of the sine function is

y = a sin (bx - c) + d

Here given :

Amplitude, a = 16

Period :   $\frac{2 \pi}{|b|} = 5$

            ⇒ $b = \frac{2\pi}{5}$

Phase shift :  $\frac{c}{b} = 2.5$

                   $\Rightarrow \frac{c}{2 \pi/5}=\frac{5}{2}$

                  ∴ $c = - \pi$

The vertical displacement : d = 3 units up

Now substituting a, b, c and d values in the standard form gives :

$y = 16 \sin \left( \frac{2 \pi}{5}x -(- \pi)\right) + 3$

$y = 16 \sin \left( \frac{2 \pi}{5}x + \pi\right) + 3$

The graph is attached below.

4 0
3 years ago
Help is it b???????????????
Shalnov [3]

Answer:

D

Step-by-step explanation:

3 0
3 years ago
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Which equation is equivalent?
GarryVolchara [31]

Answer:

C

Step-by-step explanation:

8 0
3 years ago
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If the function is one-to-one, find its inverse. If not, write "not one-to-one." f(x) = -8x + 1
aleksklad [387]

Answer:

f^{-1}(x)=-\frac{1}{8} x +\frac{1}{8}

Step-by-step explanation:

A linear function is always a one-to-one function.

Switch y and x.

x = -8y + 1

-1/8x + 1/8 = f(x)

8 0
3 years ago
A caterer prepared a turkey that weighed 27 1/2 pounds. Each serving of turkey will be 1/3 pound. How many whole servings will t
Kaylis [27]

Answer:

82.5000001 Close to around this ( maybe .11 off)

Explanation:

27.5 ÷ .33333333 = 82.5000001

7 0
3 years ago
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