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4 years ago

Is it possible for you guys to read a book called the giver and then write a whole essay, can you please do it it’s due tomorrow

Mathematics

1 answer:

STatiana [176]4 years ago

4 0

Answer:

Step-by-step explanation:

We are not just going to do your writing essay for you. It's your fault you didn't get it done.

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100 points!!! Pre calculus. I need helpppppppppp

Fantom [35]

Answer:

We have function,

$y = 3 - 6 \sin {}^{} (2x + \frac{\pi}{2} )$

Standard Form of Sinusoid is

$y = - 6 \sin(2x + \frac{\pi}{2} ) + 3$

Which corresponds to

$y = a \sin(b(x + c)) + d$

where a is the amplitude

2pi/b is the period

c is phase shift

d is vertical shift or midline.

In the equation equation, we must factor out 2 so we get

$y = - 6(2(x + \frac{\pi}{4} )) + 3$

Also remeber a and b is always positive

So now let answer the questions.

a. The period is

$\frac{2\pi}{ |b| }$

$\frac{2\pi}{ |2| } = \pi$

So the period is pi radians.

b. Amplitude is

$| - 6| = 6$

Amplitude is 6.

c. Domain of a sinusoid is all reals. Here that stays the same. Range of a sinusoid is [-a+c, a-c]. Put the least number first, and the greatest next.

So using that<em> rule, our range is [6+3, -6+3]= [9,-3] So our range</em> is [-3,9].

D. Plug in 0 for x.

$3 - 6 \sin((2(0) + \frac{\pi}{2} )$

$3 - 6 \sin( \frac{\pi}{2} )$

$3 - 6(1)$

$3 - 6$

$= - 3$

So the y intercept is (0,-3)

E. To find phase shift, set x-c=0 to solve for phase shift.

$x + \frac{\pi}{4} = 0$

$x = - \frac{\pi}{4}$

Negative means to the left, so the phase shift is pi/4 units to the left.

f. Period is PI, so use interval [0,2pi].

Look at the graph above,

6 0

3 years ago

Martha is starting to save for a new laptop. She has been keeping track of her savings every day. The graph shows the number of

sammy [17]

Answer:

tell martha to buy huwei matebook x 2020 , its a good one

Step-by-step explanation:

5 0

3 years ago

How much blue paint did they use in all?

Alik [6]

Answer:

2.25 ounces

Explanation:

0 ounces - 1 X

2/4 ounces - 3 X

3/4 ounces - 1 X

so total used:

0 * 1 + 2/4 * 3 + 3/4 * 1

0 + 1.5 + 0.75

2.25

7 0

2 years ago

Julie wants to draw a triangle that is similar to a triangle on a coordinate plane. She chooses to draw a triangle with sides th

QveST [7]

In order to maintain the similarity, both x and y has to be amplified by the same ratio

So A will be correct

6 0

3 years ago

Please help! check attachment. This is grade 11 trigonometry

IgorLugansk [536]

$~~~~~~~\tan \theta = \dfrac{\text{Perpendicular}}{\text{Base}}\\\\\\\implies \tan B = \dfrac{AC}{BC}\\\\\\\implies \tan 40^{\circ} = \dfrac{10}{a}\\\\\\\implies a = \dfrac{10}{\tan 40^{\circ}}\\\\\\\implies a= 11.9~ m$

4 0

2 years ago