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Monica [59]
3 years ago
15

What is the period of the function y = 2sin x?. A. 2Pi. B. Pi. C. [-2,2]. D. All Real Numbers

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
8 0

Answer:

<h2>A. 2Pi</h2>

Step-by-step explanation:

The given function is

y=2sin(x)

Notice that the indepedent variable doesn't have any transformation, that means the period doesn't change. In other words, this function has the same period than its parent function which is 2\pi.

Therefore, the answer is A.

The image attached shows the graph of this function, there you can observe the period of the function.

Also, notice that this function is verticall stretched by a scale of 2, which doesn't change its original period.

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BEST ANSWER GETS A THANK A BRAINLIEST A % STAR REVIEW AND 10 POINTS Which of the following shows 679 rounded to the nearest 10 a
Zigmanuir [339]

Answer:

rounded to the nearest 10: 680

rounded to the nearest 100: 700

Step-by-step explanation:

9 rounds up to 10 so it would go to 80

and 6 rounds up to 10 also so it goes to 700

brainilest maybe?

7 0
3 years ago
Read 2 more answers
Translate the following phrase to a mathematical expression: a number times fifteen.
crimeas [40]

Answer:

it could either be n15

15n

because a number multiplied by 5 is

n15

but in mathematics a number comes before a letter when writing a mathematical expression

8 0
3 years ago
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1. Which equation should be used to find the area of the triangle below? *
77julia77 [94]

Answer:

See Explanation

Step-by-step explanation:

Required

Expression for area of triangle

This is calculated using

Area = \frac{1}{2} * base * height

Assume that:

base = 5cm; height = 2cm

The equation becomes

Area = \frac{1}{2} * 5* 2

8 0
3 years ago
The distance bewteen Harry and Kate is 2500 meters. Kate and Harry start walking toward one another and Kate' dog start running
Furkat [3]
Well, Kate and Harry together are walking 100 meters per minute. Which means it will take them 25 minutes to reach each other (I think). 

If the dog is running 120 meters per minute: 120 x 25 = 3,000.

The dog will run 3,000 meters (if he runs constantly to and from the spot that Kate and and Harry started).

4 0
3 years ago
Sphere B is the image of sphere A after dilation by a scale factor of 44. If the surface area of sphere B is 432 km^2, find the
Sergeeva-Olga [200]
<h2>Answer:</h2>

27 km²

<h2>Step-by-step explanation:</h2>

SA=4\pi Jr^2

  4\pi r^2_B=432

      r^2_B=\frac{108}{\pi}

      r_B=\frac{6\sqrt3}{\sqrt{50}}

r_A=\frac{r_B}{4}=\frac{3\sqrt3}{2\sqrt\pi}

S_0SA=4\pi Y\begin{matrix}2\\A\\\end{matrix}

         =4\pi\bullet\frac{27}{4\pi}

         =27\ km

   Y_B:Y_A=4=1

  SA_B:SA_A=16:1

                 432\div 16=27\ km^2

                          simple\ relation.

<em>I hope this helps you</em>

<em>:)</em>

7 0
2 years ago
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