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mihalych1998 [28]
3 years ago
6

PLEASEEEE SOMEONE HELP ME WITH THIS ITS DUE IN A COUPLE HOURS!!!!! FOR trigonometry

Mathematics
1 answer:
evablogger [386]3 years ago
7 0

Answer:

I think the last one is the answer

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Akimi4 [234]
Finding the value of x and y.

x:

sin 30 = 1/x
x = 1/sin 30
x = 2

y:

cos 30 = y/2
2(cos 30) = y
1.73 = y

Now the table:

sin 30 = 1/2
cos 30 = 1.73/2
tan 30 = 1/1.73

sin 60 = 1.73/2
cos 60 = 1/2
tan 60 = 1.73/1

Hope this helps :)
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3 years ago
What is the midline equation of y = -4sin (2x - 7) + 3?
Georgia [21]

Answer:

y = 3.

Step-by-step explanation:

The minimum and maximum value of \sin(2\, x - 7) over all real x are (-1) and 1, respectively. Hence, the maximum and minimum value of y = -4\, \sin(2\, x - 7) + 3 would be:

  • Maximum: y = (-4)\, (-1) + 3 = 7.
  • Minimum: y = (-4)\, (1)\ + 3 = (-1).

The midline equation of a sine wave is a horizontal line that is right in the middle of maximum and minimum y-values of that sine wave. In the sine wave in this question, the average of the maximum and minimum y\!-values is (1/2) \, (7 + (-1)) = 3. Hence, the midline equation of this sine wave would be y = 3.

4 0
2 years ago
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How many solutions will the following system of linear equations have? –2x + 4y = –7 y= -1/2x + 5 A. 0 B. 1 C. 2 D. infinite
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Answer:

B. 1

Step-by-step explanation:

they only cross at one point... look below

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3 years ago
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PLZ HELP ME. TYYYYYYYY
Rom4ik [11]

Answer:

89.1

Step-by-step explanation:

14/43 = 29/x, 14x = 1247, x = 89.1

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5 is 5% of what number w
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5 = 0.05w
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