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Ratling [72]
3 years ago
10

If sin (x-3)° = cos (2x + 6)°, then what is the value of x?

Mathematics
1 answer:
Travka [436]3 years ago
6 0

Answer:

if sin (x-3) degrees = cos (2x+6) degrees, find the value of x.

----------

Note: sin and cos are complementary functions....

sin(x) = cos (90-x)

-------------------

Your Problem:

sin(x-3) = cos(90-(x-3))

Equation:

90-[x-3] = 2x+6

90-x+3 = 2x+6

3x = 93-6

x = 31-2

x = 29

Step-by-step explanation:

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vodomira [7]
X² + 4x + 4 = 25
(x+2)² = 25
x + 2 = <span>±5
x + 2 = -5     or     x + 2 = 5
x = -5 -2               x = 5 - 2
x = -7                   x = 3

</span><span>The solutions are x=-7 and x=3</span>
7 0
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Find the sum of the geometric sequence. 1, 1/2, 1/4, 1/8, 1/16
dezoksy [38]
I would convert them all to the denominator 16, due to the smallest fraction and all of them can be converted to it.

1 = 16/16
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Hope this helps!
7 0
3 years ago
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Graph the function y = x3 + x2 – 6x + 5. What are the coordinates, to the nearest tenth, of the relative maximum of the graph? (
Debora [2.8K]

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Step-by-step explanation:edge

6 0
3 years ago
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makvit [3.9K]

Answer:

30

Step-by-step explanation:

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8 0
3 years ago
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Help please
9966 [12]

Answer:

No

Step-by-step explanation:

Triangular Inequalities state that in a triangle, the sides must always be less than the sum of the other two.

You would have sides x, 2x, 3x in this case and use the inequality a+b>c.

if...

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6 0
3 years ago
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