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RideAnS [48]
2 years ago
14

Please help with this question

Mathematics
1 answer:
natita [175]2 years ago
8 0

Answer:

  12\sin{(2\theta)}\cos{(\theta)}

Step-by-step explanation:

The appropriate trig identity is ...

  \sin{a}+\sin{b}=2\sin{\left(\dfrac{a+b}{2}\right)}\cos{\left(\dfrac{a-b}{2}\right)}

Here, you have a scale factor of 6 and a=3θ, b=θ. Filling in these values gives ...

  6\sin{3\theta}+6\sin{\theta}=12\sin{\left(\dfrac{3\theta+\theta}{2}\right)}\cos{\left(\dfrac{3\theta-\theta}{2}\right)}\\\\=12\sin{(2\theta)}\cos{(\theta)}

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I need help with this
maksim [4K]

Answer:

60  and  50 per hour

Step-by-step explanation:

6 0
3 years ago
By what number should ( -5)(-1) be multiplied so that the product may be equal to (10)(-1)​
Rudik [331]
Answer: -2

(-5)(-1)x=(10)(-1)
5x = -10
x = -2
7 0
2 years ago
Find the x- and y- intercepts if the line that passes through the given points (-6,-6),(4,-2).
Paul [167]

Answer:

The x-intercept would be 9 and the y-intercept would be -18/5

Step-by-step explanation:

In order to find this we need to first find the slope. To do that we use the two points and the slope equation.

m (slope) = (y2 - y1)/(x2 - x1)

m = (-2 - -6)/(4 - -6)

m = 4/10

m = 2/5

Now that we have the slope, we can use that and either point to find the equation of the line in standard form.

y - y1 = m(x - x1)

y + 6 = 2/5(x + 6)

y + 6 = 2/5x + 12/5

-2/5x + y + 6 = 12/5

-2/5x + y = -18/5

-2x + 5y = -18

Now that we have this, we can find the intercepts through using 0s. First, we put a zero in for y to find the x intercept.

-2x + 5y = -18

-2x + 5(0) = -18

-2x = -18

x = 9

Therefore the x intercept is 9.

We find the y-intercept by doing the opposite. We put a 0 in for x.

-2x + 5y = -18

-2(0) + 5y = -18

5y = -18

y = -18/5

5 0
3 years ago
Read 2 more answers
The
olya-2409 [2.1K]

Answer:

home team

.............................................................................................

8 0
2 years ago
Read 2 more answers
The area of the Indian Ocean is what percent of the area of the Pacific ocean? ROund to the nearest whole?show your work
Bumek [7]
Pacific
64/100
Indian
25/100
64/100-25/100=39/100
39/100=39%
I'm not sure but I think 39% is the answer. Better to google it ;)
4 0
3 years ago
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