The ratio of the three angles of a triangle is 2:3:5. What are the three angles of the triangle?
2 answers:
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There are many ways to solve this. I think the easiest way for this one is to add the equations up.
The you solve that, now that y is gone. You get x=2.
Now plug in x into one of the original equations.
Finish solving, and you get y=8.
The answer is (2,8)
The you solve that, now that y is gone. You get x=2.
Now plug in x into one of the original equations.
Finish solving, and you get y=8.
The answer is (2,8)
Answer:
The constant of variation is k = -2 ⇒ (B)
Step-by-step explanation:
The equation of the direct variation is y = k x, where
- k is the constant of variation
- The constant of variation k =
The given table has 4 points (-1, 2), (0, 0), (2, -4), (5, -10)
We can use one of the points <em>[except point (0, 0)]</em> to find the value of k
∵ (-1, 2) is a given point
∴ x = -1 and y = 2
∵ k =
→ Substitute the values of x and y in the relation above
∴ k =
∴ k = -2
The constant of variation is k = -2
Answer:
Step-by-step explanation:
Looking at the graph, we can see the domain to be from (0 , 2π).
Now we have to find one period that corresponds to cos(x).
The half-period of cos(x) for this graph appears to be pi/3 and adding another pi/3 gets us 2pi/3 to be our cosine period.
b = 2pi/3
a is the same range as cos(x). Range: (0,0)
y = [a] * cos ([b]*x)
y = [1] * cos([2pi/3]x)