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1 answer:
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Answer:
x = 5
Step-by-step explanation:
using the sine or cosine ratio in the right triangle and the exact value
sin30° = , then
sin30° = =
=
( cross- multiply )
2x = 10 ( divide both sides by 2 )
x = 5
Answer:
Step-by-step explanation:
<u>Equation of a circle</u>
(where (a, b) is the center and r is the radius)
Given:
- center = (5, 1)
- diameter = 4√5
Diameter = 2r (where r is the radius)
⇒ r = 4√5 ÷ 2 = 2√5
Substituting these values into the equation:
ANSWER
EXPLANATION
A basic sine curve has equation in the form:
Where 'a' is the amplitude.
In this case a=2 because the amplitude is 2.
For a transformed sine function, the general equation is:
where a=2 is still the amplitude
This is also a sine function with an amplitude of 2.
Others include:
e.t.c