Answer:
-9/7 for the first, 0 for the second the third doesn't exist so also 0 5/3 for the final one
For this case what you should do is use the following trigonometric relationship:
tan (x) = C.O / C.A
Where
x: angle
C.O: opposite leg
C.A: adjoining catheto
Substituting the values we have:
tan (60) = long / short
tan (60) = long / 2
long = 2 * tan (60)
long = 3.46
Answer:
long = 3.46
Let c = grams of copper to be added
(grams of silver) / (grams of copper and silver) < = .90
387+%2F+%28c+%2B+387%29+%3C=+.9
387+%3C=+.9%28c+%2B+387%29
387+%3C=+.9c+%2B+348.3
.9c+%3E=+387+-+348.3
.9c+%3E=+38.7
c+%3E=+43g
At least 43 grams of copper must be added
check:
387+%2F+%28c+%2B+387%29+%3C=+.9
387+%2F+%2843+%2B+387%29+%3C=+.9
387+%2F+430+%3C=+.9
.9+%3C=+.9
answer:
center: (-2, 0)
radius: 5
explanation
re write that equation in the form if the standard circle equation
(x - ( -2))^2 + (y - 0)^2 = 5^2
therefore the circle properties are: (a,b) = -2, 0 and the radius is 5
Answer:
I don't know
Step-by-step explanation:
thanks for the pints