ANSWER: it’s a square. All sides will look the same after turning because all sides LOOK THE SAME lol.
Answer:
v = 1
Step-by-step explanation:
-6(7v - 5) - 3 = 3(v - 6)
distribute -6 into 7v - 5
-42v + 30 - 3 = 3(v - 6)
distribute 3 into v - 6
-42v + 30 - 3 = 3v - 18
add 30 and -3 together
-42v + 27 = 3v - 18
subtract 3v from both sides
-45v + 27 = -18
subtract 27 from both sides
-45v = -45
divide by -45 on both sides
v = 1
Answer:
Step-by-step explanation:
Answer:
x > 3
Step-by-step explanation:
dotted line = > or <
Answer:
0.2036
Step-by-step explanation:
u = arcsin(0.391) ≈ 23.016737°
tan(u/2) = tan(11.508368°)
tan(u/2) ≈ 0.2036
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You can also use the trig identity ...
tan(α/2) = sin(α)/(1+cos(α))
and you can find cos(u) as cos(arcsin(0.391)) ≈ 0.920391
or using the trig identity ...
cos(α) = √(1 -sin²(α)) = √(1 -.152881) = √.847119
Then ...
tan(u/2) = 0.391/(1 +√0.847119)
tan(u/2) ≈ 0.2036
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<em>Comment on the solution</em>
These problems are probably intended to have you think about and use the trig half-angle and double-angle formulas. Since you need a calculator anyway for the roots and the division, it makes a certain amount of sense to use it for inverse trig functions. Finding the angle and the appropriate function of it is a lot easier than messing with trig identities, IMO.
