A family of 3 shares the minutes on a cellular telephone equally. suppose the cellular phone has 675 minutes per month. how many
1 answer:
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Answer:
○
Explanation:
Accourding to one of the circle equations, the centre of the circle is represented by
Moreover, all negative symbols give you the OPPOCITE TERMS OF WHAT THEY <em>REALLY</em> ARE, so you must pay cloce attention to which term gets which symbol. Another thing you need to know is that the radius will ALWAYS be squared, so no matter how your equation comes about, make sure that the radius is squared. Now, in case you did not know how to define the radius, you can choose between either method:
Pythagorean Theorem
Sinse we are dealing with <em>length</em>, we only desire the NON-NEGATIVE root.
Distanse Equation
Sinse we are dealing with <em>distanse</em>, we only desire the NON-NEGATIVE root.
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<h3>Answer:</h3>
- left picture (bottom expression): -cot(x)
- right picture (top expression): tan(x)
A graphing calculator can show you a graph of each expression, which you can compare to the offered choices.
_____
You can make use of the relations ...
... sin(a)+sin(b) = 2sin((a+b)/2)cos((a-b)/2)
... cos(a)+cos(b) = 2cos((a+b)/2)cos((a-b)/2)
... cos(a)-cos(b) = -2sin((a+b)/2)sin((a-b)/2)
Then you have ...
and ...
Answer:
a=5
Step-by-step explanation:
1. Multiply 4 and 6a by 4.
You'll get 24a + 16.
2. Subtract 16 from 136.
You'll get 120.
3. Divide 120 by 24 to get <em>a</em> by itself.
=a
a=5