<h3>
Answer: B) Only the first equation is an identity</h3>
========================
I'm using x in place of theta. For each equation, I'm only altering the left hand side.
Part 1
cos(270+x) = sin(x)
cos(270)cos(x) - sin(270)sin(x) = sin(x)
0*cos(x) - (-1)*sin(x) = sin(x)
0 + sin(x) = sin(x)
sin(x) = sin(x) ... equation is true
Identity is confirmed
---------------------------------
Part 2
sin(270+x) = -sin(x)
sin(270)cos(x) + cos(270)sin(x) = -sin(x)
-1*cos(x) + 0*sin(x) = -sin(x)
-cos(x) = -sin(x)
We don't have an identity. If the right hand side was -cos(x), instead of -sin(x), then we would have an identity.
The different ways that they can vote is given as 16 different ways.
<h3>How to calculate the ways that they can vote</h3>
The question say that there are a total of 4 members of the board. Out of these 4, we have the choices as yes or a no.
This tells us that each person only has 2 choices of what they want.
Hence given that the board members ar 4, we would have 2⁴
= 2 * 2 * 2 * 2
= 16
Hence the different ways that they can all vote is 16.
Read more on permutations and combinations here:
brainly.com/question/4658834
SPJ1
Answer:
If you invest there is a chance your money will gain value, leaving it and saving it will make the money slowly lose value from inflammation, This makes it a pretty difficult choice as if the stocks crash James loses a lot of money but, it can rise in value it will be worth it.
im saying invest it.
Answer:
1956.2 ft-lb
Step-by-step explanation:
We are given that force of the wagon
Displacement of the wagon =45 i
We know that
Work done, W=
Substitute the values then we get
Hence, Work done on the wagon=1956.2 ft-lb
Answer:
x = 50
Step-by-step explanation:
<em><u>The first step is to subtract 6 from both sides:</u></em>
- 6 - 6
___________
= -12.5
<u><em>The fraction </em></u><u><em>, is really just </em></u>
<u><em>:</em></u>
= -12.5
<em><u>Multiply both sides by -4:</u></em>
x = 50
