Answer:
Sin 90°=1
Step-by-step explanation:
A unit circle is a circle with a radius of 1 .Because the radius is 1, it is possible to directly measure the sine, cosine and tangent.
<em>using the unit circle where 90° is the limit as the hypotenuse approaches the vertical y-axis which is positive.</em>
Sine=opposite/hypotenuse
Sin=O/H
<u>Applying the limits</u>
Sine 90°=1/1= 1
cos 90° =0/1 =0
or
When the angle formed at the origin of the unit circle in the 1st quadrant is 0°, cos 0°=1 sin0°=0 and tan 0°=0
When we increase the angle until it is 90°, cos 90°=0, sin 90°=1 and tan 90°=undefined
If it costs $60 for 200 minutes you can do $60 divided by 200 to find how much money it costs per minute which equals .3 or 3 cents a minute. so if you have 1272 minutes you can multiply that by .3 and it equals $381.60
Answer:
x = 2
Step-by-step explanation:
x = 7 is a vertical line parallel to the y- axis.
Thus a parallel line will also be vertical with equation
x = c
where c is the value of the x- coordinates the line passes through.
The line passes through (2, - 5) with x- coordinate 2, thus
x = 2 ← equation of parallel line
Answer: mathematical way that’s what I use
Step-by-step explanation:
Answer:
The annual interest rate was $1487.50
Step-by-step explanation:
All you do is 2975 divided by2=1487.50
