A circle is 360° all the way around; therefore, if you divide an arc's<span> degree </span>measure<span> by 360°, you </span>find<span> the fraction of the circle's circumference that the </span>arc<span> makes up. Then, if you multiply the length all the way around the circle (the circle's circumference) by that fraction, you </span>get<span> the length along the </span>arc<span>.</span>
Adding another card with value $25 would decrease the standard deviation
because it is closer to the mean the the current standard deviation.
The measure of the angle is half the measure of the opposite arc.
.. ? = 78°/2 = 39°
Answer:
x
Step-by-step explanation:
The answer to

= x
Answer:
25
Step-by-step explanation:
2x+2+5x+3=180 (angles on a straight line)
7x+5=180
7x=180-5
7x=175
x=25 (dividing both sides by 7)