Notice the picture below
now, if the arc "x" is 48°, and the arc across the circle is also 48°, then those chords are congruent, notice the chords in red
Answer:
90
Step-by-step explanation:
Find total marks needed for a 90.
90 x 4 = 360 marks
Then, add up the marks on the three tests.
83+91+86 = 260 marks
Finally, subtract from the 360 marks needed.
360 - 260 = 100
Thus, the student needs to score 100 marks in order to get a 90.
Answer:
1950
Step-by-step explanation:
take half of 20 multiply it with 13 and 15
A=bh
So this is the volume of a cylinder:
V=hπr^2 to solve for h, divide both sides of the equation by πr^2
h=V/(πr^2)
The graph would be a parabola with vertex (0, 1)