30
Figure A
25
Figure B
10
What is the value of x?

x = 12

Step-by-step explanation:

From the similar figures given in the picture,

(Figure A ~ Figure B)

Corresponding sides of the figures will be proportional.

By this property of the similarity,

x =

x = 12

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.