How do you know the shaded circle are 3/4 of the entire circle on page 271 question 4
How does the arc length equal the radian measure of angle AOB ? (question 2 on page 271)
For question 5 on page 242(Angles, Triangle and Polygons), could you explain why the triangle was put into 60,30,90 right triangle and how you came up with b/2 *square root of 3 as the height?
if y is inversely proportional to x and y = 41 when x = 10, what is the value of y when x =7?
Could you further explain your explanation of Practice Question #4 in PWN the SAT Math Guide “Polynomials” chapter (p. 148). In your long division confirmation of the answer (explanation p. 326), how do you know to divide by 9x + 1?
if f(2x+3)=4x-7 for all values of x, for what value of t is f(t)=1
For #2 on the functions chapter, could you have just added 1 to each side to get f(x) by itself?
I’m having trouble wrapping my head around your previous explanations and wanted to confirm that this method works.