Answer:
C
Step-by-step explanation:
Given 2 intersecting chords in a circle, then
The product of the parts of one chord is equal to the product of the parts of the other chord, that is
x × x = 4 × 9
x² = 36 ( take the square root of both sides )
x =
= 6 → C
The easiest way is to just solve the equation.
4x - 4 = -4x + 60
4x + 4x = 4 + 60
8x = 64
x = 8
A slower way to do this is to plug each of the numbers into the equation to see which makes the equation is true.
So for A.
4(8 - 1) = -4(8) + 60
4(7) = -32 + 60
28 = 28
Fortunately, this is true, so A is the answer and you don't have to try the other options.
The answer is given by the empirical rule, 68%.
Answer:
2 cups of flour
Step-by-step explanation:
If you have 2 and 2/3 cups milk for every cup of flour then 4 and 1/3 is 2 2/3 times two so 1 cup of flour times 2 is 2 cups of flour.