<span>a. True
The question is pretty much the entire definition of a radian. For an unit circle, its entire circumference is 2π and the entire circle has 2π radians. A quarter circle, or 90°, or π/2 radians, have 1/4th of the circumference. And 2π/4 is π/2. This natural relationship is WHY higher mathematics uses radians for the measurement of angles rather than arbitrary units such as degrees.</span>
126 1/4 - 78 2/3 = ?
turn into mixed fractions
504/4 - 236/3 =?
find the least common denominator
1512/12 - 944/12 = ?
subtract
568/12
turn into improper fraction
47 1/3
The difference <span>between 126 1/4 and 78 2/3 is 47 1/3</span>
Answer:
- (27n^3 - 12n - 1) over 3n
Step-by-step explanation:
The answer is C. The numerator 7x+14 can be factored as 7(x+2). The denominator 2x^2+2x-6 can be factored as (x+2)(2x-3). The greatest common divisor of 7(x+2) and (x+2)(2x-3) is obviously x+2, which is contained in both of the two expressions.
Answer:
. y2 = 12x 40:12 :3 2. x² = -8y 408 3. (x + 2)2 = -4(y-1). \(-2,1) opens v. F-2,0) ... F (0:2). V(0,-2). F(4,2)
Step-by-step explanation:
