The length around the circle is called the circumference, the length aross the circle is the diameter and half of that is called the radius.
Answer:
C
Step-by-step explanation:
y = 2x + 5
the slope (m) of this line is 2 (which can be written as 2/1)
The slope of a perpendicular line is -1/m (the reciprocal of the slope with the opposite sign)
so m = 2/1 => -1/m = - 1/2 = the slope of a line perpendicular to y = 2x + 5
The anser is false that what i think ):):(:(:(:(:(:
Answer:
The answer is a. cos2x - sin2x - sin x. Use the rule: cos2x = (cos^2)x - (sin^2)x. So, substitute cos2x in the expression: cos2x - sinx = ((cos^2)x - (sin^2)x) - sinx = (cos^2)x - (sin^2)x - sinx. Therefore, choice a. is correct choice.
Answer:
Maybe 12.56
Step-by-step explanation:
Well, the question is a bit hard to read, but I assume the radius is equal to 2?
The formula for the area of a circle is п*r*r
The number п is equal to 3.14
so п*2*2 = 3.14*4 = 12.56
Though if the radius is not 2, try to use that formula and if you cant get it please let me know in the comments
