Answer:
B should be.
Step-by-step explanation:
all options, other than B have two values in set B(y) for at least 1 value of x
hence they are not functions, as a function contains unique image of x
We know that
360°/12 hour-----------> 30°/hour
<span>Central angle at 4 .00 is 120 degrees
the radius of a clock is 6/2-----> r=3 in
length of a circumference=2*pi*r-----> 2*pi*3----> 18.84 in
the minor arc at 4 .00 is for a central angle of 120</span>°
so
if 360° (full circle)---------> has a length of 18.84 in
120°----------------------> X
X=120*18.84/360-------> X=6.28 in
the answer is
6.28 in
You have to get rid of 1/2 by multiplying it by its recriprocal which is like this:
1) 1/2 x 2/1 which equals to zero and you do the same to the other side.
2) -12 x 2/1 = -24x then multiply-24x with 7 which equals -168.
16-x= -24x -168
3) subtract 16 to the other side and subtract 24x with x
23x= -184
4) divide by 23 to isolate x and you get -8
5) x=-8
Answer:
x = 111
Step-by-step explanation:
1.) x + (x + 1) + (x + 2) = 336
2.) x + x + 1 + x + 2 = 336
3.) 3x + 3 = 336
4.) 3x = 333
4.) x = 111
Check Work:
1.) 111 + (111 + 1) + (111 +2) = 336
2.) 111 + 111 + 1 + 111 + 2 = 336
3. ) 222 + 1 + 111 + 2 = 336
4.) 222 + 114 = 336
5.) 336 = 336
