Answer:
Step-by-step explanation:
192 ÷ 420 = 0.457
0.457 x 100 = 45.7
But there can't be a percentage increase or decrease because there is no percentage to compare it to, there should be information for the change in students of the last year
Answer:
Option C. cos70°
Step-by-step explanation:
we know that
If two angles are complementary, then the sine of one angle is equal to the cosine of the other angle and the cosine of one angle is equal to the sine of the other angle
Remember that
Tow angles are complementary , if the sum of their angles is equal to 90 degrees
so
If A+B=90°
then
sin(A)=cos(B)
cos(A)=sin(B)
In this problem we have
A=20°
B=90°-20°=70°
therefore
sin(20°)=cos(70°)
cos(20°)=sin(70°)
Answer: [6x]
Step-by-step explanation:
(8 - 9x) = [1x]
(-10 + 7x) = [17x]
(14 - 16x) = [2x]
(12 - 24x) = [12x]
12x - 2x - 17x - 1x =
10x - 16x = [6x]
Answer:
Try working from Right to left
Step-by-step explanation:
That way the exponits will work out.
