The sample is biased, because the members of the math club are not the only people that study
Answer:
False equation: -2|8 - 6| - 6 = -10
Step-by-step explanation:
-2|8 - 6| - 6 = -12 True or false?
-2 | 2| - 6 = -12 Substract 8 - 6 = 2
-2 × 2 - 6 = -12 |2| = 2 absolute value of 2 is 2
- 4 - 6 = -12 -2 × 2 = -4 ( negative times positive = negative)
-10 = -12 False
Answer:
-45
Step-by-step explanation:
hope this helps
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°)
