Answer:
5/2-7/2 i or 2.5-3.5i
Step-by-step explanation:
expand the fraction remove the parenthesis and then calculate
Equation: 59.95+4x=64.95+2x
Solve for x:
2x=5
x=2.5
$2.5 for one pair of socks
Answer: 12 girls to 27 students
5 boys to 9 students
15 boys to 12 girls
HOPE THIS HELPS
CAN U PLEASE GIVE ME BRAINLIEST
I believe notation one would be 8:9 and notation two would be 8 to 9
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
sin²x + cos²x = 1
Consider the left side
2cos²A - 1 ← replace 1 by sin²A + cos²A
= 2cos²A - ( sin²A + cos²A)
= 2cos²A - sin²A - cos²A
= cos²A - sin²A = right side ⇒ verified