His score changed by -20.
Because 4*-5 equals -20.
Consider this option:
1) if the angle belongs to IV quadrant, it means cos is in [0;1];
2)
using this formula cosθ=√(5/9) ⇒ cosθ=√5/3
Answer:
Yes. Distributive property
Step-by-step explanation:
3(a + b)
Opening bracket
= 3(a) + 3(b)
= 3a + 3b
Answer:
7.8%
Step-by-step explanation:
Yesterday’s price =$3.20
Today’s price =$3.45
Increase =today’s price - yesterday’s price
That’s $3.45 - $3.20
= $0.25
Percentage increase = increment /yesterday’s price x 100%
That’s $0.25/$3.20 x 100%
0.0781 x 100%
7.81
7.8%