Answer:
∠A = 22°
Step-by-step explanation:
Given:
We take inverse of sine to find angle A.
So, 
°
22.23° rounded to nearest whole degree is 22°.
∴ 
°.
These are so easy, you won't believe it !
A negative exponent only means
"Put all of this in the denominator, and make the exponent positive."
So (any number)^negative power =
1 / (the same number)^(the same power but not negative) .
The first few problems on that sheet:
1). 5^-3 = 1 / 5^3
2). 6^-10 = 1 / 6^10
3). (-2)^-5 = 1 / (-2)^5
Got it ? You can do the rest of them now in about 2 minutes.
Answer:
6.25
Step-by-step explanation:
(x-a)^2=x^2-2ax+a^2
2a=5
a=2.5
2.5 ^ 2 = 6.25
Answer:48
Step-by-step explanation:
4x12=48
Chord AB = ?
Chord AB = AC + CB
Chord HI = HC + CI
HC = 7
CI = 28
Chord HI = 7 + 28 = 35
Chord AB = Chord HI
CB is 4 times the Length of AC. Let AC be X.
x + 4x = 35
5x = 35
x = 35/5
x = 7
AC = x = 7
CB = 4x = 4(7) = 28
