ANSWER:
60°
EXPLAINATION:
= 2r + θ/360°× 2 x 227 x 21
64 = 2 x 21 + θ/360° x 2 x 22/7 x 21
64 = 42 + θ/360° x 44 x 3
64 - 42 = θ/360° x 11 x 3
22 = 33θ/90
θ=22×30/11
= 60°
6^-3 / 6^5
= 6^(-3-5)
= 6^-8
= 1 / 6^8
hope it helps
We can add in any order. So 5x+y is the same as y+5x
5x+y = 10
y+5x = 10
y+5x-5x = 10-5x ... subtract 5x from both sides
y+0x = -5x+10
y+0 = -5x+10
y = -5x+10
Answer: y = -5x+10
Note: this is in y=mx+b form where m = -5 is the slope and b = 10 is the y intercept
The quadratic formula is:

and

Let's identify our a, b, and c values:
a: -1
b: 1
c: 12
Plug in the values for a, b, and c into the equation. Let's do the first equation:

Simplify everything in the radical:

Simplify the radical:

Combine like terms:

Simplify:

This is one solution, now, let's solve for the other equation:
Since when simplified, everything is the same except the subtraction sign, we can skip the simplification again and change the sign to subtraction:

Combine like terms:

Simplify:

Your final answers are:

