Answer:
r
Step-by-step explanation:
10r - 9r = r
Answer:
It's 90 degrees.
Step-by-step explanation:
You have to use your instincts here, the angle is not acute, so it can't be 60. The angle is not obtuse either, so it can't be 120 or 180, leaving 90. Also the degree of the arc of a circle is usually 2x the measure of the corresponding angle.
Answer:
-5
Step-by-step explanation:
Parentheses
Exponents
Multiply
Divide
Add
Subtract
(12-9)3-2x7=
(3)3-2x7=
9-14= -5
Answer:
565.2
Step-by-step explanation:
565.2