Answer:
Step-by-step explanation:
2x²+8=80
2x²=80-8=72
x²=72/2=36
x=±√36
x=±6
so x=6 is one solution other is x=-6
Im gonna assume you are solving for x, the equation (x + 3)2 = 49 x is equal to 21.5 or 21 and 1/2. however the rest aren’t equations they’re just x = number and there isn’t much to do with that
Make it into y = mx + b
2y = -3x + 6
Divide by 2
Y = -3/2x + 3
The slope is -3/2
A= 3.14 r^2 = 3.14 * 1^2 = 3.14159
since the R of the circle is r=1 the answer is 3.14159
Answer:
it would be 60 degrees
Step-by-step explanation: Every 5 minutes on a clock there is a big number, and there are 12 of those. 360/12 is 30 degrees, so every hour, the hour hand moves 30 degrees.
