C=2(pi)r use this equation with 9 in place of r
Hi there!
To find the perpendicular slope you need to flip the fraction and change the sign. So 1/2=2/1 and tge original slope was positive, so the slope is -2. Now you sub in the point (-7,-4) in for x and y in the formula y=mx+b and solve for b (sub in 2 for m as well)
Y=mx+b
-4=-2*-7+b
-4=14+b
-4-14=b
B=-18
The equation is y=-2x-18
Hope this helps!
They are both equivalent to 1, so they are equal.
Answer:
300
Step-by-step explanation:
30 * 10 = 300
3(a+b) and 3a+b: not equivalent
4(x+2y) and 8y+4x: equivalent
