Answer:
-4/5
Step-by-step explanation:
r=x/2
a=2x
ar²=-1/16
x^3=-1/8
x=-1/2
sn=a/1-r
=-4/5
Answer:5.5
Step-by-step explanation:
2y-9=-2
+9 +9
2y/2 = 11/2
5.5
Answer:
48% of people do NOT like walking
Step-by-step explanation:
First, write it as a fraction 13/25 (People who like jogging)
We want to find out the number of people who DON'T like walking, so we subtract 25-13=12. Put 12/25.
Lastly, convert into a percentage. Percent is out of 100, so we need to make the fraction out of 100. To do this multiply the numerator and the denominator by 4. 48/100.
=
48%
Hope this helps,
Nathan
Answer:
It's the last choice:
2x + y - 1 = 0.
Step-by-step explanation:
x - 2y - 3 = 0
Convert to slope-intercept form in order to find the slope:
-2y = -x + 3
y = 1/2x - 3/2
So the slope is 1/2. The slope of a line perpendicular to this is -1 / 1/2 = -2.
Using the point-slope form to find the required equation:
y - y1 = m(x - x1)
x = 4 and y = -7 so we have:
y + 7 = -2(x - 4)
y + 7 = -2x + 8
2x + y - 1 = 0 is the answer.
The answer is going to be B
