Answer:
C = 25 + 3n
Step-by-step explanation:
Andre has a summer job selling magazine subscriptions.
We are told that:
Andy earns $25 per week plus $3 for every subscription he sells.
Let us represent
C = Total amount of money he makes this week
n = the number of magazine subscriptions Andre sells this week.
Hence, Our Algebraic expression =
C = $25 + $3 × n
C = 25 + 3n
Answer:
D - 72
Step-by-step explanation:
32 divided by 4 is 8.
So 8 times 5 is 40.
32 plus 40 equals 72.
3a-7=-4b+1
3a-8=4b
(3a/4)-2=b
The tangent vector is by definition the derivative of r(t) with respect to t:
<span>T' = dr/dt = <6t, tsin(t), tcos(t)> </span>
<span>The unit vector T = T'/|T'| = <6t, tsin(t), tcos(t)>/sqrt(36t^2 + t^tsin(t)^2 +t^2cos(t^2)) </span>
<span>T = <6t, tsin(t), tcos(t)>/(t*sqrt(37)) = <6, sin(t), cos(t)>/sqrt(37) </span>
<span>Now the normal unit vector N is perpendicular to r/|r| and T. It is the second derivative of r/|r| with repsect to time </span>
<span>N' = d^2r/dt^2 = <6, sin(t) + tcos(t), cos(t) - tsin(t)> </span>
<span>N= N'/|N'| = <6, sin(t) + tcos(t), cos(t) - tsin(t)>/sqrt(36 + sin^2t +2tsin(t)cos(t)+t^2cos^2t + cos^2(t) -2tcos(t) sin(t) +t^2sin^2t) </span>
<span>N = <6, sin(t) + tcos(t), cos(t) - tsin(t)>/sqrt(37 +t^2)</span>
Answer: y=3x-4
Step-by-step explanation: Use the slope formula and slope-intercept form y=mx+b to find the equation.
Hope this helps you out! ☺
