Here is someone's solution to the equation 3x2 – 42 = 20.
Q=3 b = -4 C = 20
-b + 6² - 4ac
20
-4+(-4)2 - 4(3)(20)
2(3)
-4Ł V-16 - 240
6
-4 V-256
6
No solutions
Identify 3 of the 4 errors and briefly explain why it is an error.

No joke answers or will be reported

Find the arc length parameter along the given curve from the point where tequals=0 by evaluating the integral s(t)equals=integral from 0 to t startabsolutevalue bold v left parenthesis tau right parenthesis endabsolutevalue d tau∫0tv(τ) dτ. then find the length of the indicated portion of the curve r(t)equals=1010cosine tcost iplus+1010sine tsint jplus+88t k, where 0less than or equals≤tless than or equals≤startfraction pi over 3 endfraction π 3.

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

What is the average diastolic blood pressure for adults