Not sure how to complete this question; any help is appreciated. "Let u = x^2 + 3. What equation is equivalent to (x^2 + 3)^2 = 10x^2 + 30 in terms of u?"

Use the distance formula to determine the distance that point q is from r on the hypotenusebased on a 2-3 ratio.i need asap !

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.

Simplify 24÷(-2)(3)+7 a. -29 b. 3 c. 11