2014年8月15日 · 72 = 2*2*2*3*3*1 So now we can choose different pairs based on the factors we have. for example 4 and 18 or 2 and 36. all of these combinations would give us a product of 72, but when we add them up we should get negative one.

2018年3月18日 · if x^2-y^2=72 and y-x=6, then x+y= Log in Sign up. Find A Tutor . Search For Tutors. Request A Tutor ...

2017年9月22日 · x - 72 = -x 2. add x 2 to both sides. x 2 + x - 72 = 0. This can be factored (x+9)(x-8) = 0. x = -9 or x ...

2020年9月13日 · To get domain of composite function we have to solve inequality: 72 - x 2 + x ≥ 0, x 2 - x - 72 ≤ 0 (x - 9)(x + 8) ≤ 0, so interval - 8 ≤ x ≤ 9 is domain of this composition. Upvote • 0 Downvote

2024年6月24日 · Method #1: 72% as a decimal is 0.72 and the word of means to multiply so we can write this as 0.72 x 90. The product of 0.72 and 90 is 64.8 so 72% of 90 is 64.8. Method #2: You can set up a proportion Part/Whole = %/100. The 72% is the percent and 90 is the whole the because it comes after the word of. We are trying to find the part. x/90 = 72/ ...

2013年9月8日 · x 1 and x 2 are roots of quadratic equation ax 2 + bx + c = 0 x 12 = [- b ± √(b 2 - 4ac)] / 2a D = b 2 - 4ac If D > 0 , there are two real roots. If D = 0 , there is only one real root. if D < 0 , the quadratic equation does not have real roots and cannot be factorized in the set of real numbers. x 2 + 17x + 72 = a = 1 b = 17 c = 72 D = 17 2 ...

Adilene E. asked • 02/20/19 the rectangle below has an area of x^2 -x-72 square meters and a length of x + 8 meters.

2014年4月7日 · The product of the two is 72, so: x(x-6)=72. 4. X^2-6x=72. x^2-6x-72=0 (subtract 72 from each side);

2021年5月24日 · the only geometry concept is pythagorean theorem used three time. Label PR as z. 3 2 +y 2 =x 2. 24 2 +y 2 =z 2. adding 2y 2 =x 2 +z 2-24 2-3 2

2016年6月22日 · In 2011, t=1, so the sales are (f(1)=.72(1) + 2) million = 2.72 million. This function says that with each passing year, the sales increase by .72 million. The question is asking when (at what time t) sales will reach 10 million.