步骤1:解方程 **3x = 6x - 15** 移项得到: **3x - 6x = -15** **-3x = -15** 两边除以 **-3**: **x = (-15)/(-3) = 5** 步骤2:计算 **x + 8** 代入**x = 5**: **5 + 8 = 13** 逐项分析选项: - A. **5**(错误,直接取x值,未加8) - B. **...
If非真实条件句作为构式的一种,是"if...,then..."这一形式和虚拟意义的对应体.除了与现在事实不符,与过去事实相反以及与将来事实可能不符这三种最基本的if非真实条件句外,这一构式还有着多种变体,包括倒装式,时态混合式,含蓄式.相应地,这一构式也有着虚拟假设,主观性和主观化,时态后指等多重语义内涵.doi:...
If 7p + 5q = 2 and 8p - 9q = 17, then what is -p + 14q? What is 11^2? What is y if 1/8 + y = 4/5? What is 5% of 400? What is 2+2? What is x and y if y = 3x - 4 and y = 6x - 8? If \int_C \vec F \cdot d \vec s = \int_C(-3x - 3y^2)...
(x 6 (2 x - 1) y 8 5 y) = ((2 x - 3) z 5 1 (w + 1) (4y + 1)) y = u(u - 1), u = x^2 + x. Given y = f(u) and u = g(x), find d y / d x = f'(g(x)) g' (x). If y = {3x^2 - 6} / {x - 1}, find dy/dx at x = 2. Find \df...
判定表:收" q置 <=30t>30国内票客国外素害其他能头等的其也能音通旗爰普通残疾普通免费M2X ("-3Q)3X ( #-30)M4X ( b30)8乂(x/8 X ( w'30)12X (30)/判定树:国内乘客L头等舱其它舱残疾乘客其他乘客 残疾乘客L行李重量W>30r-头等舱其他乘客L残疾乘客行李费算法国外乘客其他乘客 残疾乘客行李...
If the integral is given in the form∫−aaf(x)dx, then: (a)∫−aaf(x)dx=2∫0af(x)dx,if,f(−x)=f(x),even function (b)∫−aaf(x)dx=0,if,f(−x)=−f(x),odd function. Also: sin−θ=−sinθcos−θ=cosθ ...
Camera improvements: iPhone 11 Pro users upgrading to the 15 Pro will gain access to a wide range of camera upgrades added over the years, including a 48-megapixel main lens, an upgraded front camera with autofocus, sensor-shift image stabilization, a 3x optical zoom option, Action mode, Ma...
What is x if 5x - 10 = 60? If 24% is 96, what is 100%? What is 2+2? What is x and y if y = 3x - 4 and y = 6x - 8? What is 4% of 5,000? What is 4(2m - n) - 3(2m - n) when m = -15 and n = -18? 6 is what \% of 20? What is x if 3x = ...
If the angles, in degrees, of a triangle are x, 3x +20 and 6x, the triangle must be View Solution If the three angles of a triangle are:(x+15∘),(6x5+6∘) and (2x3+30∘) then the triangle is: View Solution If the three angles of a triangle are : (x+15∘),(6x...
Let f(x,y)= x^3y^3. Find \frac{\delta f}{\delta x} (2,-1) If A = \begin{bmatrix} 1 & 1 & 1\ 2 & 1 & -1\ 1 & 2 & 3 \end{bmatrix} and \left [c_{ij}\right] = Adj{A}, find c_{12}. Find \frac{...