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...
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...
If the three angles of a triangle are : (x + 15^(@)), ((6x)/5 + 6^(@)) and ((2x)/3 + 30^(@)), then the triangle is :
limx⟶x0+f(x)limx⟶x0−f(x).If we approach the point, either from the left or the right and the function f (x) tends to a certain value L, then the limit exists and has a value L. Answer and Explanati...
If \int_{1}^{5} f(x)dx = 8 and \int_{3}^{5} f(x)dx = 3.2, find \int_{1}^{3} f(x)dx. If {f}''(x)=3x^{2}-5\sin x+2e^{x}, {f}'(0)=10 and f(0)=0, then what is f(x) Given \displaystyle 2-xy^3-3x^...
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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...