百度试题 结果1 题目 Ify varies inversely asx, andx=70 wheny=3.6, what is the value ofy (to the nearest tenth) whenx = 90?A:3.6B:4.6C:2.8D:3.2 相关知识点: 试题来源: 解析 C None 反馈 收藏
It is given that y partly varies directly as x2 and partly varies inversely as x. When x=1, y=−4 and when x=2, y=5. When x=−2, y=( ). 巳知y的一部分随x2正变,而另一部分随x反变. 当x=1时,y=−4;又当x=2时,y=5.当x=−2时,y=( ). A.−11. B.−5. ...
1It is given that y partly varies directly as x2 and partly varies inversely as x. When x=1, y=−4 and when x=2, y=5. When x=−2, y=( ).巳知y的一部分随x2正变,而另一部分随x反变. 当x=1时,y=−4;又当x=2时,y=5.当x=−2时,y=( ).A.−11.B.−5.C.5...
【题目】It is given that y partly varies directly as x2 and partly varies inversely as r. When x=1, y=-4 and when x=2, y=5. When x=-2,y=().已知y的一部分随 x^2 正变,而另一部分随反变当x=1时,y=-4;又当x=2时,y=5.当x=-2时,y=().A.-11.B.-5.C.5.D.11. ...
【题目】It is given that y varies inversely as vx Whenx=144.,y=81.已知y随√x反变.当x=144时,y=81.(1)Express y in terms of x.以x表y.(2)If the valueof x is increased from 144 to 324,find the change in the value of y.若x的值由144增加至324,求y的值的改变. ...
y varies inversely as the square of x and directly as the cube z and the variables are connect by the equation y=kz³/x.Where k is constant.Given thatx 1 2 by 10 20 40z a 8 32(a)Find the value of k(b)Hence find the values of a(c)Hence find the values of b先翻译后给...
如果y 作为x平方的反比变化，那么当x是y的两倍时 a 乘以 b 除以 c 增加了 d 减少了 e 没有改变 不是学数学的，只是按照问题翻译，不知道答案 我是老师，有问题可以交流~
y varies inversely as the square of x y=1.5 when x=8 find y when x=5 Answer y=?有答案就最好了. 答案 Ÿ为XY= 1.5的平方成反比变化,当x =8找到Ÿ当x=5答:Y 相关推荐 1y varies inversely as the square of x y=1.5 when x=8 find y when x=5 Answer y=?有答案就最好了.反馈...
If y varies inversely as the square of x, and y = 4 when x = 2, then what is the value of y when x= 3? ( ) A. (16)9 B. 83 C. 3 D. 9 相关知识点: 试题来源: 解析 A y and x^2 must have a constant product of 4* 2^2= 16. Therefore, y= (16)9....
It is given that y varies inversely as √x When x=144.,y=81.已知y随√x反变.当x=144时,y=81.