题目内容

A business currently sells 10,000 units of its product each month at a price of $10 per unit. The product's price elasticity of demand is –0.4. Calculate the impact on the firm's total revenue per month if the price of the product is increased to $11 per unit. (Use the simple point method for calculating price elasticity of demand. Give your answer to the nearest whole number.) ____(Increase/Decrease) of $ ____.

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A firm currently sells its product at a price of $8 per unit, and generates sales revenue of $7,200 per day. The firm's management team decided to increase the price of the product to $8.40 but following this increase sales revenues fell to $7,106.40 per day. What is the price elasticity of demand of the product? (Use the simple point method for calculating price elasticity of demand. Give your answer to 1 decimal place. Ignore a minus sign.) ____.

在选用了刀具半径补偿的条件下,进行整圆切削应釆取()。

A. 法向切入法
B. 圆弧切入法
C. A、B都可以
D. 无正确答案

下列( )会产生过切削现象。

A. 加工半径小于刀具半径的内圆弧
B. 被铣削槽底宽小于刀具直径
C. 加工比刀具半径小的台阶
D. 以上均正确

通常用球刀加工比较平缓的曲面时,表面粗糙度的质量不会很高。这是因为()而造成的。

A. 行距不够密
B. 步距太小
C. 球刀切削刃不太锋利
D. 球刀尖部的切削速度几乎为零

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