Getting to the Answer: The height h of the tree is the leg opposite θ. The distance b from the base of the tree is the leg adjacent to θ. "Opposite over adjacent" is tangent, but all the answer choices are in terms of the sine. Sine is "opposite over hypotenuse," so you're ...
To determine the height h of a tree, Roger stands b feet from the base of the tree and measures the angle of elevation to be , as shown in the following figure. Which of the following relates h and b? ()A. B. C. D. E. 答案 D 相关推荐 1To determine the height h of a tre...
We found that an actual tree manages to distribute the weight of its trunk and branches along its vertical extent in a manner that adequately secures its critical height. The method and findings of this study are applicable to a wide range of fields, such as the simplification of complicated ...
百度试题 结果1 题目 Use the information in the diagram to determine the height of the tree to the nearest foot. Set up a valid proportion for full credit. 相关知识点: 试题来源: 解析 $80$ m 反馈 收藏
We both looked up todeterminethe source of the water. 我们俩都向上看,以便确定水从何处流下来. 《简明英汉词典》 Shall wedeterminewhat we are going to do next? 我们来确定一下下一步该做什么 吧 ? 《简明英汉词典》 We maydeterminethe height of a mountain by trigonometry. ...
We both looked up todeterminethe source of the water. 我们俩都向上看,以便确定水从何处流下来. 《简明英汉词典》 Shall wedeterminewhat we are going to do next? 我们来确定一下下一步该做什么 吧 ? 《简明英汉词典》 We maydeterminethe height of a mountain by trigonometry. ...
《简明英汉词典》 We may determine the height of a mountain by trigonometry. 我们可用三角原理测定山的高度. 《简明英汉词典》真题例句 Unfortunately, another recent study shows that your mother's personality may also help determine your longevity.出自-2016年6月阅读原文 Their flexibility determines one'...
2. You probably know that we can determine a tree’s age by counting the rings on a cross section of its trunk. (Official33-L2) 你们可能知道我们能够通过树干横截面的年轮来决定一棵树的年龄。 3. Hubbell and Johnson studied several species of stingless bees to determine whether there is a ...
A binary tree– a kind of a tree where every node has zero, one or two children A height of a tree – a maximum distance from a root to a leaf (same as the depth of the deepest leaf) A balanced tree – a kind of a tree wherefor every subtree the maximum distance from the root...
For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two subtrees of every node never diffe class TreeNode { int val; TreeNode left; TreeNode right; TreeNode(int x) { val = x; } } public class Solution { public boolean isBalanced(...