Question: 20. If from the angle of elevation from the ground to the top of a cliff is 45 from 100 feet away, how tall

20. If from the angle of elevation from the ground to the

20. If from the angle of elevation from the ground to the top of a cliff is 45 from 100 feet away, how tall is the cliff? 21. An observer in an air traffic control tower sees a plane taxiing between runways. If the tower is 390 feet tall, and the angle of depression from the observer to the plane is 15, how far away is the plane from the observation deck? from the base of the tower?

Step by Step Solution

★★★★★

3.53 Rating (153 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...

The Freedom Tower is to be the centerpiece of the rebuilding of the World Trade Center in New York City. The tower will be 1776 feet tall (not including a broadcast antenna). The angle of elevation...

An engineer designs a 75-foot cellular telephone tower. Find the angle of elevation to the top of the tower at a point on level ground 50 feet from its base.

Fortes Inc. has provided the following data concerning one of the products in its standard cost system. Materials price variances is calculated on material purchased and materials quantity is based...

1 Question 2 Question 3 Question 4 Question 5 Question 6 Suppose you wish place artificial turf on the floor of an indoor exercise facility that is in the shape of a trapezoid with bases measuring 27...

48) Solve for the missing angles and sides using a calculator. The diagram below is not drawn to scale. a b AB C a. B = 4 , A = 25, c = 5 c. C = 42 , a = 21, c = 15 b. A = 13 , a = 21, b = 13 d. a =...

Pls finish all questions and make sure it's correct and nice handwriting Thx Short Answer Problem 1. A triangular plot of land is enclosed by a fence. One side of the fence is 8.l m long with an...

Practice/Homework: 1. A 20-foot ladder is leaning against a wall. The base of the ladder is 3 feet from the wall. What angles does the ladder make with the ground? 2. How tall is a bridge if a 6 foot...

Exercise Set 7.1: Solving Right Triangles For each of the following examples, (a) Write a trigonometric equation that can be used to find x, and write a trigonometric equation that can be used to...

Math subject Please help me with this 1. In any right triangle, what is the longest side? 11. In right triangle DEF, what is the measure of DF if DE = 6 cm and EF, = 8 cm? A. 10 cm B. 9 cm C. 8 cm D....

Stork Corporation (E & P of $850,000) has 1,000 shares of common stock outstanding. The shares are owned by the following individuals: Lana Johnson, 400 shares; Lori Jones (Lana's mother), 200...

Assume that the economy has an 29% chance of booming, a 34% chance of being normal, and being recessionary the remainder of the time. A stock is expected to return 25.92% in a boom economy, 18.24% in...

12 The first term of a sequence is 6. The term-to-term rule is divide by 2 then add 1. Work out the first ten terms of the sequence. You can use a a calculator to help you. b What do you notice about...

PIN (Personal Identification Number) is necessary in order to use an ATM. (a) How many different 4-digit PIN codes are possible using the digits 0,1,2,.,9? (b) How many different 4-digit PIN codes...

Prove that C) =(") -k.

4. Given a signal as follows, compute the fundamental frequency, spectrum and bandwidth. Also calculate the channel capacity using Shanon criteria when SNR(db) = 250dB. s(t) = 5 sin(100nt) +...

what standard of care is required for car driver?

What issues from oil rents relate to unecual distribution of human capital income in Angola and Nigeria?

Find the surface area of a cylinder with a base diameter of 4 in and a height of 8 in.

9% compounded quarterly or 9%compounded annually In problem, determine the rate that represents the better deal.

Two fair dice are rolled. Determine the probability that the sum of the two dice is 3.

In problem, solve the inequality by using the graph of the function. Solve f(x) > 0, where f(x) = (x - 1)(x + 3) 2 .

What amount after being increased by 210% equals $465?

$750 is what percent more than $250?

How much is $10,000 after an increase of _3%? 4