4b. The archaeologists plan to build two more straight paths, AD and DC. For the paths to go around the site, angle BAD is to be made equal to 85° and angle BCD is to be made equal to 70° as shown in the following diagram. A485° 170 Find the size of angle BAC. 4c. Find the size of angle CAD. 4d. Find the size of angle ACD. 125 B diagram not to scale +70°C 200

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Question

Help me please

4b.
The archaeologists plan to build two more straight paths, AD and DC. For the paths to go
around the site, angle BAD is to be made equal to 85° and angle BCD is to be made equal to
70° as shown in the following diagram.
diagram not to scale
70
A 85-
200
170
(125
в
Find the size of angle BAC.
4с.
Find the size of angle CAD.
4d.
Find the size of angle ACD.
4е.
Find the area of the region ABCD.
5a.
At Grande Anse Beach the height of the water in metres is modelled by the function h(t) =
pcos(q x t) + r, where t is the number of hours after 21:00 hours on 10 December 2017.
The following diagram shows the graph of h , for 0 <t < 72.
Transcribed Image Text:4b. The archaeologists plan to build two more straight paths, AD and DC. For the paths to go around the site, angle BAD is to be made equal to 85° and angle BCD is to be made equal to 70° as shown in the following diagram. diagram not to scale 70 A 85- 200 170 (125 в Find the size of angle BAC. 4с. Find the size of angle CAD. 4d. Find the size of angle ACD. 4е. Find the area of the region ABCD. 5a. At Grande Anse Beach the height of the water in metres is modelled by the function h(t) = pcos(q x t) + r, where t is the number of hours after 21:00 hours on 10 December 2017. The following diagram shows the graph of h , for 0 <t < 72.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 1 images

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, advanced-math and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,