1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DedPeter [7]
3 years ago
7

Please help me. In order to find the height of the tower shown, the surveyors measure the angles of elevation from two points, A

and B.
a) Calculate the distance BC, to a suitable level or accuracy, explain your answer.
b) Use your answer to calculate the height of the tower CD. *
​

Mathematics
1 answer:
Llana [10]3 years ago
7 0
Good luck to you! This problem was a mental workout. XD

You might be interested in
A triangle with a base of 16 cm and a height of 9 cm.
bagirrra123 [75]

Answer: 288

Step-by-step explanation:

(16x9)x2

3 0
2 years ago
An asset is purchased on April 1st and has an annual depreciation amount of $3,600. Using the straight-line method of depreciati
Free_Kalibri [48]
From April to December =9 months

the depreciation expense
3,600×(9÷12)=2,700
5 0
3 years ago
Read 2 more answers
The vertex of this parabola is at (2, -4). When the y-value is -1, the x-value is 3. What is the coefficient of the squared term
rjkz [21]

Answer:

3

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (2, - 4) , thus

y = a(x - 2)² - 4

To find a substitute (3, - 1 ) into the equation

- 1 = a(3 - 2)² - 4 ( add 4 to both sides )

3 = a

Thus

y = 3(x - 2)2 - 4 ← equation in vertex form

   = 3(x² - 4x + 4) + 4

    = 3x² - 12x + 12 + 4

     = 3x² - 12x + 16 ← equation in standard form

with coefficient of x² term = 3

5 0
3 years ago
Find the 91st term of the arithmetic sequence 28, 8, –12, ...<br><br> Anybody know the answer?
tankabanditka [31]

Answer:

-1772

Step-by-step explanation:

The nth term of an arithmetic sequence is expressed as;

Tn = a+(n-1)d

a is the first term

n is the number of terms

d is the common difference

From the sequence

a = 28

d = 8-28 = -12-8 = -20

n =91(since we are looking for the 91st term)

Substrate

T91 = 28+(91-1)(-20)

T91 = 28+90(-20)

T91 = 28-1800

T91 = -1772

Hence the 91st term is -1772

6 0
3 years ago
Evaluate log2/3 (4/9)​
OlgaM077 [116]

Answer:

2

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Hannah's school hosted a book donation. There are 150150150 students at her school, and they donated a total of bbb books! Hanna
    6·2 answers
  • What is 2tens 1one × 10 in a unit form
    6·1 answer
  • How do I simplify the question in the red boy
    8·2 answers
  • Find the product of 3a+5 and 2a^(2)+4a-2
    7·1 answer
  • A bag contains 7 marbles: one each of red, orange, yellow, green, blue, violet, and white. a child randomly pulls 4 marbles from
    13·1 answer
  • A gate is made up of a rectangle and a semicircle as shown.find the area of the gate
    7·1 answer
  • I need help on this one its hard for me :(
    13·2 answers
  • Please help me i need help
    6·1 answer
  • an apartment company has 2 buildings. each building has 3 floors. each floor has 16 windows how many windows are there in total
    8·1 answer
  • The linear regression equation is y = 61. 93x - 1. 79. According to the model, the slope can be interpreted as:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!