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
vaieri [72.5K]
3 years ago
15

Tanya wants to find the height of the tree. She walks away from the base of the tree so the tip of her shadow coincides with the

tip of the tree's shadow at point C. BE is two and a half times EC. Tanya is 5 feet, 3 inches tall. How tall is the tree in feet?
Mathematics
1 answer:
Vikki [24]3 years ago
3 0
<span><u>Answer </u>
18 feet and 4.5 inches

<u>Explanation </u>
You are going to use the concept of similar triangle.
∆CED≡∆CBA
This is because they share the angle at C and also they both have an angle of 90o.
Let EC = X, then BE = 2.5X. So, BE = (X + 2.5X) = 3.5X
The scale factor EC/BC=x/3.5x=2/7
EC/BC=ED/BA=2/7
BA=7/2×63 in
The height of the tree = 220.5 inches. This is equal 18 feet and 4.5 inches.  
</span>
You might be interested in
Plz help ASAP plz!!!
zysi [14]

Answer:

tan38 = 0.31

cos47 = -0.99

sin77 = 0.99

Step-by-step explanation:

There are several free online calculators that can help you do this! I recommend Desmos!

7 0
3 years ago
Plz help me I've been dealing with this for 4 days. ​
Sloan [31]

Step-by-step explanation:

(qvp)5=4-5=54643434346

3 0
3 years ago
How many times does 6 go into 516
8090 [49]
6 goes into 516 86times.You only divide 516/6

4 0
3 years ago
Graph f(x) =-2x^+16x-30 by factoring to find the solutions, then find the coordinates of the vertex, and the axis of symmetry. I
inn [45]

Answer:

See explanation

Step-by-step explanation:

1. Factor the function f(x)=-2x^2+16x-30:

f(x)=-2x^2+16x-30=-2x^2+6x+10x-30=-2x(x-3)+10(x-3)=-2(x-3)(x-5).

2. The zeros (or the solutions of the equation f(x)=0) are x=3 and x=5. So? points (3,0) and (5,0) are the points on the graph that are the solutions of the equation.

3. Find the vertex:

x_v=-\dfrac{b}{2a}=-\dfrac{16}{2\cdot (-2)}=4,\\ \\y_v=-2\cdot 4^2+16\cdot 4-30=-32+64-30=2.

Thus, the coordinates of the vertex are (4,2) and the axis of symmetry is the vertical line that passes trough the vertex: x=4.

3 0
2 years ago
Given the formula, E = mgh + 1/2mv<img src="https://tex.z-dn.net/?f=%5E%7B2%7D" id="TexFormula1" title="^{2}" alt="^{2}" align="
vlabodo [156]
Answer:
4.5
Explanation:
I’ve attached my work below
Hope it helps, Let me know if you have any questions !

7 0
1 year ago
Other questions:
  • Equivalent fractions of 2 6th
    6·2 answers
  • Clabber company has bonds outstanding with a par value of $100,000 and a carrying value of $97,300. if the company calls these b
    7·1 answer
  • One number is 2 more than 3 times another. their sum is 22. find the numbers.
    13·2 answers
  • -5, 1, 7, 13, .. What is f(1)?​
    15·1 answer
  • Please help I will do brainliest!!!! Pleaseeeeee.
    10·1 answer
  • Pls help with #8 thx!
    13·1 answer
  • Please help me if you can
    14·2 answers
  • Please help me on this
    10·1 answer
  • What is nbr2 at the end of the program segment execution? nbr2 = 0 calc = 1 x = 7 while x &gt;=3 calc = calc * x x = x - 2
    7·1 answer
  • A statue of zeus in greece is made of gold and ivory. the ivory was found to have lost 25% of its carbon-14. using the formula f
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!