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
Simora [160]
3 years ago
10

How to calulate how high a tree that is 5m high and shadow is 4m?

Mathematics
1 answer:
Deffense [45]3 years ago
3 0
If you are trying to figure out the distance between the top of the tree and the end of the shadow, use a^2 + b^2 = c^2 where c is the hypotenuse and a and b are the legs of the right triangle.
5^2 + 4^2 = c^2
25 + 16 = c^2
41 = c^2
c = √41 = 6.4 meters
You might be interested in
Bacteria can multiply at an alarming rate when each bacteria splits into two new cells, thus doubling. If we start with only one
Svet_ta [14]
The answer is 16,384 bacteria is 15 hours 
5 0
3 years ago
Which is a possible leading term for the graph shown? 2x3 –2x3 2x4 –2x4
Y_Kistochka [10]

Answer:

2x^4

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Please help! Thanks! Show work!
geniusboy [140]
Answer: The toy should be 2.4 inches tall

------------------------------------
------------------------------------

Explanation:

First convert 6 ft to inches
6 ft = (6 ft)*(12 in/1 ft) = (6*12) inches = 72 inches

So, 6 ft = 72 inches

The toy is manufactured with a scale of 1:30 meaning that the toy is 1 unit tall compared to the soldier which is 30 units tall. The soldier is 30 times taller than the toy. We can therefore form the ratio

1/30 = x/72

where x is the height of the toy soldier in inches

Cross multiply and solve for x

1/30 = x/72
1*72 = 30*x
72 = 30*x
72/30 = 30*x/30
72/30 = x
x = 72/30
x = 12/5
x = 2.4

So the toy should be 2.4 inches tall.

Note how 30 times 2.4 gives us
30*2.4 = 72
which fits with the theme that the real soldier is 30 times taller than the toy counter part.


3 0
3 years ago
Bbbbbbbbbbbbbbbbbbbbb
Troyanec [42]
The graph has a y-intercept of 2 and is shifted to the right 6 from the parent function.

The parent function, y=√x, looks like a parabola laid on its side.  We generally only consider the positive square root unless told otherwise.  Since we have √(x-6) instead of just √x, the graph is shifted to the right 6 units.  The +2 at the end of the equation shifts the graph up 2.
3 0
3 years ago
4.
zubka84 [21]

Answer:

See Explanation Below

Step-by-step explanation:

Given

(sin x - cos x)^2 = sec^2x - tan^2x - 2sinx.cos x.

Required

Prove

To start with; we open the bracket on the left hand side

(sin x - cos x)^2 = (sin x - cos x)(sin x - cos x)

(sin x - cos x)^2 = (sin x )(sin x - cos x)- (cos x)(sin x - cos x)

(sin x - cos x)^2 = sin^2 x -sinx cos x - sin xcos x + cos^2 x

(sin x - cos x)^2 = sin^2 x -2sinx cos x + cos^2 x

Reorder

(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x

From trigonometry;

sin^2x + cos^2x = 1

So;

(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x

becomes

(sin x - cos x)^2 = 1 - 2sinx cos x

Also from trigonometry;

sec^2x - tan^2x = 1

So,  

(sin x - cos x)^2 = 1 - 2sinx cos x

becomes

(sin x - cos x)^2 = sec^2x - tan^2x  - 2sinx cos x

Proved

3 0
3 years ago
Other questions:
  • Nits.<br> What is the length of segment TV?<br> 14 units<br> 19 units<br> 38 units<br> 50 units
    6·1 answer
  • Half a number x minus 5 is 11
    15·1 answer
  • What is the best approximation for the area of a circle with a diameter of 19 meters?
    9·1 answer
  • It takes a graphic designer 1.5h to make one page of a website. Using a new software, the designer could complete each page in 1
    6·2 answers
  • A family wants to purchase a house that costs ​$ 165 comma 000 165,000. They plan to take out a ​$ 125 comma 000 125,000 mortgag
    5·1 answer
  • I'LL GIVE BRAINLIEST !!! FASTER<br><br>please explain how do you get the answer​
    6·2 answers
  • Plsss help asap plsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
    14·1 answer
  • PLS HELP!!!!! ITS ALGEBRA 1!
    13·1 answer
  • Andre wrote the expression -2 + 4x = 3 to represent the relationship shown in the table. Write two other expressions that also r
    6·1 answer
  • In the past year, Deandre watched 21 movies that he thought were very good. He watched 70 movies over the whole year. Of the mov
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!