Answer:
C. 15.9 m
Step-by-step explanation:
Let x be the height of the telephone pole,
Since, the length of the shadow of pole is 34 m,
So, the ratio of the height of the pole and its shadow =
,
Also, the statue is of 36 cm tall casts a shadow 77 cm long,
Thus, the ratio of the height of pole = ![\frac{36}{77}](https://tex.z-dn.net/?f=%5Cfrac%7B36%7D%7B77%7D)
At the same time,
The ratio of height with shadow is same for all objects.
![\frac{x}{34}=\frac{36}{77}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B34%7D%3D%5Cfrac%7B36%7D%7B77%7D)
![x=\frac{34\times 36}{77}=\frac{1224}{77}=15.8961038961\approx 15.9](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B34%5Ctimes%2036%7D%7B77%7D%3D%5Cfrac%7B1224%7D%7B77%7D%3D15.8961038961%5Capprox%2015.9)
Hence, the height of the telephone pole is 15.9 m.
Option 'C' is correct.
I hope this helps you
23×13=299
You must first attach the problems with your question.
To solve this you need to know Pythagorean theorem.
First, EG is 24, so the halfway points are 12. Knowing Pythagorean triples, you can use 5,12,13 and 12,16,20.
DF = 5+16
DF = 21
If you don't know Pythagorean triples, I have worked it out on the image attached.
Answer:
option (a) f(x)= 1/x+2
Step-by-step explanation:
(a) f(x) = 1/ x+2
To find the restriction for domain , we set the denominator =0 and solve for x
x+2 =0, so x=-2
When x=-2 then denominator becomes 0 that is undefined.
So, domain is all real numbers except -2
(b) f(x)= 2x
In this function, there is no denominator or square root or log function
so there is no restriction for x, hence domain is all real numbers
(c) f(x) = 2x-2
In this function, there is no denominator or square root or log function
so there is no restriction for x, hence domain is all real numbers
f(x) = 1/ sqrt(x+2)
if we have square root in the denominator then we set the denominator >0 and solve for x. because square root of negative values are undefined
x+2>0, x>-2
Hence domain is all real numbers that are greater than -2