Answer:
The answer to your question is B = 67.9 ft
Step-by-step explanation:
Data
Johnny's eyes height = J = 6 ft
distance from Johnny's to the mirror = dJ = 4 ft
distance from the mirror to the building = dB = 45 ft 3 in
building's height = B = ?
To solve this problem use the Thales' theorem. We can use this theorem because the triangles formed are similar.
B/ dB = 6/4
-Convert 3 in to ft
1 ft ------------------- 12 in
x ------------------- 3 in
x = (3 x 1)/12
x = 0.25 ft
dB = 45 + 0.25
= 45.25 ft
-Substitution
B / 45.25 = 6/4
-Solve for B
B = 6(45.25) / 4
-Simplification
B = 271.5/4
-Result
B = 67.9 ft
F(6) means that for every value of x in the function, you plug in a 6. So,
f(6) = 2(6)^2 + 5*sqrt((6) - 2)
This equals 82.
A.
Since all of the calculations are correct, there is no other choice other than A.
Answer:
62.8 in
Step-by-step explanation:
You have correctly filled appropriate values into the formula. However, your math failed to include the factor of 2.
C = 2πr = 2(3.14)(10 in) = 62.8 in
Answer:
I have the same doubt so pls answer
Step-by-step explanation:
