1. Check the sketch of the problem.

2. In right triangle DCE,

$tan50= \frac{EC}{DC}= \frac{x}{50}$

tan 50 can be found to be 1.19 using a scientific calculator or other software.

$1.19=\frac{x}{50}$

x=1.19*50=59.5 (feet)

3. The height of the building is 59.5+5=64.5 (feet)

Answer: 64.5 (feet)

5 0

2 years ago

Terrence says pi is a rational number since it is the ratio of a circle's circumference to its diameter. Why is

kari74 [83]

Answer:

(A) Pi cannot be written as a ratio of integers even if it represents a different ratio.

Step-by-step explanation:

A rational number is can be expressed as the quotient of two integers. It can either be a number with or without a decimal part when converted to decimals.

C = 2 $\pi$ r and D = 2r

C = $\pi$ D

Thus, $\pi$ = $\frac{C}{D}$

= $\frac{22}{7}$ = 3.142857143...

Terrence was incorrect because Pi is an irrational number which cannot be represented by a simple fraction without approximation.

7 0

2 years ago