Applications and Examples. Datexx DS-700

APPLICATIONS AND EXAMPLES

BUSINESS

Calculate the future value of a $1000 investment compounded annually at a rate of 6% for

7 years.

FV =

=

= p (1+i )n

1000 (1+0.06) 7

1503.63

Press

[=]

[X] 1000 [=]

Display

1.503630259

1503.630259

PHYSICS

If a ball is thrown upwars with a velocity of 75 feet per second, what is its velocity at the end of 1.6 seconds

( g = 32.2 ft/sec2) ?

Velocity: V = Vo - gl

= 75 - ( 32.2 x 16)

= 23.48 ft/sec.

Height: S = Vol - 1/2 gl2

= (75 x1.6)– (1/2 x 32.2 x (1.6 ) 2 )

= 78.784 ft.

Press

75 [–] 32.2 [X] 1.6 [=]

75 [X] 1.6 [–] 2 [2ndF][1/x][X]

32.2 [X] 1.6 [X ] [=]

Display

23.48

0.5

78.784

28

CIVIL ENGINEERING

Trigonometric Functions

In this right triangle,

A = 5.7 feet and a = 30 degrees.

Determine the value of C.

sin a = A/C sin 30 degrees = 5.7/C

C = 5.7 / sin 30 degrees

C = 5.7 / 5

C = 11.4

Angular

Mode

DEG

Press

5.7 [

÷

]

30 [sin]

[=]

Display

5.7

0.5

11.4

29