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 |
| Display |
1 [+] 0.06 [=] [xy] 7[=] | 1.503630259 |
[×] 1000 [=] | 1503.630259 |
PHYSICS
If a ball is thrown upward with a velocity of 75 feet per second, what is its velocity at the end of 1.6 sec-
onds (g=32.2 ft/sec2)?
Velocity: | V = Vo – gt |
| = 75 – (32.2 × 1.6) |
| = 23.48 ft/sec. |
Height: | S = Vot – 1/2 gt2 |
| = (75 × 1.6) – (1/2 x 32.2 × (1.6)2) |
| = 78.784 ft. |
Press | Display |
75 | 23.48 |
75 [×] 1.6 | 0.5 |
32.2 [×] 1.6 [x2] [=] | 78.784 |
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CIVIL ENGINEERING
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
Mode | Press | Display |
DEG | 5.7 [÷] | 5.7 |
| 30 [sin] | .5 |
| [=] | 11.4 |
In this right triangle,
A = 6 feet and C = 15 feet.
Determine the values of a, b and B.
sin a = A / C
sin a = 6 / 15 = 0.4
a = 23.58 degrees
b = 90 – 23.58 = 66.42 degrees cos a = B / C
cos 23.58 = B / 15 B = cos 23.58 × 15
B = .9165 × 15 = 13.7475 feet
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