Write using exponential notation.8 × 8 × 8 × 8

A. 32
B. 84
C. 82
D. 48


Answer: B

Mathematics

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Find the sum of the geometric series for those x for which the series converges.

A.
B. - 
C.
D.

Mathematics

Solve the problem.A voltage source of 12 volts can supply a voltage V (in volts) through a 72-ohm line to a variable resistance R (in ohms) given by the following equation. V = . How fast does V change with respect to R when R is 67 ohms?

A. 0.167 V/? B. 0.045 V/? C. 0.192 V/? D. 6.216 V/?

Mathematics

Use the table of values of f to estimate the limit.Let f(x) = x2 + 8x - 2, find f(x).

A.
 ; limit = ?
B.
 ; limit = 5.40
C.
 ; limit = 17.70
D.
 ; limit = 18.0

Mathematics

Solve the problem.A pipe is cut into two pieces, with one piece 22 feet longer than the other. The pipe was 72 feet long before it was cut. How long is each piece?

A. 72 feet, 50 feet B. 47 feet, 50 feet C. 94 feet, 50 feet D. 47 feet, 25 feet

Mathematics