Acircular piece of metal has a radius of 3.5 meters.
the metal sells for $3.25 per square meter.

what is the total cost of the circular piece of metal?

a.
$11.38

b.
$38.47

c.
$71.44

d.
$125.01

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

If f(x) = 4 - x2 and g(x) = 6x, which expression is equivalent to (g-f)(3)? 06-3-(4 + 3)2 06-3-(4-33 6(3) - 4 +32 6(3) -4 -32

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)