The power
lost when an electric current
passes through a resistance
is given by the formula
. Solve for
.If
src="https://sciemce.com/media/3/ppg__cognero__Section_2.4_Formulas__media__81f755e1-95ee-4554-b2ad-e403fcea6b1d.PNG" /> is 2,000 watts and is 13 amperes, calculate
to the nearest hundredth of an ohm.
A.
B.
C.
D.
E.
Answer: A
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Find the first term and the common ratio for the geometric sequence. Round approximations to the nearest hundredth.a2 = -24, a5 = 648
A. a1 = 24, r = 3 B. a1 = 648, r = -0.33 C. a1 = 8, r = -3 D. a1 = 8, r = -0.33
Simplify. Combine like terms if possible.-4x - 5y
A. -9(x + y) B. -4x - 5y C. -9xy D. -2xy
Determine the place value of the digit 3 in the whole number.25,304,168
A. thousands B. hundreds C. hundred-thousands D. ten-thousands
Attending concerts is a favorite form of entertainment for many people. The graph shows concert attendance gradually increased from 1994 to 2004 for concerts at a small town's outdoor concert venue. In 1994, the average attendance was 935, as represented by the point In 2004, the average attendance was 2350, as represented by the point
We can find an equation of the line segment PQ using a system of equations, and then we can use the equation to approximate the attendance in any of the years between 1994 and 2004.
src="https://sciemce.com/media/4/ppg__tttt0623191144__f1q88g3.jpg" alt="" style="vertical-align: 0.0px;" height="213" width="361" />The line segment has an equation that can be written in the form y = ax + b. Use the coordinates of point P with and
, write an equation in the variables a and b.
A. y = 2004a + b
B. 2350 = 2004a + b
C. 2004 = 2350a + b
D. y = 2350a + b