Quiz
1
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2 3
Have vehicles gotten more fuel-efficient over the years? Between 1960 and 1999 the size and shape of autom
United States has changed almost annually. The amount of fuel consumed by these vehicles has also change
following table describes the average fuel consumption per year per passenger car in gallons of gasoline.
VOAN
Year,
Gallons Consumed Per
Passenger Car
1960
668
1970
1760
1980
576
1990
520
1995
530
1997
538
1998
544
1999
552
Determine the average rate of change, in gallons of gas per year from 1960 to 1990
a
48 - 4.93 gallyear
3.-4.93 gal/year
ja ala
-0.20 gal/year
d
A
-0.20 gal/year
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the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

70.30

step-by-step explanation: