Triangle def contains right angle e. if angle d measures 40° and its adjacent side measures 7.6 units, what is the measure of side ef? round your answer to the nearest hundredth.
4.89 units
5.34 units
6.38 units
9.06 units

good evening

6.38 units

step-by-step explanation:

since triangle def contains right angle e then if the angle d measures 40°:

tan( measure angle d) = ef/7.6 then

7.6×tan(40)=ef then ef=6.377157196947

now, let’s round 6,377157196947 to the nearest hundredth =6.38 .

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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