My triangle solver says EF ≈ 7.5 ft.
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The law of cosines is usually used for this.
EF^2 = DE^2 +DF^2 -2*DE*DF*cos(D)
.. = 6^2 +11^2 -2*6*11*cos(40°)
.. ≈ 55.88
EF ≈ √55.88 ≈ 7.5 . . . ft
Right change flip it's simple
Answer:
Converting a fraction to a decimal is just a division operation. So the fraction 1/2 means 1÷2. ... we find 1÷2=0·5. This fraction was easy - just one digit and we are done.
Step-by-step explanation:
hope yall' understood
Answer:
Step-by-step explanation:
Let's break it down:
In the sinusoidal function 
:
represents Amplitude 
represents a constant related to the Period
represents Phase Shift 
represents Vertical Shift
To find Amplitude, divide the entire height of the function (from top to bottom) by two, or find the vertical distance between the horizontal line of symmetry and the highest/lowest point of the wave. In this case, Amplitude is 2.
To find , use 
, where 
is the period of the function. To find the period, count the horizontal distance of the length of one complete cycle. In this case, period is 
and therefore
.
To find Phase Shift, find the horizontal shift from the parent function 
. In this case, there is no phase shift.
To find Vertical Shift, find the vertical shift from the parent function . In this case, vertical shift is -1.
Thus, we've found:
Substituting these values into , we get:
D = rt
Distance will equal 30, the constant would be 30 and the time would be 1 hour
30= 30 1
