Work out the size of angle DEF, giving a reason for your answer.F150°OEF
1 answer:
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The value for y is 17.5°
The equation is
Sin (3y - 30°) = Cos (7y +50°)
<h3>What is Trigonometry ?</h3>Trigonometry is the branch oh Mathematics which involve the study of right angles , its sides and trigonometric ratios.
the equation given in the question is
Sin (3y - 30°) = Cos (7y +50°)
cos(90 - ) = sin
Therefore
sin(3y-30°) = sin( 90-(7y+50°)
Equating the terms
3y - 30 = 90-7y -50
4y = 90-50+30
4y = 120-50
4y = 70
y = 17.5
The value for y is 17.5°
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Answer:
The linear equation and Erin can pick
apples per hour if she maintains a constant rate.
Step-by-step explanation:
To find the linear equation of the relationship from the graph.
We have to find the coordinates .
Let say and
Here variable is the time in hour and
variable is the number of apples.
To find linear equation we have to find the slope (m) of the line by using point-slope form.
So,
The the linear equation will be.
Number of apples Eric pick in an hour is .
By plugging the value of in the equation we can find the number of apples picked by Erin per hours subsequently
for second hour.
In each hour she picks apples.
Linear equation is and number of apples picked by Eric in an hour is
.