13
Answer: 175.8 cm^2
Explanation:
The formula for calculating the area of a sector is expressed as
Area = θ/360 x πr^2
where
r is the radius of the circle
θ is the angle subtended at the center
From the information given,
θ = 315
r = 8
π = 3.14
By substituting these values into the formula,
Area of sector = 315/360 x 3.14 x 8^2
Area of sector = 175.8 cm^2
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Step-by-step explanation:
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Answer:
exact form os -25/36
Step-by-step explanation:
Answer:
Step-by-step explanation:
To write the equation of the line in slope-intercept form, use the slope-intercept formula, 
. Find real values for the 
and 
and substitute them into the formula.
1) We know that represents the slope, so substitute 1 in its place. However, we still need to find , or the y-intercept. So, along with substituting that 1 in for , substitute the x and y values for (7,0) for the x and y in the formula as well. Then, isolate to find its value:
So, = -7.
2) Now, just substitute the found values for and into the slope-intercept formula. Remember that the slope is , so substitute 1 in, and is -7, so substitute -7 in its place as well. This gives the following equation in slope-intercept form:
or
