Find cos(2theta) if cos(theta)= 3/4
1 answer:
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Answer:
Step-by-step explanation:
we have
This is the equation of a line in slope intercept form
where
---> the slope
----> the y-intercept
we know that
If the given line was shifted down 7 units, then the new y-intercept is equal to
The slope of the new line will be the same that the original line, because are parallel lines
so
The new equation is
Given:
Seven equal-sized square photos arranged in a row to form a rectangle.
Total area of the collage is 567 square inches.
To find:
The length of the collage.
Solution:
Let the side of each square be x inches.
Seven equal-sized square photos arranged in a row to form a rectangle.
So, length of rectangle is 7x and width is x.
Area of rectangle is
Taking square root on both sides, we get
Side cannot be negative. So, x=9 inches.
Now,
Width = 9 inches
Length = 7(9) = 63 inches
Therefore, the length of the rectangle is 63 inches.