The cosine of an angle is defined as the sine of the complementary angle. The complementary angle equals the given angle subtracted from a right angle, 90°. For instance, if the angle is 30°, then its complement is 60°. Generally, for any angle θ, cos θ = sin (90° – θ).
Answer:
Find the attached
Step-by-step explanation:
We are given the following linear equation;
-3y = 2x - 7
In order to graph it, we need to determine at least 3 pairs of points that lie on the line;
we first solve for y by dividing both sides of the equation by -3;
y = (-2/3)x + 7/3
let x be 3;
y = (-2/3)*3 + 7/3
y = 1/3
(3, 1/3)
let x be 6;
y = (-2/3)*6 + 7/3
y = -5/3
(6, -5/3)
let x be 9;
y = (-2/3)*9 + 7/3
y = -11/3
(9, -11/3)
Using the three set of points we graph our linear function. Find the attached;
So.. if hmm check the picture below, the radius is half that diameter
thus

simplify that away
now.. that's how much is in the cooler in cubic feet though, not in gallons
notice, our units were in feet, thus our volume is also in feet, just cubics
so. to know how many gallons, simply divide that by 231
Answer:
here is the answer in photo form