Answer:
Option (2)
Step-by-step explanation:
Step 1.
Step 2.
(cosA - cosB)² + (sinA - sinB)² = [cos(A - B) - 1]² + [sin(A - B) - 0]²
Step 3.
cos²A + cos²B - 2cosAcosB + sin²A + sin²B - 2sinAsinB = cos²(A - B) + 1 - 2cos(A - B) + sin²(A - B)
Step 4.
2 - 2cosAcosB - 2sinAsinB = 1 - 2cos(A - B) + 1
Step 5.
cosAcosB + sinAsinB = cos(A - B)
Therefore, Option (2) will be the answer.
2 and 13 I’m pretty sure but I might be wrong
Area as a function of length can be written as
f(l) = l^2
And volume of cube can be expressed as a function of side s as,
f(s) = s^3
Answer:
C) The total revenue made selling candy bars.
Step-by-step explanation:
A dependent variable is one whose values depends on another variable. In y = 2x, the value of the variable y depends on x; therefore, y is the dependent variable. And since y is the total revenue made selling candy bars, the total revenue made selling candy bars is the dependent variable, which is choice C.
<em>Also, x is an independent variable, because its value does not dependent on anything—we are free to choose whichever value of x we like. </em>
Hypotenuse = √(4^2 + 7^2) = √(16+49) = √(65) = 8.0622.
So the correct answer to the nearest whole number is 8 units.
