Can you type what it says I can't see it that well.
The correct answer would be 128.
Answer:
see explanation
Step-by-step explanation:
Using the Addition/ Subtraction formulae for cosine
Consider the left side
cos(x - y) - cos(x + y)
= cosxcosy + sinxsiny - (cosxcosy - sinxsiny) ← distribute
= cosxcosy + sinxsiny - cosxcosy + sinxsiny ← collect like terms
= 2sinxsiny = right side ⇒ proven
Answer: Score is 629
Step-by-step explanation: z value for P(x > 0,90) is 1,29
Average x is 500 and deviation is 100. Value of score p is solved from
z = (p - x) / s p = s·z· + x = 129 + 500 = 629
The surface area for a cube is just the sum of the areas of all six sides which is:
A=6s^2, since s=8mm
A=6*64=384 mm^2
