Amanufacturer of rechargeable laptop batteries markets its batteries as having, on average, 500 charges. a consumer group decides to test this claim by assessing the number of times 30 of their laptop batteries can be recharged and finds the average is 497, with a standard deviation of 10.
the resulting p-value is .; thus, the null hypothesis is not rejected. the consumer group concludes that the manufacturer's claim that its laptop batteries can be recharged, on average, 500 times is accurate.
what type of error is possible in this situation?
x=3 represents the amount of fabric required to make the shorts, since it says the company uses 82.5 yards of fabric to make shirts and shorts, so you have to add the amount of fabric each pair of shorts takes to create. hope this !
divide the top and bottom by 3
99/3 = 33
15/3 = 5
-99/15 = -33/5
h(t) = -16t2 + 704t
the maximum will occur at the axis of symmetry.
we can find the axis of symmetry at
h = -b/2a
where at^2 +bt+c
so a = -16 and b = 704
h = -704/(2*-16)
from the fundamental law of trigonometric, we have
since , the cosine must be positive, so we choose the positive solution:
now, the rule for the double angle of the tangent states that