Answer:
Step-by-step explanation:
<u><em>The correct question is</em></u>
Find the cosine of ∠A
The picture in the attached figure
we know that
In the right triangle ABC
The cosine of angle A is equal to divide the adjacent side to angle A by the hypotenuse of the right triangle
so
----> by CAH
substitute the given values
2+2=4
You start with 2 and add an additional 2 to that. You now have 4.
I hope that helps!!!!!!
: )
Answer:
$551
Step-by-step explanation:
The maximum profit is found where the derivative of the profit function is 0.
y' = -2x +62 = 0
x = 62/2 = 31
Then the maximum profit is ...
y = (-x +62)x -410
y = (-31 +62)(31) -410 = 961 -410 = 551
Assuming the profit is in dollars, the maximum profit the company can make is 551 dollars.
Answer:
1/4
Step-by-step explanation:
1/2 x 1/2
Calculating the z scores for each student:
zTara = (52-64 )/8 = -12/8 = -1.5
zJamal = (82-64)/8 = 18/8 = 2.25
zSamuel = (66-64)/8 = 2/8 = 0.25
From the z score table, the probability of Tara's score being greater than -1.5 is 0.0668. Therefore, the percentage is 0.0668*100 = 6.68% which means that around 7% of the students got a better mark than Tara, with 93.32% of the students scoring lower than her.
The probability of Jamal's score being greater than 2.25 is 0.0122, therefore the percentage is 0.0122*100 = 1.22% implying that around 1% of the students got a better mark than Jamal.
The probability of Samuel's score being greater than 0.25 is 0.4013, therefore the percentage is 0.4013*100 = 40.13% which means that around 40% of the students got a better mark than Samuel, with 59.87% of the students scoring lower than him.