Answer:
Sin, Cos, Tan and others are used to calculate the ratios of the sides of a right angled triangle by taking a certain angle as the angle of reference.
On the other hand, Sin‐¹, Cos‐¹ and Tan-¹ are used to find the reference angle used to calculate the ratio of sides.
For this question,
we need to find which option should used to calculate the angle the slide makes with the vertical support.
So the option will have to be either A, C or E.
here, the base is 2.81m and hypotenuse is 3.64m.
we know, Cos = base / hypotenuse
So the angle is given by Cos-¹(2.81/3.64)
Option C
Answer:
E(X ¯)=210,000.
Step-by-step explanation:
A sampling distribution for samples of size n=49 from a population with means μ=210,000 and standard deviation σ=35,000, has the following means anda standard deviation:

If X ¯ is the mean sales price of the sample, it will have a mean value of E(X ¯)=210,000.
Answer:
Weight of cereal in box in pound is 1.32277 pound
Given that;
Weight of cereal in box = 600 grams
Find:
Weight of cereal in box in pound
Computation:
1 gram = 0.00220462 pound
So,
600 gram = 600 × 0.00220462 pound
600 gram = 1.32277
Weight of cereal in box in pound = 1.32277 pound
Step-by-step explanation:
<h2>HOPE IT HELPS YOU</h2>
68900%
Step-by-step explanation:
wherever the decimal point is you place the percent sign two places over