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poizon [28]
2 years ago
10

What is cos (A)? Pls help!!

Mathematics
1 answer:
Elan Coil [88]2 years ago
4 0
(Sqrt 87)/16
Please mark brainliest
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Four accounting majors, two economics majors, and three marketing majors have interviewed for five different positions with a la
Slav-nsk [51]

Answer:

Option c

Step-by-step explanation:

From the question we are told that:

Four accounting majors N_a=4

Two economics majors  N_e=2

Three marketing majors  N_m=3

Total Applicants N_T=9

Generally the equation for Different ways that five of these could be hired is mathematically given by

X_5=^9P_5

X_5=\frac{9!}{(9-5)!}

X_5=15120

Generally the equation for Different ways that Three of these could be hired is mathematically given by

X_3=^9P_3

X_3=\frac{9!}{(9-5\3)!}

X_3=504 ways

Option c

5 0
3 years ago
The tread life of tires mounted on light-duty trucks follows the normal probability distribution with a mean of 60,000 miles and
klasskru [66]

Answer: C) 0.8664.

Step-by-step explanation:

Given, The tread life of tires mounted on light-duty trucks follows the normal probability distribution with \mu=60,000\text{ miles}\ \&\ \ \sigma=4,000\text{ miles} .

Let \overline{x} be the sample mean tire life of any 4 tires.

Now , the probability that the mean tire life of these four tires is between 57,000 and 63,000 miles will be :-

P(57000

For Very likely , the probability should lie between 0.95 and 1.

Hence, the correct answer is C) 0.8664.

4 0
3 years ago
Two numbers have a sum of 50 If one number is​ p, express the other number in terms of p.
Alexeev081 [22]

the other number is 50 - p

Consider a numeric example

2 numbers sum to 5 , one of the numbers is 3 what is the other ?

Obviously 2 , that is 5 - 3 = 2 gives the number

In the same way the number here is p and 50 - p is the other number




5 0
3 years ago
Which expression is NOT equivalent to the other three?
Andrew [12]
The answer is C. -6+n+9n
6 0
3 years ago
The numerical value of the variance a. is negative if the mean is negative. b. is always larger than the numerical value of the
Snowcat [4.5K]

Answer:

Step-by-step explanation:

Variance is the sum of squares of all items x from mean.  i.e

Variance = \Sigma (x-xbar)^2

Being the sum of squares variance can never be negative irrespective of mean being negative.

Std deviation is the square root of variances.  This will thus be less than variance if variance >1 other wise std deviation will be bigger than variance.

Hence option d is right.

8 0
3 years ago
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