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2 years ago

Evaluate cos pi - sin pi/2 -2 -1 0 1

Mathematics

1 answer:

natima [27]2 years ago

3 0

A) -2

Explanation on pictures

For step 3 where it says Simplify the only thing it has is -2

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UCF is a major Metropolitan University located in Orlando Florida. UCF is advertising their bachelor in Economics with the stati

Arlecino [84]

Answer:

The claim is rejected

Step-by-step explanation:

Claim: UCF is advertising their bachelor in Economics with the statistic that the starting salary of a graduate with a bachelor in economics is $ 48,500 according to Payscale (2013-13).

Null hypothesis: $H_0: \mu = 48500$

Alternate hypothesis : $H_a : \mu \neq 48500$

n = 50

Since n is more than 30 .

So we will use Z test

x=43350

Standard deviation = 15000

$Z=\frac{x-\mu}{\frac{s}{\sqrt{n}}}\\Z=\frac{43350-48500}{\frac{15000}{\sqrt{50}}}\\Z=-2.42$

Refer the z table

p value = 0.00776

$\alpha = 0.01$

p value < $\alpha$

So, We are failed to accept null hypothesis

Hence The claim is rejected

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3 years ago

Whats the value of x

Vlad [161]

Answer:

write quizzes rock cheat and press the first result you get then write the code for the game and it will show all the answers for all the question

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2 years ago

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$1.75 times 50<br><br> $1.75 times 20

Montano1993 [528]

1. 87.5 you have to multiply

2. Its 35 because you have to multiply

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2 years ago

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On Friday, a local hamburger shop sold a combined total of 309 hamburgers and cheeseburgers. The number of cheeseburgers sold wa

cupoosta [38]

Divide 309 by 3. You should get 103 (hamburgers). if you multiply that by 2 you will get 206 (cheeseburgers). Add the two together you get the total which was 309 originally.
103 hamburgers and 206 cheeseburgers.

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2 years ago

QUESTION:

Elan Coil [88]

Answer:

Step-by-step explanation:

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2 years ago