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3 years ago

Select Is a Function or Is not a Function to correctly classify each relation.

1 answer:

8 0

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If 1-√3 cot (x+15°)=0, find the acute angle x

True [87]

1 - √3 cot (x + 15) = 0

√3 cot(x + 15) = 1

tan (x + 15) = √3

x + 15 = 60

x = 45 degrees answer

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3 years ago

Evaluate the expression when c=21 and d=5.<br> C-35/d

LenaWriter [7]

-2.8 is the answer ……..

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3 years ago

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10 POINTS AND BRAINLIEST PLEASE HELP!!!!!

GenaCL600 [577]

Answer:

thi s is only 5 points

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3 years ago

Describe a real life scenario where inequalities are used and state the inequality

Hunter-Best [27]

AS North Korea is generally closed off the foreigners, the Nato nations & others can only guess how much nukes the NK have. Due to reports of missiles flying & landing in water, we can interpret that they have more than 1 missile. However, we believe that they have less than 100 still

1 < x < 100

this means that x is greater than 1, yet less than 100.

hope this helps

4 0

3 years ago

Last year, 46% of business owners gave a holiday gift to their employees. A survey of business owners indicated that 20% plan to

alisha [4.7K]

Answer:

Part a: So the number of business owners giving holiday gift to their employees from survey is 12.

Part b: p-value is 0.00003

Part c: value of p is less that a we reject the null hypothesis.

Step-by-step explanation:

Part a

number of business owners=20% x n

number of business owners= 0.2x 60

number of business owners=12

Part b

H0: p=0.46

H1: p<0.46

Here

n=60, $\hat{p}$ =0.2, p=0.46

So test statistics is given as

$z=\frac{\hat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}\\z=\frac{0.20-0.46}{\sqrt{\frac{0.46(1-0.46)}{60}}}\\z=\frac{-0.26}{0.064}\\z=-4.04$

p-value is P(z<-4.04)= 0.00003

Part c

As value of p is less that a we reject the null hypothesis.

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3 years ago