The answer to this question is D: 2. To solve this, you must work backwards, and what's the oppsite of addition? Subtraction! Take 2.34, your final answer, and subtract .34 from it, and you end up with 2! I hope this helped! Could I possible get brainliest?
A quadrant is the area that is divided into the x and y axes
The quadrants in which tan and cot are positive are I and III
<h3>How to determine the quadrants</h3>
The tangent of an angle is calculated as:
While the cotangent of the angle is calculated as:
The above equations mean that:
For the tangent and cotangent of an angle to be positive, then the sine and the cosine of the angle must have the same sign.
- In the first quadrant, the sine and the cosine angles are positive.
- In the third quadrant, the sine and the cosine angles are negative.
Hence, the quadrants in which tan and cot are positive are I and III
Read more about trigonometry ratios at:
brainly.com/question/8120556
Answer: 10 - 30y - 5w
Step-by-step explanation:
Multiply each value of the first parenthesis to -5. Start with -2 (10), then 6y (-30y), and lastly w (-5w). Combine all the terms in order.
Answer:
(a) The odds of event E is 4/3.
(b) The odds of event E is 3/2.
Step-by-step explanation:
Formula for probability of an event:
Formula for odds of an event:
(a)
It is given that
The probability of unfavorable event
Odds of event E is
Therefore the odds of event E is 4/3.
(b)
It is given that
The probability of unfavorable event
Odds of event E is
Therefore the odds of event E is 3/2.
Answer:
We conclude that population mean is equal to 100 at the α=0.01 level of significance.
Step-by-step explanation:
Given information:
Sample size, n=40
Sample mean=104.3
sample standard deviation, s=18.2
We need to check whether the population mean greater than 100 at the α=0.01 level of significance.
Null hypothesis:
Alternative hypothesis:
Let as assume that the data follow the normal distribution. It is a right tailed test.
The formula for z score is
Using the standard normal table the p-value at z=1.49 and 0.01 level of significance is 0.068112.
(0.068112 > 0.01) p-value is greater than α, so we accept the null hypothesis.
Therefore, we conclude that population mean is equal to 100 at the α=0.01 level of significance.