Sin (a+b) = sin a. cos b + cos a. sin b
a= 50° and b=40°, then
sin(50+40) = sin 50° . cos 40° + cos 50° . sin 40°
sin(50+40) = sin 90° = 1 and
sin 50° . cos 40° + cos 50° . sin 40° = 1
Answer:
4/7 = 8/14
Step-by-step explanation:
so we are using some conversions here
so first convert 30,360ft=?miles
we are going to use
division like SBD
silly babies dancing an example ofc so it means small to big,divide so,
30,360ft÷5,280=5.75miles
5,280 is how many ft are in a mile.:)
so no,Morgan wasn't over 6 miles
Using the t-distribution, as we have the standard deviation for the sample, it is found that the 95% confidence interval is (29.6, 44.4).
<h3>What is a t-distribution confidence interval?</h3>
The confidence interval is:

In which:
is the sample mean.
- s is the standard deviation for the sample.
The critical value, using a t-distribution calculator, for a <u>two-tailed 95% confidence interval</u>, with 25 - 1 = <em>24 df</em>, is t = 2.0639.
The other parameters are given by:
.
Hence, the bounds of the interval are given as follows:


The 95% confidence interval is (29.6, 44.4).
More can be learned about the t-distribution at brainly.com/question/16162795
Answer:
b. 3
Step-by-step explanation: