Tangent = opposite/adjective
tan(C) = c/a
We can use an inverse ratio to find the measure of <C.
C = tan^-1(c/a)
The opposite would be a positive number, since to the left of zero is negative.
Answer: B. 80
Step-by-step explanation:
We know that the formula to find the sample size is given by :-
![n=(\dfrac{z^*\cdot\sigma}{E})^2](https://tex.z-dn.net/?f=n%3D%28%5Cdfrac%7Bz%5E%2A%5Ccdot%5Csigma%7D%7BE%7D%29%5E2)
, where
= population standard deviation.
E= margin of error
z*= Two -tailed critical z-value
Given : Confidence level = 98% =0.98
![\alpha=1-0.98=0.02](https://tex.z-dn.net/?f=%5Calpha%3D1-0.98%3D0.02)
Population standard deviation : ![\sigma=300](https://tex.z-dn.net/?f=%5Csigma%3D300)
Also, from z-table for
(two tailed ), the critical will be = ![z^*=2.326](https://tex.z-dn.net/?f=z%5E%2A%3D2.326)
Then, the required sample size must be :
[To the nearest option]
Hence, the required sample size = 80
Hence, the correct option is option B. 80
Answer: 7 1/2
Step-by-step explanation:
From the question, we are informed that a large bag of chocolate chips contains 11 1/4 cups and that a cookie recipe needs 1 1/2 cups of chocolate chips.
The number of times that the cookie recipe can be made will be:
= 11 1/4 ÷ 1 1/2
= 45/4 ÷ 3/2
= 45/4 × 2/3
= 7 1/2
The recipe can be made 7 1/2 times
Answer:
Step-by-step explanation:
In where my friend
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