Answer:
A. increase the sample size
Step-by-step explanation:
By increasing sample size, the amount of data included in the statistical calculation is more. As the size increases, the uncertainty decreases, hence the confidence level on our estimate is higher. By having more sample, we have more accurate analysis, and our margin of error can be reduced as well.
Well first we can do 450/600 now start dividing we can first with 100 so now we have 45/60 now what is the next thing we can divide it by? We can divide it by 15 45/15=3 and 60/15=4. Now we know 3/4 Euros per USD so what is equivalent to 3/4? A) .75 is equivalent to 3/4
Your Answer is A
Answer:
First, second, and fourth are true.
Step-by-step explanation:
Ok, so let's get to it.
The first statement is true, since 6 * 4 = 24.
The second statement is also true, since the 4 triangles are the 4 sides.
The third statement is false since they aren't congruent since they don't have a consistent ratio.
The fourth one is true, since 24(2) + 18.4 does indeed equal to 66.4
The fifth one is false since only the <u>base </u>has an area of 24.
:)
Answer:
Help me with my question
Step-by-step explanation:
Use the cosine law to find the length of side c:
![\begin{gathered} c^2=1^2+9^2-2(1)(9)\cos 60 \\ c^2=1+81-18\cos 60 \\ c^2=82-18\cos 60 \\ c^2=82-9 \\ c^2=73 \\ c=\sqrt[]{73} \\ c\approx8.54 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20c%5E2%3D1%5E2%2B9%5E2-2%281%29%289%29%5Ccos%2060%20%5C%5C%20c%5E2%3D1%2B81-18%5Ccos%2060%20%5C%5C%20c%5E2%3D82-18%5Ccos%2060%20%5C%5C%20c%5E2%3D82-9%20%5C%5C%20c%5E2%3D73%20%5C%5C%20c%3D%5Csqrt%5B%5D%7B73%7D%20%5C%5C%20c%5Capprox8.54%20%5Cend%7Bgathered%7D)
Use the cosine law to find the measure of angles A or B:
![\begin{gathered} \\ \frac{\sin A}{a}=\frac{\sin B}{b}=\frac{\sin C}{c} \\ \\ To\text{ find angle A:} \\ \frac{\sin A}{a}=\frac{\sin C}{c} \\ \\ \frac{\sin A}{1}=\frac{\sin 60}{\sqrt[]{73}} \\ \\ \sin A=\frac{\sin 60}{\sqrt[]{73}} \\ \\ A=\sin ^{-1}(\frac{\sin60}{\sqrt[]{73}}) \\ \\ A\approx5.82º \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%20%5C%5C%20%5Cfrac%7B%5Csin%20A%7D%7Ba%7D%3D%5Cfrac%7B%5Csin%20B%7D%7Bb%7D%3D%5Cfrac%7B%5Csin%20C%7D%7Bc%7D%20%5C%5C%20%20%5C%5C%20To%5Ctext%7B%20find%20angle%20A%3A%7D%20%5C%5C%20%5Cfrac%7B%5Csin%20A%7D%7Ba%7D%3D%5Cfrac%7B%5Csin%20C%7D%7Bc%7D%20%5C%5C%20%20%5C%5C%20%5Cfrac%7B%5Csin%20A%7D%7B1%7D%3D%5Cfrac%7B%5Csin%2060%7D%7B%5Csqrt%5B%5D%7B73%7D%7D%20%5C%5C%20%20%5C%5C%20%5Csin%20A%3D%5Cfrac%7B%5Csin%2060%7D%7B%5Csqrt%5B%5D%7B73%7D%7D%20%5C%5C%20%20%5C%5C%20A%3D%5Csin%20%5E%7B-1%7D%28%5Cfrac%7B%5Csin60%7D%7B%5Csqrt%5B%5D%7B73%7D%7D%29%20%5C%5C%20%20%5C%5C%20A%5Capprox5.82%C2%BA%20%5Cend%7Bgathered%7D)
