B. When you find the root of 38, you will get 6.164. So that eliminates A and D. Then when you look closer, you will see that C looks closer to 6.4 or even 6.5 than 6.164, which leave you with B being the answer.
Answer:
Step-by-step explanation:
First you need to use your information to set up a proportion. (put your parts over the wholes and a variable in the blank spot.
<u>part </u> <u> part</u>
whole whole
<u>2 </u> <u>6</u>
x 150
Now you use the butterfly method, cross multiply the numerator and denominator and then divide that answer by the remaining numerator or denominator. This will give you the missing value for your variable.
150 x 2 = 300 300 ÷ 6 = 50
Answer: 
Step-by-step explanation:
Given
Here the given figure can be divided into two shapes i.e. rectangle and a trapezium
For rectangle ABCD Area = 
Area of trapezium CEFD Area is ![\frac{1}{2}[\text{sum of non-parallel sides}]\times[\text{distance between them}]](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%5B%5Ctext%7Bsum%20of%20non-parallel%20sides%7D%5D%5Ctimes%5B%5Ctext%7Bdistance%20between%20them%7D%5D)
![\Rightarrow \frac{1}{2}\times [10+17][10]=135\ cm^2](https://tex.z-dn.net/?f=%5CRightarrow%20%5Cfrac%7B1%7D%7B2%7D%5Ctimes%20%5B10%2B17%5D%5B10%5D%3D135%5C%20cm%5E2)
Total shaded area 
Answer:
Step-by-step explanation:
<u>Simplify</u>
- 6√20 + 8√5 - 5√45 =
- 6√4(5) + 8√5 - 5√9(5) =
- 6(2)√5 + 8√5 - 5(3)√5 =
- (12 + 8 - 15)√5 =
- 5√5
