Answer:
D. 405
Step-by-step explanation:
First, you find the area of the swimming pool without the water. That is 9 x 9 = 81. Then you multiply the area (without water) by 5 to find the area with the water.
Answer:
![\mathsf {x = 76}](https://tex.z-dn.net/?f=%5Cmathsf%20%7Bx%20%3D%2076%7D)
Step-by-step explanation:
The given pair of angles lie on a line, hence they are classified as linear angles. They possess the property by which their sum is equal to 180°.
![\textsf {Solving :}](https://tex.z-dn.net/?f=%5Ctextsf%20%7BSolving%20%3A%7D)
![\implies \mathsf {x + 17 + 87 = 180}](https://tex.z-dn.net/?f=%5Cimplies%20%5Cmathsf%20%7Bx%20%2B%2017%20%2B%2087%20%3D%20180%7D)
![\implies \mathsf {x + 104 = 180}](https://tex.z-dn.net/?f=%5Cimplies%20%5Cmathsf%20%7Bx%20%2B%20104%20%3D%20180%7D)
![\implies \mathsf {x = 180 - 104}](https://tex.z-dn.net/?f=%5Cimplies%20%5Cmathsf%20%7Bx%20%3D%20180%20-%20104%7D)
![\implies \mathsf {x = 76}](https://tex.z-dn.net/?f=%5Cimplies%20%5Cmathsf%20%7Bx%20%3D%2076%7D)
Answer:
Step-by-step explanation:
![\frac{x}{a} +\frac{x}{b} =c\\a\ne 0,b \ne 0,a \ne -b ~or~a+b \ne 0 \\x(\frac{1}{a} +\frac{1}{b} )=c\\x(\frac{b+a}{ab} )=c\\x=\frac{abc}{a+b}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7Ba%7D%20%2B%5Cfrac%7Bx%7D%7Bb%7D%20%3Dc%5C%5Ca%5Cne%200%2Cb%20%5Cne%200%2Ca%20%5Cne%20-b%20~or~a%2Bb%20%5Cne%200%20%5C%5Cx%28%5Cfrac%7B1%7D%7Ba%7D%20%2B%5Cfrac%7B1%7D%7Bb%7D%20%29%3Dc%5C%5Cx%28%5Cfrac%7Bb%2Ba%7D%7Bab%7D%20%29%3Dc%5C%5Cx%3D%5Cfrac%7Babc%7D%7Ba%2Bb%7D)
Answer:
-3 constant , x variable +7 constant
It is repeated to double the previous number.