Answer:
3
Step-by-step explanation:
$25×6.50=152.5
50÷13=0.26
Answer:
total area = 530 ft^2
Step-by-step explanation:
bottom = 8 x 25 = 200 ft^2
2 sides = 8 x 5 x 2 = 80 ft^2
2 other sides = 25 x 5 x 2 = 250 ft^2
200 + 80 + 250 = 530 ft ^2
angle 7 = 99 degrees ( alternate angles)
Answer: 4
Step-by-step explanation:
Given
PA=6, PD=4, BE=5
We know, If PEB is a secant that intersects the circle at E and B and PA be a tangent at A, then
![PA^2=PE\cdot PB](https://tex.z-dn.net/?f=PA%5E2%3DPE%5Ccdot%20PB)
Substitute the given values
![\Rightarrow 6^2=(PE+BE)\cdot(PE)\\\Rightarrow 36=(PE+5)\cdot(PE)](https://tex.z-dn.net/?f=%5CRightarrow%206%5E2%3D%28PE%2BBE%29%5Ccdot%28PE%29%5C%5C%5CRightarrow%2036%3D%28PE%2B5%29%5Ccdot%28PE%29)
Take ![PE=x](https://tex.z-dn.net/?f=PE%3Dx)
![\Rightarrow 36=x^2+5x\\\Rightarrow x^2+5x-36=0\\\Rightarrow x^2+9x-5x-36=0\\\Rightarrow (x+9)(x-4)=0\\\Rightarrow x=-9,4](https://tex.z-dn.net/?f=%5CRightarrow%2036%3Dx%5E2%2B5x%5C%5C%5CRightarrow%20x%5E2%2B5x-36%3D0%5C%5C%5CRightarrow%20x%5E2%2B9x-5x-36%3D0%5C%5C%5CRightarrow%20%28x%2B9%29%28x-4%29%3D0%5C%5C%5CRightarrow%20x%3D-9%2C4)
Discard ![x=-9](https://tex.z-dn.net/?f=x%3D-9)
![\therefore PE=4](https://tex.z-dn.net/?f=%5Ctherefore%20PE%3D4)
Slope intercept form = Y = Mx + B
15 = -3y + 21x
3y = 21x - 15
Y = 21/3 X - 15/3
Y = 7x - 5 = SI Form