Answer:
D.) 8
Step-by-step explanation:
You can use the Pythagorean theorem because this is a right triangle:
![a^2+b^2=c^2](https://tex.z-dn.net/?f=a%5E2%2Bb%5E2%3Dc%5E2)
a and b are the legs and c is the hypotenuse. The hypotenuse is always the longest side in a right triangle (since it is opposite the biggest angle). The two legs squared have to add up to the hypotenuse squared.
Fill in values:
![a^2+15^2=17^2](https://tex.z-dn.net/?f=a%5E2%2B15%5E2%3D17%5E2)
Simplify exponents:
![a^2+225=289](https://tex.z-dn.net/?f=a%5E2%2B225%3D289)
Isolate the variable. Subtract 225 from both sides:
![a^2+225-225=289-225\\a^2=64](https://tex.z-dn.net/?f=a%5E2%2B225-225%3D289-225%5C%5Ca%5E2%3D64)
Find the square root of both sides:
![\sqrt{a^2}=\sqrt{64}\\ a=8](https://tex.z-dn.net/?f=%5Csqrt%7Ba%5E2%7D%3D%5Csqrt%7B64%7D%5C%5C%20%20a%3D8)
The missing leg length is 8.
In order to find b1 from your formula stated we need to do few calculations
A=hb1+hb2, as you wee I multiply h with both bases( b1 and b2)
I will subtract hb2 from both sides
hb1=A-hb2
now I will divide my new expression by h
b1=(A-hb2)/h
Answer:
VW = 7
Step-by-step explanation:
Because it is a parallelogram, UX = VW
x-4 = 2x - 15
11 = x
VW = 2 x 11 - 15
VW = 7
Answer:
If I'm guessing, you're supposed to write an equation. So the answer would be yx + 12y.
Step-by-step explanation:
X² - 4x - 77 = 0
( x + 7) ( x - 11)
x + 7 = 0
x - 11 = 0
x = -7
x = 11