Hello!
You can use the Pythagorean Theorem
![a^{2} + b^{2} = c^{2}](https://tex.z-dn.net/?f=a%5E%7B2%7D%20%2B%20b%5E%7B2%7D%20%3D%20c%5E%7B2%7D%20)
c is the hypotenuse which is the side across the right angle
a and b are the other sides
Put in the values you know
![a^{2} + 5^{2} = 12^{2}](https://tex.z-dn.net/?f=%20a%5E%7B2%7D%20%2B%205%5E%7B2%7D%20%3D%2012%5E%7B2%7D%20)
Square the numbers
![a^{2} + 25 = 144](https://tex.z-dn.net/?f=a%5E%7B2%7D%20%2B%2025%20%3D%20144)
Subtract 25 from both sides
![a^{2} = 119](https://tex.z-dn.net/?f=%20a%5E%7B2%7D%20%3D%20119)
Take the square root of both sides
a = 10.9
The answer is D) 10.9 centimeters
Hope this helps!
Answer:
a= 6
Step-by-step explanation:
slope = (y2 - y1)/(x2 - x1)
3/8 = (3 - 0)/(a - (-2))
cross multiplying,
3(a + 2) = 3(8)
3a + 6 = 24
3a = 18
a = 18/3
a = 6
Answer:
b
Step-by-step explanation:
40 + 90 =130
180-130=50
Answer:
(x-1)(x-7)
Step-by-step explanation:
To factor the equation, find two binomials which multiply to a quadratic. The quadratic's factors are found by finding two numbers that multiply to 7 and add to -8.
-1 and -7 multiply to 7 and add to -8.
(x-1)(x-7)