Answer:
A.
-19 9 7
[15 -7 6 ]
-2 1 1
Step-by-step explanation:
Answer: 23
Step-by-step explanation:
2x + 14 = 60
2x = 46
x = 23
Step-by-step explanation:
f(x)=2x+1 and g(x)=x²-7
(f/g)(x) = (2x+1)/(x²-7)
Using the Pythagorean Theorem, it is found that the unknown side length of the triangle is of 7.9 cm.
<h3>What is the Pythagorean Theorem?</h3>
The Pythagorean Theorem relates the length of the legs
and
of a right triangle with the length of the hypotenuse h, according to the following equation:
![h^2 = l_1^2 + l_2^2](https://tex.z-dn.net/?f=h%5E2%20%3D%20l_1%5E2%20%2B%20l_2%5E2)
Researching this problem on the internet, we have that:
- The unknown side length is of a leg of x.
- The other leg is of 9 cm.
- The hypotenuse is of 12 cm.
Hence:
x² + 9² = 12²
x = sqrt(12² - 9²)
x = 7.9 cm.
The unknown side length of the triangle is of 7.9 cm.
More can be learned about the Pythagorean Theorem at brainly.com/question/654982
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