Answer:
x = - 2√2
x = -2
Step-by-step explanation:
A . 5 + x² = 2 x² +13
5 + x² - 2 x² - 13 = 0
- x² -8 = 0
- x² = 8
x² = -8
x = - √8
x = - 2√2
B . 5 + x³ = 2 x³ + 13
5 + x³- 2 x³ - 13 = 0
- x³ -8 = 0
-x³ = 8
x³ = -8
x = - ∛8
x = -2
Answer:
it is D.... PERIODT
Step-by-step explanation:
Answer:
x-coordinate is the first element in an ordered pair.
Answer:
The length of the other leg of the triangle is
units.
Step-by-step explanation:
The Pythagorean Theorem says that: <em>If a and b are the lengths of the legs of a right triangle and c is the length of the hypotenuse, then the sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse.
</em>
This relationship is represented by the formula:
![a^2+b^2=c^2](https://tex.z-dn.net/?f=a%5E2%2Bb%5E2%3Dc%5E2)
where <em>a</em> and <em>b</em> are the legs and <em>c</em> is the hypotenuse of the right triangle.
From the information given we know that one leg is 5 units and the hypotenuse is 8 units.
Applying the above formula and solving for <em>b</em> we get that
![5^2+b^2=8^2\\\\5^2+b^2-5^2=8^2-5^2\\\\b^2=39\\\\b=\sqrt{39}](https://tex.z-dn.net/?f=5%5E2%2Bb%5E2%3D8%5E2%5C%5C%5C%5C5%5E2%2Bb%5E2-5%5E2%3D8%5E2-5%5E2%5C%5C%5C%5Cb%5E2%3D39%5C%5C%5C%5Cb%3D%5Csqrt%7B39%7D)
i would go with either a or b