I think you will have t use theorem
Ba=Rv^2+vo^2
Ba=4^2+7^2
Ba=16+49
Ba=65
I am not sure about the answer but all you have to think about is what is 100 divided by 3
Answer:
![( {x}^{2} - 5)( {x}^{2} + 9) = 0](https://tex.z-dn.net/?f=%28%20%7Bx%7D%5E%7B2%7D%20%20-%205%29%28%20%7Bx%7D%5E%7B2%7D%20%20%2B%209%29%20%3D%200)
Step-by-step explanation:
The given expresion is
![{x}^{4} + 4 {x}^{2} - 45 = 0](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B4%7D%20%20%2B%204%20%7Bx%7D%5E%7B2%7D%20%20-%2045%20%3D%200)
We can rewrite this as:
![({ {x}^{2}) }^{2} + 4 {x}^{2} - 45 = 0](https://tex.z-dn.net/?f=%20%28%7B%20%7Bx%7D%5E%7B2%7D%29%20%7D%5E%7B2%7D%20%20%2B%204%20%7Bx%7D%5E%7B2%7D%20%20-%2045%20%3D%200)
We obtained a quadratic equation in x²
Let us split the middle term to get:
![({ {x}^{2}) }^{2} + 9 {x}^{2} - 5{x}^{2} - 45 = 0](https://tex.z-dn.net/?f=%28%7B%20%7Bx%7D%5E%7B2%7D%29%20%7D%5E%7B2%7D%20%20%2B%209%20%7Bx%7D%5E%7B2%7D%20%20-%20%205%7Bx%7D%5E%7B2%7D%20%20-%2045%20%3D%200)
We factor by grouping to get:
![{x}^{2} ( {x}^{2} + 9) - 5( {x}^{2} + 9) = 0](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%28%20%7Bx%7D%5E%7B2%7D%20%20%2B%209%29%20-%205%28%20%7Bx%7D%5E%7B2%7D%20%20%2B%209%29%20%3D%200)
We factor further to get:
![( {x}^{2} - 5)( {x}^{2} + 9) = 0](https://tex.z-dn.net/?f=%28%20%7Bx%7D%5E%7B2%7D%20%20-%205%29%28%20%7Bx%7D%5E%7B2%7D%20%20%2B%209%29%20%3D%200)
The correct answer is A.
Answer:
6 2/3 minutes
Step-by-step explanation:
6 2/3 minutes
Step-by-step explanation:
Amare runs 1/10 mile in 2/3 minutes
Therefore his speed in miles per minutes clean be calculated as follows
= 1/10, the denominator here is 10
= 10 × 2/3
= 20/3
= 6 2/3 minutes
Answer:
7.3 inches
Step-by-step explanation:
Use the Pythagorean Theorem:
![a^2+b^2=c^2\\7^2+2^2=c^2\\49+4=c^2\\53=c^2\\\sqrt{53}=c\\7.28\approx c](https://tex.z-dn.net/?f=a%5E2%2Bb%5E2%3Dc%5E2%5C%5C7%5E2%2B2%5E2%3Dc%5E2%5C%5C49%2B4%3Dc%5E2%5C%5C53%3Dc%5E2%5C%5C%5Csqrt%7B53%7D%3Dc%5C%5C7.28%5Capprox%20c)
Therefore, the length of the hypotenuse is about 7.3 inches