Answer: -506.5 or -253.25
Step-by-step explanation:
Answer:
His mom will be 33 years old.
Step-by-step explanation:
Since Adrian is 8, 3 years from now he will be 11. 11 is 1/3 of 33. So, his mom is currently 30 years old.
Ur answer will be - A≈69.65cm².
<u><em>Hope this helps!!</em></u>
Solution:
1. Move all terms to one side
<span>25{x}^{2}+40x+16-28=0</span>
2. Simplify <span>25{x}^{2}+40x+16-28 to <span>25<span>x<span><span>2</span><span></span></span></span>+40x</span></span><span><span>−12</span></span>
<span>25{x}^{2}+40x-12=0</span>
3. Apply the Quadratic Formula<span>x=\frac{-40+20\sqrt{7}}{50},\frac{-40-20\sqrt{7}}{50}
</span>
4. Simplify solutions
<span>x=-\frac{2(2-\sqrt{7})}{5},-\frac{2(2+\sqrt{7})}{5}</span>
Done!
