Log_(10)(x² - 4x + 7) = 2
Take the base 10 anti log of both sides.
x² - 4x + 7 = 10² = 100
x²- 4x - 93 = 0
Quadratic Formula
x = [4 ± √(4²-4(1)(-93))]/[2(1)] = [4 ± 2√97)]/2 = 2 ± √97
Answer:
estimated answer: 115
Step-by-step explanation:
By number sentence im guessing a word problem so if i'm wrong I apologize.
Johnny had 927 pokemon cards he wanted to get rid of so he shared them equally amongst 8 friends. If each friend received the same amount of cards than each friend shall receive about 115 cards
B is the correct answer. If you use the distributive property correctly you will see why.
(4x+3)(2x+1)= 8x^2+4x+6x+3
= 8x^2+10x+3
please vote my answer brainliest. thanks!
By the Pythagorean theorem,
.. x^2 +(x -46)^2 = (x +4)^2
.. 2x^2 -92x +2116 = x^2 +8x +16
.. x^2 -100x +2100 = 0
.. (x -50)^2 -400 = 0
.. x = 50 ±20 . . . . . only x=70 makes any sense in the problem
The height, x, of the tree is 70 meters.
8:15 am is the answer because if u add up all of the timings it will become an hour and a half
And when u minus an hour and a half from 10:45 u get 8:15
