I WILL GIVE YOU BRAINLIEST AND 20 POINTS PLEASE HELP!
Do these two cards represent the same relationship? Explain how you know.
0.79 / 16 oz = 0.049 ( price for 1 oz of brown rice)
3.49 / 32 = 0.109 ( price for 1 oz of white rice)
the price per oz of brown rice is cheaper then 1 oz of white rice so the brown rice is the better deal
Answer:
x = -4/5 and -1/2
Step-by-step explanation:
"Finding zeroes" means find the x-values that make f(x) = 0, so we have...
0 = 10x² + 9x + 2
Use quadratic equation to solve...
x = [-9 ± √(9² - 4(10)(2))]/[2(10)]
x = [-9 ± √(81 - 80)]/20
x = [-9 ± √1]/20
x = [-9 ± 1]/20
x = (-9 + 1)/20 and (-9 - 1)/20
x = -8/20 and -10/20
x = -4/5 and -1/2
Answer:
* * *
|-4|___|-3|___|-2|___|-1|___|0|___|1|___|2|___|3|___|4|___|5|___|6|
Step-by-step explanation:
You are looking for a dot over -2 (that is 2 units to the left of 0).
You are looking for a dot over 3 (that is 3 units to the right of 0).
You are looking for a dot over 4 (that is 4 units to the right of 0).
If you find one of the graphs matches this, then you should select.
The graph would look like this:
* * *
|-4|___|-3|___|-2|___|-1|___|0|___|1|___|2|___|3|___|4|___|5|___|6|
Thrice means three, so 3 times the difference of x and 4.
3(x - 4) < 9
multiply 3 by all in parentheses
(3*x) + (3*-4) < 9
3x - 12 < 9
add 12 to both sides
3x < 21
divide both sides by 3
x < 7
ANSWER: x < 7
Hope this helps! :)
