I'm assuming your question says r² - 94 = 0.
Because this equation is quadratic due to the exponent of 2, we can already say that it has 2 solutions. Those solutions would be √94 , and -√94.
I hope this helps!
<h3>
Answer: B) 9</h3>
The denominators are 9 and 3
The LCM (lowest common multiple) of 9 and 3 is 9. Therefore the LCD is 9. Multiplying both sides by the LCD 9 will clear out the fractions.
Answer:
A (361)
Step-by-step explanation:
A "perfect square trinomial" has the form
ax^2 + 2ab + b^2. If a happens to be 1, which it is in the given x^2 − 19x + c, then 2(1)(b) = - 19. Solving for b, we get b = -19/2.
Then b^2 in the general "perfect square trinomial" is the same as c: (-19/2)^2, or 90.25, or 90 1/4, or 361/4/
Choosing A (361) makes the given expression a perfect square trinomial.
She will get $1.42 in change
10-8.58=1.42