Answer:
B.) 18
Step-by-step explanation:
To find the correct b value we use this formula
b² - 4ac = 0
b = What we are solving for
a = 1
c = 81
b² - 4(1)(81) = 0
b² - 324 = 0
b² = 324
b = ±18
And 18 is one of the answer choices
So B.) 18 is the correct answer.
Answer:
230
Step-by-step explanation:
the angle 115 is half of that arc
Answer:
idk theother formulas besides the first so here I will just answer what ik to attempt to help
Step-by-step explanation:
rise over run
rise/run
Answer: A. About 75% of the time, the median number of letters from the samples of first names was greater than or equal to 5. about the same percentage of the time, the median number of letters from the samples of last names was less than or equal to 5
Step-by-step explanation: now i am not sure if this is right but based on the graph I am most likely right so I might be right I might be wrong and I am very sorry if I am wrong
I'm pretty sure the answer is C. 78%. (KEEP READING)
Because you move the decimal over to the right two times and get 70 add a percent to the end and get 70%. _
But since it is repeating it would be 77%
So if you are rounding it to the nearest number, to ones, then the answer is C. But if you are rounding to the tens then it would be D.
I personally would put C because you want the "nearest percent".
HOPE I HELPED!!!
