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.
It would most likely take 3-4 hours, maybe even 5.
9514 1404 393
Answer:
60 square units
Step-by-step explanation:
The area is given by the formula ...
A = bh
The base of this parallelogram is 15 units, and its height is 4 units. The area is ...
A = (15 u)(4 u) = 60 u²
The area is 60 square units.
Answer:
Your answer is.....
170 students
Mark it as brainlist answer . follow me for more answer.
Step-by-step explanation:
Perhaps you want to know what the number is?
3n -8 = 7
3n = 15 . . . . . add 8
n = 5 . . . . . . . divide by 3
The number is 5.
