Plz help! Will give brainliest and points!
1 answer:
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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:
bushels of apples were sold
Step-by-step explanation:
Let
x----> bushels of peaches
y----> bushels of apples
we know that
-----> equation A
-----> equation B
substitute equation B in equation A and solve for y
We know that distance = rate(time). We need to solve for time here.
The car took 2 hours to travel 90 miles at a speed of 45 mi/hr
Here is how to graph it :) :
