Answer:
A. 10
B. 300
C. -3
D. -3,567
Step-by-step explanation:
im pretty sure this is coreect i apologize if not
2x^2-7x-4=0
2x^2-8x+x-4=0
2x(x-4)+1(x-4)=0
(2x+1)(x-4)=0
x=-1/2, 4
Average speed is 12.6 miles per hour
<em><u>Solution:</u></em>
Given that team tool bella canoed 
miles in 
hours
To find: average rate of speed in miles per hour
From given information,
To find the speed we use the below formula,
Substituting the given values we get,
Thus average speed is 12.6 miles per hour
Quadratic Formula is (-b ±√(b²-4ac))/2a
With that being said:
y=2x²-5x-1 is in the correct form of ax²+bx+c
Now just plug in:
5±√(25-4(2 x-1))
5± √25+8
(5±√33)/2(2)
Answer is D
100% Sure
Brainliest?
Answer:
Regular price: $429
35% discount: 278.85
5% tax: $13.94
Final cost: 292.79
Step-by-step explanation:
regular price=$429
0.35(429)=150.15
429-150.15=278.85
35% discount amount: $278.85
278.85(0.05)=13.94
278.85+13.94=292.79
