O A. 17 degrees O B. 163 degrees O C. 73 degrees
2 answers:
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Answer:
Step-by-step explanation:
We know that the standard quadratic equation is ax^2+bx+c=0
Let's compare all the given equation to it and , find discriminant.
1. a=2, b= -7, c=-9
So it has 2 real number solutions.
2. a=1, b=-4, c=4
So it has only 1 real number solution.
3. a=4, b=-3, c=-1
So it has 2 real number solutions.
4. a=1, b=-2, c=-8
So it has 2 real number solutions.
5. a=3, b=5, c=3
Thus it does not has real solutions.
Answer:
Timy earned $116.25 this week.
Step-by-step explanation:
Timy earns $7.75 from his part-time job at Walmart.
Let us suppose this is his hourly rate.
He worked 5 hours on Monday, 3 hours on Wednesday and 7 hours on Friday.
So, total hours he worked = hours
Now, his earnings will be = dollars
Therefore, Timy earned $116.25 this week.