Answer:
2.45 gallons
Step-by-step explanation:
1. Translate 
into a whole number or decimal number: 14.
2. We know that Dr. Silvers filled her tank with 11.55 gallons of gas, so subtract 11.55 from 14.
3. There were 2.45 gallons of gas in Dr. Silvers gas tank before she filled it up.
To solve this problem you must apply the proccedure shown below:
1. You have the following quadratic equation given in the exercise above:
2x²−6x+1=0
2. The quadratic equation is:
x=[-b±√(b²-4ac)]/2a
Where:
a=2
b=-6
c=1
3. When you substitute these values into the quadratic equation, you obtain:
x=3/2-√(7)/2
x=3/2+√(7)/2
<span>A. 54°; acute is the answer</span>
The answer is 7
<span>q−3<span>−6q</span>=3+6q<span>−6q</span>←</span> subtract 6a from both sides
<span>7a−6q−3<span>+3</span>=3<span>+3</span> ←</span> add 3 to both sides
<span>a=6 ←</span> this is the solution..
Step-by-step explanation:
always begin any problem by writing what you know
circumference is
u = 2 pi r
1)
u=3.14
r=?
3.14 = 2 pi r
Solve for r
the rest of the problems you just plug the numbers into the formula
