Answer:
a. he has made a profit of $56 so far this week
b. 8t
Step-by-step explanation:
7 × 8=56
1. You have the following quadratic equation and to solve it, you must follow the steps below:
<span>
x</span>²<span>+3=9x
2. The form of the equation that you need to apply the quadratic formula, is:
ax</span>²+bx+c=0
<span>
3. Then:
</span>
x²<span>+3=9x
</span> x²-9x<span>+3=0
</span><span>
4. The quadratic formula is shown below:
x=(-b±√(b^2-4ac))/2a
5. Then, you have:
a=1
b=-9
c=3
6. When you substitute the values into the quadratic formula, you obtain:
x1=0.34
x2=8.65</span>
Answer:
a) X=0
b) X=2,-2
Step-by-step explanation:
Intersecting chords are chords that intersect one another at a point
The value of n is -18
<h3>How to determine the value of n</h3>
Using the intersecting chord theorem, we have:
Cross multiply
Collect like terms
Evaluate the differences
Divide through by 2
Hence, the value of n is -18
Read more about chords at:
brainly.com/question/13950364
It would be c2=a2+b2-2ab cos C