<em><u>Complete Question:</u></em>
A restaurant uses 4.375 pounds of cheese every 8 and 3/4 pizzas. At this rate how many pounds of cheese are used per pizza?
<em><u>Answer:</u></em>
0.5 pounds of cheese are used per pizza
<em><u>Solution:</u></em>
Given that,
A restaurant uses 4.375 pounds of cheese every 8 and 3/4 pizzas
Therefore,
We have to find pounds used per pizza
Let "x" be the pounds used per pizza
Then,
By cross multiplying,
Thus, 0.5 pounds of cheese are used per pizza
7x + 1 = x + 7
7(1) + 1 = 8
1 + 7 = 8
If you substitute 1 for x, the statement is true. Therefore, x = 1.
Answer:
<h3>
It can be concluded that this polynomial has a degree of 2, so the equation x²+x−12=0 has exactly two root</h3>
Step-by-step explanation:
Given the quadratic polynomial x²+x−12, the highest power in the quadratic polynomial gives its degree. The degree of this quadratic polynomial is therefore 2. <u>This means that the equation has exactly two solutions. </u>
Let us determine the nature of the roots by factorizing the quadratic polynomial and finding the roots.
x²+x−12 = 0
x²+4x-3x−12 = 0
= (x²+4x)-(3x−12) = 0
= x(x+4)-3(x+4) = 0
= (x-3)(x+4) = 0
x-3 = 0 and x+4 = 0
x = 3 and -4
This shows that the quadratic polynomial has <u>two real roots</u>
<u>It can be concluded that this polynomial has a degree of 2, so the equation x²+x−12=0 has exactly two roots</u>
Complementary angles add up to 90 degrees. Therefore, the answer is c. 18 + 72 = 90
C is the correct answer because triangles always equal to 180 degrees
