Answer:
Below in bold.
Step-by-step explanation:
If the 3 points are on the circle with the given center then the distance from each point to the center will all be equal. This distance will be the radius of the circle.
Distance of P (2, 5) from the center (4, 2)
= √( (5-2)^2 + (2-4)^2)
= √(9 + 4)
= √13.
For Q (6, -1)this distance is:
= √(6-4)^2 + (-1-2)^2)
= √13.
For R (7, 4) his distance is:
= √(7-4)^2 + (4-2)^2)
= √13
These distances are the same so the points P, Q and R lie on the circle.
The midpoint of PQ
= (2+6)/2 , (5 - 1)/2
= (4, 2).
Which is the center so this verifies the second part.
<em><u>Polynomials in standard form:</u></em>

<em><u>Solution:</u></em>
Standard form of polynomials: terms are ordered from biggest exponent to lowest exponent
<em><u>Option A:</u></em>

The above is a polynomial
Where, largest exponent is arranged first
Therefore, it is standard form of polynomial
<em><u>Option B</u></em>

Here, exponents are from greatest to least
Therefore, it is standard form of polynomial
<em><u>Option C</u></em>

Here, "t" is a variable. The first term has largest degree
Therefore, it is standard form of polynomial
The answer is E.90
1/2 inches = 10 miles
9(1/2) inches = 4 1/2 inches
9(10) miles = 90 miles
Answer: 
Step-by-step explanation:
Given
Nina bought a computer mouse for $9.30
She paid a $20 dollar bill
The money she received is the difference between what is paid and the cost of the mouse i.e.

Therefore, she gets
after deductions.
4/20, 20% chance. The store has 20 puppies. Out of them is 4 poodles. Divide 4 by the total(20). And you get 0.2, remove the decimal place and add it in front of the 0 .02 reverse the numbers 20. Replace the period with a %.