Find the center and the radius of the circle x 2 + y 2 + 6 x − 16 y + 66 = 0 . [9.4a] A. Center: ( − 3 , 8 ) radius: 7 B. Center: ( − 6 , − 8 ) radius: 7 C. Center: ( − 6 , − 8 ) radius: 7 D. Center: ( − 3 , 8 ) radius: 7
Find the center and the radius of the circle x 2 + y 2 + 6 x − 16 y + 66 = 0 . [9.4a] A. Center: ( − 3 , 8 ) radius: 7 B. Center: ( − 6 , − 8 ) radius: 7 C. Center: ( − 6 , − 8 ) radius: 7 D. Center: ( − 3 , 8 ) radius: 7
Solution Summary: The author explains how to determine the correct match for the centre and the radius of the circle.
Two-dimensional figure measured in terms of radius. It is formed by a set of points that are at a constant or fixed distance from a fixed point in the center of the plane. The parts of the circle are circumference, radius, diameter, chord, tangent, secant, arc of a circle, and segment in a circle.
Directions: Use the equation A = Pet to answer each question and be sure to show all your work.
1. If $5,000 is deposited in an account that receives 6.1% interest compounded continuously, how much money is in the
account after 6 years?
2. After how many years will an account have $12,000 if $6,000 is deposited, and the account receives 3.8% interest
compounded continuously?
3. Abigail wants to save $15,000 to buy a car in 7 years. If she deposits $10,000 into an account that receives 5.7% interest
compounded continuously, will she have enough money in 7 years?
4. Daniel deposits $8,000 into a continuously compounding interest account. After 18 years, there is $13,006.40 in the account.
What was the interest rate?
5. An account has $26,000 after 15 years. The account received 2.3% interest compounded continuously. How much was
deposited initially?
TRIANGLES
INDEPENDENT PRACTICE
ription Criangle write and cow
Using each picture or description of triangle write and solve an equation in ordering the
number of degrees in each angle
TRIANGLE
EQUATION & WORK
ANGLE MEASURES
A
B
-(7x-2)°
(4x)
(3x)°
(5x − 10)
C
(5x – 2)
(18x)
E
3.
G
4.
H
(16x)°
LL
2A=
2B=
ZE=
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