Stephen bought a car for $12 400 on the following terms: 15% deposit, 18% annual interest, repayments made monthly for 2 years (a) How much was the deposit?
(b) What was the balance owing after payment of the deposit?
(c) How much interest was charged on the balance?
(d) What was the total amount of Stephen’s repayments over the 2 years?

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

86

step-by-step explanation:

find the area of the triangle then multiply by 2 then add the area of the parollelegram multiplied by 2

18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²