Marcus wants to purchase new computers for his office staff. The bank grants him a single-payment loan of $22,000 for 182 days a
t 7.75% exact interest. What is the maturity value of his loan?
1 answer:
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Make equal to zero
add7 both sides
8m^2+7m-8=0
quadratic fomrula
if you have
ax^2+bx+c=0
x=
8m^2+7m-8=0
a=8
b=7
c=-8
x=
x=
x=
x=
or x=
aprox
x=-1.52902 or 0.654016
add7 both sides
8m^2+7m-8=0
quadratic fomrula
if you have
ax^2+bx+c=0
x=
8m^2+7m-8=0
a=8
b=7
c=-8
x=
x=
x=
x=
aprox
x=-1.52902 or 0.654016
Answer:
The value of x is 7 ⇒ 1st answer
Step-by-step explanation:
* Lets revise a fact in the circle
- The two tangents drawn from a point out side the circle are equal
∵ RSTUV is circumscribed about a circle
∴ Each side of the pentagon is a tangent to the circle
- Look to the attached figure to know how we will solve the problem
- Each tangent divided into two parts
# RS = x + y
∵ RS = 8
∴ x + y = 8 ⇒ (1)
# RV = x + n
∵ RV = 12
∴ x + n = 12 ⇒ (2)
- Subtract (2) from (1)
∴ y - n = -4 ⇒ (3)
# ST = y + z
∵ ST = 12
∴ y + z = 12 ⇒ (4)
# TU = z + m
∵ TU = 15
∴ z + m = 15 ⇒ (5)
- Subtract (5) from (4)
∴ y - m = -3 ⇒ (6)
# UV = m + n
∵ UV = 9
∴ m + n = 9 ⇒ (7)
- Add (6) and (7)
∴ y + n = 6 ⇒ (8)
- Lets solve equation (3) and equation (8) to find y
∵ y - n = -4 ⇒ (3)
∵ y + n = 6 ⇒ (8)
- Add (3) and (8)
∴ 2y = 2 ⇒ divide two sises by 2
∴ y = 1
- Lets substitute the value of y in equation (1)
∵ x + y = 8 ⇒ (1)
∵ y = 1
∴ x + 1 = 8 ⇒ subtract (1) from both sides
∴ x = 7
* The value of x is 7
