Answer:
T=n-1+4/n
n=(n^2-n+4)/T
Step-by-step explanation:
T=n-1+4/n
n=(n^2-n+4)/T
Answer:
A(x) = 2x + 6
Step-by-step explanation:
<u>Step 1: Make an equation</u>
A(x) = 2x + 6
A(7) = 2(7) + 6
A(7) = 14 + 6
A(7) = 20
This shows that the total that Emily had on the gift card was <em>$20</em>
Answer: A(x) = 2x + 6
576
12x 6 =72
576 divided by 72 =8
8 x 12 x 6 =576
The area of a square is equal to s^2 where s is the length of one side.
49=s^2.
Root both sides to isolate the variable.
7=s
Final answer: 7 ft
With that information you can determine how far the park is from the football field.
Call h the height of the triangle, x the distance from the park to the football field and y the distance from the park to the home of Kristen.
Using Pithagora's theorem, ou can state this system of equations:
1) From the complet triangle: x^2 + y^2 = (8 + 2)^2 = 10^2 = 100
2) From the triangle whose hypotenuse is the distance from the park to the football field:
x^2 = 8^2 + h^2
3) From the triangle whose hypotenuse is the distance from the park to the home of Kristen:
y^2 = 2^2 + h^2
To solve the system start by subtracting equation 3) from equation 1) =>
x^2 + y^2 = 100
y^2 = 4 + h^2
---------------------
x^2 = 100 - 4 - h^2
x^2 = 96 - h^2
Now sum this result to equation 2
x^2 = 96 - h^2
x^2 = 64 + h^2
---------------------
2x^2 = 96 + 64
2x^2 = 160
=> x^2 = 80
=> x = 8.94
Answer: 8.94 miles