Answer:
x = 
Step-by-step explanation:
Given
- 
= 
← factor denominator
- = 
[ x ≠ 0, x ≠ - 1 as these would make the terms undefined ]
Multiply through by x(x + 1)
4x² - 5(x + 1) = 4
4x² - 5x - 4 = 4 ( subtract 4 from both sides )
4x² - 5x - 9 = 0 ← in standard form
(x + 1)(4x - 9) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 1 = 0 ⇒ x = - 1
4x - 9 = 0 ⇒ 4x = 9 ⇒ x =
However, x ≠ - 1 for reason given above, then
solution is x =
Answer:
A
Step-by-step explanation:
I did it on a test too
Answer:
Arc EC = 58°
Step-by-step explanation:
First, find the value of x.
m<D = ½(arc EC) => Inscribed Angles Theorem
Substitute
2x - 5 = ½(5x - 27)
Multiply both sides by 2
2(2x - 5) = 5x - 27
4x - 10 = 5x - 27
Collect like terms
4x - 5x = 10 - 27
-x = -17
Divide both sides by -1
x = 17
Find arc EC:
Arc EC = 5x - 27
Plug in the value of x
Arc EC = 5(17) - 27 = 85 - 27
Arc EC = 58°
Answer:
good
Step-by-step explanation:
thx for the points :)
Answer:
The diagonal length of a diskette is 
Step-by-step explanation:
Given:
sides = 5 inches
To Find:
diagonal length of a diskette = ?
Solution:
The diskette is in the shape of square
So the diagonal of square = 
where s is the side of the square
On substituting the square value
The diagonal of diskette = 
The diagonal of diskette = 
![[\because 5 = \sqrt{5} \cdot \sqrt{5} ]](https://tex.z-dn.net/?f=%5B%5Cbecause%205%20%3D%20%5Csqrt%7B5%7D%20%20%5Ccdot%20%5Csqrt%7B5%7D%20%5D)
The diagonal of diskette =
