Pls list the equation options so we can give you an answer
Answer:
cool, hope you have a nice week :)
9514 1404 393
Answer:
7 in
Step-by-step explanation:
For width w in inches, the length is given as 2w+1. The area is the product of length and width, so we have ...
A = LW
105 = (2w +1)w
2w^2 +w -105 = 0
To factor this, we're looking for factors of -210 that have a difference of 1.
-210 = -1(210) = -2(105) = -3(70) = -5(42) = -6(35) = -7(30) = -10(21) = -14(15)
So, the factorization is ...
(2w +15)(w -7) = 0
Solutions are values of w that make the factors zero:
w = -15/2, +7 . . . . . negative dimensions are irrelevant
The width of the rectangle is 7 inches.
False....... “needs 20 characters”
1 )
x² + 2 x - 6 = 0
( x² + 2 x + 1 )- 1 - 6 = 0
( x + 1 )² = 7 /√
x + 1 = +/- √7
x 1 = - 1 + √ 7 ; x 2 = - 1 - √ 7
Answer: D ) Quadratic formula, completing the square or graphing; the coefficient of x² term is 1, but the equation cannot be factored.
2 )
c² - 10 c = 0
c ( c - 10 ) = 0
c = 0; c = 10
Answer: D ) 0, 10
