Answer:
Step-by-step explanation:
Subtract the right side of the given equation to put it into standard form:
4x² +8x -221 = 0
Then the coefficients used in the quadratic formula are ...
When these are filled into the form ...
the result is as shown above.
(x - 5)/4 = (x + 1)/3
3(x - 5) = 4(x + 1)
3x - 15 = 4x + 4
4x - 3x = -15 - 4
x = -19
Answer:
(A, B); (B, C); (C, D); (D, B); (C, A); (A, D)
Step-by-step explanation:
That's all I can mention off the top of my head.
6+6=12
9+9=18
9+9=18
12+18+18= 48cm
Answer:
120
Step-by-step explanation:
80 is 2/3 of Drew's book
80 divided by 2 is 40
divided by 2 to find 1/3 of the book
40 * 3 = 120
3 is the whole
120 is the total amount of pages in the book