Answer:
Here is a more clearer version of the same question ;
29 1.2. Constructing Direct Proofs 1. Let a, b, and c be real numbers with a 0. The solutions of the quadratic equation ax 2 + bx + c = 0 are given by the quadratic formula, which states that the solutions are xi and x2. where and x2 2a 2a (a) Prove that the sum of the two solutions of the quadratic equation ax2 + bx + c = 0 is equal to -b/a . (b) Prove that the product of the two solutions of the quadratic equation ax2 + bx + c = 0 is equal to c/a.
The proving of both a) and b) has been done
Step-by-step explanation:
The step by step explanation has been given in the attachment below.
Step-by-step explanation:
It would be A because you have add them to find the y number
Answer:
No, she tipped about 18%.
Step-by-step explanation:
How much she tipped:
$25 - $21.18 = $3.82
To find the percentage, you can put this tip over the what she paid for the pizza.
%
She only tipped about 18%
Answer:
y=32.0
Step-by-step explanation:
Use the sine ratio;
Recall the mnemonics SOH-CAH-TOA
Substitute Opposite =9 and Hypotenuse =17
Take sine inverse:
Answer: 450
Step-by-step explanation:
971 = B + (T+71)
971-71 = 2 B
450 = B
