Answer:
(-3+) /2, (3+) / 2 which is approx -3.791 and 0.791
Step-by-step explanation:
i used the quadratic formula: [-b± sq rt (b² - 4ac) / 2a]
in this problem, a = 1, b = 3, and c = -3
<span>1.5x-6.5
Substitue 9 for x
1.5(9) - 6.5
Multiply 1.5 by 9
13.5 - 6.5
Subtract
Final Answer: 7</span>
7b+12=5b
Subtraction property of equality
7b + 12 - 12 = 5b - 12
Simplifying
7b = 5b - 12
Subtraction property of equality
7b - 5b = 5b - 12 - 5b
Simplifying
2b = -12
Division property of equality
2b/2 = -12/2
Simplifying
b = -6
Answer:
(a) Ginny made a mistake in step 1 when she identified b = 31. It should be b=–31.
Step-by-step explanation:
The value of b is the coefficient of x. In the given quadratic expression, the coefficient of x is -31, so Ginny should have started with b = -31 in step 1.