-4x² <span>- 3x + 7 = 0
D = b</span>² -4ac = (-3)² - 4*(-4)*7 = 9 + 112 = 121
D>0 ⇒ <span>Two real solutions </span>
Is the question what is 75% of 12? If it is, 75% of 12 is 9.
Explanation:
Hello! For this question, we are looking for the percent of change. The formula for percent of change is change/original = x/100, where change is tge difference between two numbers, and the original is the previous number. 136,500 - 130,000 is 6,500. The original number is 130,000. It would be set up like this:
6,500/130,000 = x/100
Let's cross multiply the values. 6,500 * 100 is 650,000. 130,000 * x is 130,000x. That makes 650,000 = 130,000x. Now, divide each side by 130,000 to isolate the x. 130,000x/130,000 cancels out. 650,000/130,000 is 5. There. x = 5% increase. The answer is A: 5%.
We are given that:
vi, initial velocity = 24 m/s
v, final velocity = 15 m/s
t, time = 12 s
The formula for acceleration is:
a = (v – vi) / t
a = (15 – 24) / 12
<span>a = - 0.75 m/s^2 (deceleration)</span>
Answer:
ok i wont put random letters
Step-by-step explanation:
