Answer:
option 2. 0
Step-by-step explanation:
The discriminant is the part under the square root in the quadratic formula, b²-4ac. If it is more than 0, the equation has two real solutions. if it is 0, the equation has one real solutions. if it is less than 0, the equation has zero real solutions.
-b√b²-4ac /2a
This is because the square root of a negative number cannot give a real number, it will always give an imaginary number
Answer:
You would write it as 3 * 10^6
Step-by-step explanation:
To figure this out, look at the decimal place: you got a huge number. 3,000,000. that's the decimal place, right at the far right side. Move the decimal place until you got a number less than 10, so until the number is 3. How ever many times you had to move the decimal place (in this case six times) is the number you put as the power. So the expression is:
3 * 10^6
Answer:
Bill paid about 7% sales tax.
Step-by-step explanation:
First, to find the value of 1%, I divided $449.99 by 100, which gave me 4.4999. I then divided the amount paid for tax by the value of 1%. That;s $35.99 ÷ $4.4999 = 7.199439887977596. Obviously, you can't put that in your math homework, plus the question says "about," so you're going to round. Because the first number after the decimal point is less than five, you round down. Therefore, the sales tax is about 7%.
Answer:
True
Step-by-step explanation:
Just regular greater than or less than (< , >) have dotted lines.
Greater than or equal to and less than or equal to (≤, ≥) have solid lines.
Hope this helped :)