Well 10^3 is just one followed by 3 zeroes, so 1000 this works with any base of 10. So not just times 4* 1000 and get 4000
Answer:
The amount of money in his paycheck was $ 225.
Step-by-step explanation:
Given that Li put $ 75 into his savings account, and said money was 1/3 of his paycheck, to determine which equation could be used to find the amount of money, p, in dollars, on his paycheck, the following reasoning must be performed mathematical:
75 / (1/3) = P
75 / 0.333 = P
225 = P
Thus, the amount of money in his paycheck was $ 225.
Answer:
8+2X is the expression of eight more than the product of two and a number
If x = 1.5 is the only solution to the equation 4x² - ax + b =0 then
4x² - ax + b = 4(x - 1.5)² |use p² - 2pq + q² = (p - q)²
4x² - ax + b = 4(x² - 2x · 1.5 + 1.5²)
4x² - ax + b = 4(x² - 3x + 2.25)
4x² - ax + b = 4x² - 12x + 9 |subtract 4x² from both sides
-ax + b = -12x + 9
therefore
-a = -12 ⇒ a = 12 and b = 9
