Answer:
17x² - 22x - 2
Step-by-step explanation:
Given
(5x² + 6x - 2) + 4x(3x - 7) ← distribute parenthesis
= 5x² + 6x - 2 + 12x² - 28x ← collect like terms
= 17x² - 22x - 2
Answer:
5
Step-by-step explanation:
1.25+2+1.75=5
Hope this helps
The answer is D, I am pretty sure because of estimation.
Answer:
in 2 years the savings account will show: $324.48
in 3 years the savings account will show: $337.46
so the interest earned in these three years would be $337.46 - $300 = $37.46
Step-by-step explanation:
The equation for interest rate compounded annually is what describes this investment, since: where A is the accrued value (total value of principal plus accumulated interest) in the account after the first year ($312), P the principal ($300 in our case), and r the interest rate in decimal form (0.04), and t is the time in years (one for the fist year). They perfectly satisfy the equation:
Then, we can apply this equation for years 2 and 3, just changing the value of t to 2 and 3, as shown below:
We can round the last value to two decimals (cents) obtaining: $337.46
The pure interest after the three years is therefore the total at that time minus the principal the account was started with ($300): $337.46 - $300 = $37.46
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