The sign of the product of -21 and 451 is going to be negative. That is because of the rule when you are multiplying a positive number times a negative number. A positive number times a negative number will always be negative. Here are some helpful rules to know:
positive * positive = positive
negative * positive = negative
negative * negative = positive (the negatives cancel each other out)
Since this question has numbers that fit the second case, the answer will be negative.
on a horizontal number line . numbers to the left are less than numbers to the right .. numbers to the right are less than numbers to the left
That’s a good savings plan
4e^(2x) - 3 = 12
4e^(2x) = 15
e^(2x) = 15/4
taking logs
2x = ln (15/4)
x = ln(15/4) / 2
x = 0.66 to nearest hundredth