Answer:
4 (14.14=142=28)
Because 14 in 7 times-table, 142 in 7 times-table and 28 in 7 times-table.
Maybe you should contact your teacher
9514 1404 393
Answer:
- interest: $353.38
- total: $4978.38
Step-by-step explanation:
The equation for calculating the balance in an account earning compound interest is ...
A = P(1 +r)^t
where r is the annual rate and t is the number of years.
For Sam's account, the balance after 2 years is ...
A = $4625(1 +0.0375)^2 = $4978.38
The interest is the amount in excess of the deposited amount:
$4978.38 -4525.00 = $353.38
Sam's interest was $353.38, giving him a total of $4978.38.
Answer: y-intercept = (0, -18)
Step-by-step explanation:
This is a quadratic equation question, where the quadratic equation is in the standard form of [y = ax² + bx + c]
The function of [a] in the equation is to determine the maximum/minimum of the parabola. If [a] is positive, then the parabola opens upward, which is a minimum. If [a] is negative, then the parabola opens downward, which is a maximum.
There aren't any particular functions of [b], but it operates with [a] to find the axis of symmetry.
The function of [c] is the y-intercept. The easiest way to prove this is to let x be zero, then we are left with the value [c]
<u>Solve:</u>
Given: y=-x²+8x-18
a = -1
b = 8
c = -18
Therefore, the y-intercept is (0, -18)
Hope this helps!! :)
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