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lilavasa [31]
2 years ago
8

1. If the interest rate on a savings account is 0.01%, approximately how much money do you need to keep in this account for 1 ye

ar to earn enough interest to cover a single $9.99 Below-Minimum-Balance Fee
Mathematics
1 answer:
solmaris [256]2 years ago
3 0
An interest rate, or rate of interest, is the amount of interest due per period, as a proportion of the amount lent, deposited or borrowed. The total interest on an amount lent or borrowed depends on the principal sum, the interest rate, the compounding frequency, and the length of time over which it is lent, deposited or borrowed.
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The parabolic arch of a bridge over a one-way road can be described by the equation y = -x^2 + 6, where x and y ar emeasured in
Vladimir [108]
So check the picture below

if we check the solutions or zeros for the equation, we get \bf y=-x^2+6\implies 0=-x^2+6\implies x=\pm \sqrt{6}

and as you can see in the picture, the value of "x" when y = 3.5, or the height of the truck is  \bf y=-x^2+6\implies 3.5=-x^2+6\implies x=\pm \sqrt{2.5}

the truck, ends up with a clearance of \bf \sqrt{2.5}-1.5 on either side, so, the maximum clearance, the truck can have, those two clearances added together, \bf 2(\sqrt{2.5}-1.5)

5 0
2 years ago
Slove for x. 12x+7<-11 or 5x-8>40​
Elan Coil [88]

Answer:

x<-3/2, x>48/5

Step-by-step explanation:

12x+7<-11

12x<-18

x<-3/2

5x-8>40

5x>48

x>48/5

Hope this helps!

5 0
2 years ago
The exponential function f(x) = 2(4)x increases more quickly than the linear function f(x) = 3x + 4.
Aleksandr [31]
Is this a true/false or do you need an actual mathematical answer?
i will edit my this to answer your question.
I'm just not exactly sure what you are asking :-/
5 0
3 years ago
Sybil has 1/2 of a pizza left over.She wants to share the pizza with3 friends.What fraction of the original pizza will sybil and
Alex787 [66]

Answer:

1/6

Step-by-step explanation:

They'll both have 1/3 of the half pizza

That means they'll be having 1/6 each of the original pizza.

4 0
2 years ago
Find the absolute extreme of the function on the closed interval. y=9e^xsinx , [0,pi]
Molodets [167]

For convenience sake, I will let y=f(x)=9e^{x}\sin x

First, we evaluate the function at the endpoints of the interval.

f(0)=9e^{0}\sin(0)=0\\\\f(\pi)=9e^{\pi}\sin(\pi)=0

Then, we need to find the critical points.

We can start by taking the derivative using the power rule.

f'(x)=9e^{x} \frac{d}{dx} \sin x+9\sin x \frac{d}{dx} e^{x}=9e^{x}(\cos x+\sin x)

Setting this equal to 0,

9e^x (\cos x+\sin x)=0

Since 9e^x > 0, we can divide both sides by 9e^x.

\cos x+\sin x=0\\\\\sin x=-\cos x\\\\\tan x=-1\\\\x=\frac{3\pi}{4}

f\left(\frac{3\pi}{4} \right)=9e^{3\pi/4}\sin \left(\frac{3\pi}{4} \right)=\frac{9\sqrt{2}e^{3\pi/4}}{2}

So, the absolute minimum is \boxed{\left(\frac{3\pi}{4}, \frac{9\sqrt{2}e^{3\pi/4}}{\sqrt{2}} \right)} and the absolute minima are \boxed{(0,0), (\pi, 0)}

3 0
1 year ago
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