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3 years ago

I need help where do I plot the point help asap please

Mathematics

1 answer:

Leno4ka [110]3 years ago

4 0

Answer:

Plot the point at the minimum of the graph.

Step-by-step explanation:

If you keep moving the graph down, pick the point with the lowest y value that is still on the blue.

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If an investment of $3000 grows to $4432.37 in eight years with interest compounded annually , what is the interest rate?

melamori03 [73]

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\to &\$4432.37\\
P=\textit{original amount deposited}\to &\$3000\\
r=rate\to r\%\to \frac{r}{100}\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, thus once}
\end{array}\to &1\\
t=years\to &8
\end{cases}$

$\bf 4432.37=3000\left(1+\frac{r}{1}\right)^{1\cdot 8}\implies \cfrac{4432.37}{3000}=(1+r)^8
\\\\\\
\sqrt[8]{\cfrac{4432.37}{3000}}=1+r\implies \sqrt[8]{\cfrac{4432.37}{3000}}-1=r
\\\\\\
0.0500001086\approx r\qquad\qquad\cfrac{r\%}{100}\approx 0.0500001086
\\\\\\
r\%\approx 100\cdot 0.0500001086\implies r=\stackrel{\%}{5}$

6 0

3 years ago

The sum of two numbers is 31.5. The difference is 5.25. Find the numbers

ANTONII [103]

X+y=31.5
x-y=5.25

add 2 equations
x+y+x-y=31.5+5.25
2x=36.75
x=18.375
y=31.5-18.375=13.125
check : 18.375+13.125=31.5, 18.375-13.125=5.25
so
Answer:
18.375 and 13.125

8 0

3 years ago

Read 2 more answers

5. Three times the width of a certain rectangle exceeds twice its length by two inches. Four times its length is twelve more

damaskus [11]

Answer: A

Step-by-step explanation:

L=Length W=Width

3W=2L+2

4L=2L+2W+12

2L=2W+12

Option A

Hope this helps!! :)

Please let me know if you have any question or need further explanation

4 0

3 years ago

In the coordinate plane, the point A (-2,-1) is translated to the point A (-4,0). Under the same translation, the points B (-4,2

Zolol [24]

Answer:

The coordinates for B' would be (-6,1) and the coordinates for C would be (-8,-6)

Step-by-step explanation:

Point A was translated 2 left and 1 down to point A'

B = (-4,2)

-4 - 2 = -6 and 2 - 1 = 1 so B' would equal (-6,1)

C = (-6,-5)

-4 - 2 = -8 and -5 - 1 = -6 so C' would equal (-8,-6)

3 0

2 years ago

Picking a purple marble from a jar with 15 green and 15 purple marbles.

stepan [7]

Answer:

Then probability is 15/30=1/2

Step-by-step explanation:

8 0

3 years ago