3 years ago

9 * 35

Mathematics

1 answer:

emmasim [6.3K]3 years ago

5 0

Answer:

9 * 35 = 315

8 * 28 = 224

112 * 6 = 672

85 * 8 = 680

4 * 122 = 488

12 * 64 = 768

Step-by-step explanation:

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Compound interest of $1000 is invested at 10% compounded continuously, the future value s at any time t in years is given by s=1

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Step-by-step explanation:

Given

Rate of interest is $r=10\%$

Future value is given by $s=1000e^{0.1t}$

For the investment to double itself, i.e. $s=2000$

$\Rightarrow 2000=1000e^{0.1t}\\\Rightarrow 2=e^{0.1t}\\\\\text{Taking log both sides}\\\\\Rightarrow \ln 2=0.1t\\\\\Rightarrow t=\dfrac{\ln 2}{0.1}\\\\\Rightarrow t=6.93\ \text{years}$

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<h3><u>Answer:</u></h3>

Option: D

Horizontal stretching.

<h3><u>Step-by-step explanation:</u></h3>

We have to find the effect on the graph of the function f(x)=2x when it is replaced by f(0.5 x).

We know that when a parent function f(x) is replaced by f(kx) then either the graph is stretched horizontally or shrinked horizontally.

if k>1 then the graph is shrinked horizontally.

if k<1 then the graph is stretched horizontally.

Hence here k=0.5<1 so the graph of the function is stretched horizontally.

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John runs 4 miles in 30 minutes. at the same rate, how many miles would he run in 48 minutes?

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