3 years ago

Please I need help ASAP!!!

Mathematics

1 answer:

algol133 years ago

8 0

Answer:1.1

Step-by-step explanation:

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4/5 rational or irrational

matrenka [14]

Answer: 4/5 IS RATIONAL

Step-by-step explanation: A RATIONAL NUMBER IS A NUMBER THAT CAN BE EXPRESSED AS A FRACTION. IT IS ALREADY A FRACTION SOOOO SÍ POLLO

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3 years ago

How to find the median of 2-2-3-4-4-5-7-7

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Lelu [443]

He downloaded 6 songs. Just do 15 divide 2.5.

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What annual rate of interest is required to triple an investment in 7 years if it were compounded quarterly?

Jobisdone [24]

Answer:

Option C) 16.01%

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=7\ years\\P=\$x\\A=\$3x\\n=4$

substitute in the formula above

$3x=x(1+\frac{r}{4})^{4*7}$

$3=(1+\frac{r}{4})^{28}$

Apply log both sides

elevated both sides to 1/28

$\sqrt[28]{3}=(1+\frac{r}{4})$

Multiply by 4 both sides to remove fraction

$4\sqrt[28]{3}=4+r$

subtract 4 both sides

$r=4\sqrt[28]{3}-4$

$r=0.1601$

convert to percentage

$r=0.1601*100=16.01\%$

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3 years ago