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3 years ago

Pls can someone help me with this, and please explain why?

Mathematics

2 answers:

kolezko [41]3 years ago

5 0

C is the correct answer. It can’t be D because negative can’t be under radical.

Hope this helps!

Luda [366]3 years ago

4 0

Answer:

Step-by-step explanation:

recall the property $a^{1/b}= \sqrt[b]{a}$

if we apply this to this case,

$x^{1/4} = \sqrt[4]{x}$

- $x^{1/4} = - \sqrt[4]{x}$

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3 years ago

Hunter invested $750 in an account paying an interest rate of 6\tfrac{5}{8}6 8 5 % compounded continuously. London invested $7

kompoz [17]

Answer: $ 55

Step-by-step explanation:

When interest is compounded continuously, the final amount will be

$A=Pe^{rt}$

When interest is compounded daily, the final amount will be

$A=P(1+\dfrac{r}{365})^{365t}$

, where P= Principal , r = rate of interest , t = time

For Hunter , P= $750, r = $6\dfrac{5}{8}\%=\dfrac{53}{8}\%=\dfrac{53}{800}=0.06625$

t = 18 years

$A=750e^{0.06625(18)}=\$2471.48$

For London , P= $750, r = $6\dfrac{1}{2}\%=\dfrac{13}{2}\%=\neq \dfrac{13}{200}=0.065$

t = 18 years

$A=750(1+\dfrac{0.065}{365})^{18(365)}=\$2416.24$

Difference = $ 2471.48 - $ 2416.24 =$ 55.24≈$ 55

Hence, Hunter would have $ 55 more than London in his account .

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3 years ago