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3 years ago

60 POINTS!! Please help me out with these 2 questions

Mathematics

1 answer:

arsen [322]3 years ago

4 0

Answer:

1. money in the account = 400 + 6t where t is the number of years

2. Total cost = principal ( 1+ rate* time)

Step-by-step explanation:

1. The formula for simple interest is I = PRT where

P = principal

R is the interest rate

T is the time in years

I = 400 * .015 * t

I = 6t where t is the number of year

The amount of money in the account is the principal plus the interest

money in the account = 400 + 6t

Since we were not given the time period, I will leave it here.

2. Since we are paying simple interest

The formula for simple interest is I = PRT where

P = principal

R is the interest rate

T is the time in years

We can figure out what the total interest is

Add it to the amount of the principal

The total amount you will pay on the loan is

Total cost = Principal + interest

= principal + principal * rate * time

= principal ( 1+ rate* time)

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3 years ago

Read 2 more answers

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Ne4ueva [31]

Answer:

H0 : μd = 0

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Test statistic = 0.6687 ;

Pvalue = 0.7482 ;

Fail to reject H0.

Step-by-step explanation:

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H1 : μd ≠ 0

Given the data:

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After: 16 24 42 80 78 73

Difference = -1 2 24 35 -18 -9

Mean difference, d ; Σd / n

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3 years ago

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$\bf \displaystyle \int\limits_{0}^{28}\ \cfrac{1}{\sqrt[3]{(8+2x)^2}}\cdot dx\impliedby \textit{now, let's do some substitution}\\\\
-------------------------------\\\\
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-------------------------------\\\\$

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\begin{array}{llll}
\textit{now let's change the bounds}\\
\textit{by using } u(x)
\end{array}\\\\
-------------------------------\\\\
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$\bf \\\\
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