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3 years ago

Please help!!!!!!!!!!!!!!!

Mathematics

1 answer:

ser-zykov [4K]3 years ago

6 0

Answer:

Step-by-step explanation:

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GUYS PLEASE HELP ME I NEED THIS REALLY SOON AND I'M STRESSED RIGHT NOW

lisov135 [29]

Step-by-step explanation:

I think it would be $70.25

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2 years ago

Find the difference when 6h is subtracted from 2h-4

Andreas93 [3]

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3 years ago

Read 2 more answers

F $1,000 is deposited in a certain bank account and remains in the account along with any accumulated interest, the dollar amoun

Whitepunk [10]

Answer:

(1) The annual interest rate is 10%, that is greater than 8%

(2) The annual interest is bigger than 22.47% and that is greater than 8%

Step-by-step explanation:

We have the equation:

$I=1,000((1+\frac{r}{100} )^{n} -1)$

Where I is the earns in interest, n is the number of years and r is the annual interest rate.

For the first case, we can replace I by $210 and n by 2 as:

$210=1,000((1+\frac{r}{100} )^{2} -1)$

Solving for r, we get:

$\frac{210}{1,000} = (1+\frac{r}{100})^{2} -1$

$0.21 +1 = (1+\frac{r}{100})^{2}$

$1.21 = (1+\frac{r}{100})^{2}$

$\sqrt{1.21} = 1 + \frac{r}{100}$

$\sqrt{1.21} - 1 = \frac{r}{100}$

$(\sqrt{1.21} - 1)100=r$

$10=r$

So, for the first case, the interest rate paid by the bank is 10% and it is greater than 8%

For the second case, we need to take the equation and solve for r as:

$(1+\frac{r}{100} )^{2} >1.5$

$1+\frac{r}{100} > \sqrt{1.5}$

$\frac{r}{100} > \sqrt{1.5}-1$

$r > (\sqrt{1.5}-1)*100$

$r > 22.47$

So, for the second case the rate need to be bigger than 22.47% and that is bigger than 8%

5 0

3 years ago

Please answer for 10 points

Soloha48 [4]

Answer:

1. 4.7

2. 5,082

Step-by-step explanation:

1. To find the volume of a cone you use this formula $V=\pi r^{2} \frac{h}{3}$ . The diameter is 3 so to find the radius, divide it by 2 (3/2=1.5) and we know the height. Input the numbers into the formula and solve $V=\pi (1.5)^{2} \frac{4}{3}$ which is equal to $3\pi$ . To find HALF, divide that answer by 2. $3\pi /2= 4.71239$ , round to the nearest tenth, making the answer 4.7!

2. To find the volume of a rectangular prism you use $V=lwh$ . Input the numbers, $V=(30)(12)(16)$ to find the amount of water for the bigger tank (5,760). Now follow the same process to find the amount of water for the smaller tank $V=(12)(6)(9)$ which is 678. Now subtract the smaller tank amount (678) from the larger tank since you're taking the water from the bigger tank to fill the smaller one which equals 5,082.