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3 years ago

12

A bank loans a customer $46,000 for a period of 9 years. The simple interest rate of the loan is 8.9%. What is the total amount

that the customer will need to pay the bank over the 9 years

1 answer:

ryzh [129]3 years ago

5 0

The bank will pay $36,846.

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How to solve number 1?

Archy [21]

$E(x)=5(x-1)(x+2)-(x+2)^2\\\\1)\ 5(x^2+2x-x-2)-(x^2+2x\cdot2+2^2)\\=5(x^2+x-2)-(x^2+4x+4)\\=5x^2+5x-10-x^2-4x-4\\=4x^2+x-14\neq4x^2+x+1\\\\2)\ E(x)=1\ for\ E(x)=4x^2+x+1\\\\4x^2+x+1=1\ \ \ \ |subtract\ 1\ from\ both\ sides\\4x^2+x=0\\x(4x+1)=0\iff x=0\ \vee\ 4x+1=0\\x=0\ \vee\ 4x=-1\\\boxed{x=0\ \vee\ x=-0.25}$

$3)\ H(x)=9x^2-(2x+1)^2\\\\a.\ H(x)=(3x)^2-(2x+1)^2=[3x-(2x+1)](3x+2x+1)\\=(3x-2x-1)(5x+1)=(5x+1)(x-1)\\\\b.\ H(x)=0\\\\(5x+1)(x-1)=0\iff5x+1=0\ \vee\ x-1=0\\5x=-1\ \vee\ x=1\\\boxed{x=-0.2\ \vee\ x=1}$

5 0

3 years ago

According to the chart, from 1986-1996, unintentional drug overdose deaths per 100,000 population began to rise. The numbers for

Vaselesa [24]

Answer:

The mean of these statistic is 2.18.

Step-by-step explanation:

According to the chart, from 1986-1996, unintentional drug overdose deaths per 100,000 population began to rise.

The given data set is

2, 1, 2, 2, 1, 2, 2, 3, 3, 3, 3

Formula for mean:

$Mean=\frac{\sum x}{n}$

Using this formula, the mean of the data is

$Mean=\frac{2+1+2+2+1+2+2+3+3+3+3}{11}$

$Mean=\frac{24}{11}$

$Mean=2.181818$

$Mean\approx 2.18$

Therefore the mean of these statistic is 2.18.

3 0

3 years ago

Read 2 more answers

Which choice is the solution to the inequality below?

lions [1.4K]

Answer:

D

Step-by-step explanation:

Dividing the inequality by 2 to get rid of the coefficient of x we get x < 15.

7 0

3 years ago

Explain in your own words how to solve a one-step equation.

vovangra [49]

Answer:

Solve the problem by taking whats preformed on the variable, inverse it getting the variable by itself.

3 0

3 years ago

A child is laying on the ground relaxing and looking up at a plane that is passing by. If the plane’s altitude is 33,500 feet an

murzikaleks [220]

Answer:

about 76.2°

Step-by-step explanation:

The geometry can be modeled by a right triangle with the given dimensions being the side opposite the angle (height = 33,500 ft) and the side adjacent to the angle (8,200 ft). The fact that you know these two sides suggests the inverse of the tangent function may be useful.

Tan = Opposite/Adjacent

tan(angle) = (33,500/8,200)

angle = arctan (335/82) ≈ 76.246°

The angle of elevation is about 76.2°.

3 0

3 years ago