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Mathematics

1 answer:

KIM [24]3 years ago

8 0

The other side is 4 feet, and the perimeter it 12 feet

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Sixty percent of students in Mariana's class has a pet. If 12 students have pets, how many students are in the class

Likurg_2 [28]

20 students, because 12 is 60% of 20.

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3 years ago

F(x) = 5x^2 - 8x - 5 what is the value of f(10) ?

Dominik [7]

f '(x) = 2(3x2 + 5) + 6x(2x - 1)= 6x2 + 10 + 12x2 - 6x= 18x2 - 6x + 10

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3 years ago

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Vika [28.1K]

You need to multiply the amount by the tax

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4 years ago

To buy a car, you borrow $25,000 with a term of three years at an APR of 6.5%. What is your monthly

Finger [1]

Answer:

$766.23

Step-by-step explanation:

The amortization formula is appropriate for this. (Better, use a financial calculator or spreadsheet.)

A = P(r/12)/(1 -(1 +r/12)^-(12t))

where P is the amount borrowed (25,000), r is the annual rate (0.065), and t is the number of years (3).

Putting the given numbers into the formula, we have ...

A = $25,000(0.065/12)/(1 -(1 +0.065/12)^(-36))

A = $25,000(.00541667)/(1 -1.00541667^-36)

A = $25,000(0.00541667)/(0.1767322)

A = $766.23

The monthly payment is $766.23.

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Comment on tools

A graphing or scientific calculator is useful for these. Something like a TI-84, or any of the equivalents, will have financial calculations like this built in. There are also numerous apps available for phone or tablet that will do financial calculations.

4 0

3 years ago

Solve the equation for x.

liq [111]

Answer:

$x=55$