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3 years ago

How much would it cost him in interest over 5 months if he used card A to make the purchase?

Mathematics

1 answer:

Kamila [148]3 years ago

4 0

Answer:

I need a little bit more detail in the question to answer.

Step-by-step explanation:

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If 3.N=1,then N is the

rosijanka [135]

3 * N = 1

The multiplicative inverse is just the reciprocal of the number. The reciprocal is just " flipping " the number. So the reciprocal of 3 (or 3/1) is 1/3. And any time u multiply a number by its multiplicative inverse (reciprocal), the result is 1

3 * 1/3 = 3/3 = 1.....so N is ur multiplicative inverse

6 0

3 years ago

Read 2 more answers

Why is the answer to this integral's denominator have 1+pi^2

ss7ja [257]

It comes from integrating by parts twice. Let

$I = \displaystyle \int e^n \sin(\pi n) \, dn$

Recall the IBP formula,

$\displaystyle \int u \, dv = uv - \int v \, du$

Let

$u = \sin(\pi n) \implies du = \pi \cos(\pi n) \, dn$

$dv = e^n \, dn \implies v = e^n$

Then

$\displaystyle I = e^n \sin(\pi n) - \pi \int e^n \cos(\pi n) \, dn$

Apply IBP once more, with

$u = \cos(\pi n) \implies du = -\pi \sin(\pi n) \, dn$

$dv = e^n \, dn \implies v = e^n$

Notice that the ∫ v du term contains the original integral, so that

$\displaystyle I = e^n \sin(\pi n) - \pi \left(e^n \cos(\pi n) + \pi \int e^n \sin(\pi n) \, dn\right)$

$\displaystyle I = \left(\sin(\pi n) - \pi \cos(\pi n)\right) e^n - \pi^2 I$

$\displaystyle (1 + \pi^2) I = \left(\sin(\pi n) - \pi \cos(\pi n)\right) e^n$

$\implies \displaystyle I = \frac{\left(\sin(\pi n) - \pi \cos(\pi n)\right) e^n}{1+\pi^2} + C$

6 0

2 years ago

10 A three-dimensional letterH is formed by joining two identical cuboids and a cube.

hoa [83]

Answer:

10= 275

-------------

11=

a 6

b 4

-------------

12= 35

Step-by-step explanation:

7 0

3 years ago

If 8 apples cost $1.60, how much is one apple? Question 2 options: 10 cents 15 cents 20 cents 25 cents Save

shepuryov [24]

The correct answer is C) 20 cents.
I got that answer by: 1.60/8=0.20
Hope this helps! =)

4 0

3 years ago

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Sam has purchased a $30,000 car for his business. The car depreciates 30% every year. What is the explicit formula for this sequ

Step2247 [10]

If your just figuring out how much the car depreciated just by driving off the lot new...1st year.
$30,000×.30=$9,000

$30,000- $9,000=$21,000.

just take the brand new value of the car multiplied by the .30% of the 1st depreciation...take that answer ($9,000) and subtract it from your orginal value of $31,000.

which gives you $21,000

8 0

3 years ago

Read 2 more answers