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3 years ago

Helpppppp Pleaseee :)

Mathematics

2 answers:

PSYCHO15rus [73]3 years ago

8 0

N= 5 or -5

the absolute value is the count away from 0 so n could be 5 which is 5 units from 0 or -5 which is also 5 units away from 0.

Anika [276]3 years ago

3 0

Answer: 5 only (?).

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If there are 9 shirts and 8 pants, how many possible outfits

Elena L [17]

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Uhh Like 50 different outfits using the same paints and shirts just put differently

Step-by-step explanation:

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2 years ago

The perimeter of the rectangle is 28 units. <br> What is the value of w?

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Step-by-step explanation:

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3 years ago

Vallues of 3×-2×²=7

mrs_skeptik [129]

Answer:

Step-by-step explanation:

"Find the values of x that satisfy 3x - 2x^2 = 7." Please do not use " × " to represent a variable; " × " is an operator, the "multiply" operator.

Rearrange these three terms in descending order by powers of x:

-2x^2 + 3x - 7 = 0. Here the coefficients are a = -2, b = 3 and c = -7, and so the discriminant of this quadratic is b^2-4ac, or 9 - 4(-2)(-7), or 9 - 56, or -47.

Because the discriminant is negative, we'll have two different complex roots here. The quadratic formula becomes

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x = ----------------- = -------------------

2(-2) -4

6 0

3 years ago

The orice of a computer was decreasd by 10% to £504. What was the price before the decrease

liberstina [14]

Answer:

554

Step-by-step explanation:

add 504 plus 10% and you get 554.

3 0

3 years ago

CarcuratOS 11.A credit card charges an annual rate of 18% compounded monthly. This month's bill is Rs. 35,000... Suppose that yo

ZanzabumX [31]

Answer:

FIRST QUESTION

It will pay the bill after 7.45 = rounding 8 months, being the last payment less than 5,000

The total interest for the period will be 2,263.04

SECOND QUESTION The rate will be 6%

Step-by-step explanation:

for the first part, we should calculate the time it takes to an ordinary annuity of 5,000 to have a present value of 35,000 at discount rate of 18%

$C \times \frac{1-(1+r)^{-time} }{rate} = PV\\$

C 5,000

time n

rate 0.015

PV $35,000.0000

$5000 \times \frac{1-(1+0.015)^{-n} }{0.015} = 35000\\$

We work out the formula:

$(1+0.015)^{-n}= 1-\frac{35000\times0.015}{5000}$

We solve the right side of th formula

and then apply logarithmics properties:

$-n= \frac{log0.895}{log(1+0.015)$

-n = -7.450765527

n = 7.45

It will pay the bill after 8 months.

Total Interest: we will build the loan schedule:

Bill Interest Cuota&Amortization

1 35000 525& 5000 4475

2 30525 457.88 5000 4542.12

3 25982.88 389.74 5000 4610.26

4 21372.62 320.59 5000 4679.41

5 16693.21 250.4 5000 4749.6

6 11943.61 179.15 5000 4820.85

7 7122.76 106.84 5000 4893.16

8 2229.6 33.44 2263.04 2229.6

Total 2263.04 37263.04 35000

The total interest for the period will be 2,263.04

<u>Second question </u>we will solve for the rate at which a capital of 3,000 returns 5,372.54 after 10 years

$Principal \: (1+ r)^{time} = Amount$

Principal 30,00.00

Amount = 5,372.54

time 10.00

rate ?

$3,000 \: (1+ r)^{10} = 5,372.54$

$r = \sqrt[10]{5,372.54/3,000} - 1$

r = 0.059999939 = 0.06 = 6%

4 0

3 years ago