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3 years ago

HELP ASAP PLEASE!!!

Mathematics

2 answers:

Wewaii [24]3 years ago

7 0

Answer:

Step-by-step explanation:

Whatever answer you think it should be, the answer must exclude 0.

1/x = 1/0 which is undefined.

D is the only possible answer. None of the others make that exclusion. There is one other thing to consider: do any of the others exclude 0.

More importantly, what have you been told about the natural numbers. Some people include 0 in what the natural numbers are. Does your teacher or your instructions?

The whole numbers include 0. Without the restriction (3) is not the answer.

If it does, then that is not an answer. I think that D is the safest answer.

ValentinkaMS [17]3 years ago

4 0

4. All real numbers except x = 0. Correct me if I’m wrong please

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iogann1982 [59]

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3 years ago

Read 2 more answers

John invested N$ 20 000 on 1/06/2009 at 9% p.a. interest compounded monthly

alina1380 [7]

Answer:

a) $49,027.14

b) $54,501.67

Step-by-step explanation:

a) The account balance multiplier for interest rate r compounded n times per year for t years is ...

multiplier = (1 +r/n)^(nt)

For your numbers, r=.09, n=12, t=10, this is 2.45135708, so the account balance after 10 years will be ...

$20,000 × 2.45135708 ≈ $49,027.14

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The multiplier for a continuously compounded interest rate r for t years is ...

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For your numbers, r=.105 and t=6, so the multiplier is e^.63 ≈ 1.8776106 and the account balance for an investment of $29,027.14 will be ...

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3 years ago

Item 19 You pay $40 each month for satellite TV, plus $3.50 for every movie you purchase. Write and solve an equation to find th

Marianna [84]

Let x be the number of movies purchased. If each movie you purchase costs $3.50 dollars, this means that the total cost of x movies in one month is $3.50x
In addition, you have to pay $40 for satellite TV. We can now find an equation to find the total cost per month:
40 + 3.50x

Now, by hypothesis, you paid $57.50 during a month as a total bill.
Which means that 40 + 3.50x = 57.50
We need to find the number of movies purchased during that month, or, in mathematical words, we need to solve for x.

40 + 3.50x = 57.50

First, let's put the variables apart and the numbers apart by subtraction 40 from each side, so we get:
40 - 40 + 3.50x = 57.50 - 40
3.50x = 17.50

Now divide both sides by 3.50
(3.50x)/(3.50) = 17.50 / 3.50
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So, during that month, you purchased 5 movies.

Hope this helps! :)

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4 years ago

Expand and simplify 2(a+3b) - 2(a-5b)

gogolik [260]

Answer: 16b

Step-by-step explanation:

distribute

2a+6b+-2a+10b

combine like terms

2a+6b+-2a+10b

(2a+-2a)+(6b+10b)

16b

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2 years ago

What is the area of a pizza with a

Anna11 [10]

Answer:

15.7 inch^2

Step-by-step explanation:

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Area = 3.142 x 5

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4 years ago