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yanalaym [24]
3 years ago
6

17+(-4)-4/5j-2/5j+6​

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
7 0

Answer:

19 - (6/5)j

Step-by-step explanation:

In this expression we have addition, subtraction and multiplication.

According to order of operations rules, mult. and div. must be carried out before add. or subt.

Therefore, we begin with 17+(-4), which becomes 17 - 4, or 13.

Next we see -4/5j, by which I assume you mean -4/5 * j.

Summarizing what we have so far:

13  - (4/5)j - 2/5j + 6

Combining the j terms, we get

13 - (6/5)j + 6, which collapses to 19 - (6/5)j.

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dsp73
\dfrac{x^2+7x+1}{x^2+2x-15}=\dfrac{x^2+7x+1}{(x+5)(x-3)}

which is undefined when x=-5 or x=3. The answer is then the third choice.
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3 years ago
Type the correct answer in the box
algol13

c = cost of food/med for cats

d = cost of food/med for dog

y = total cost/spent

What you know:

y = 6c + d              [has 6 cats and 1 dog]  

c = 2/3d - 5        [cost for cat is 5 less than 2/3 cost for dog]

y = $195

y = 6c + d    

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195 = 4d - 30 + d        Combine like terms

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$45 = d            

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3 years ago
Tanelle is cutting out a paper banner as shown in the image. The entire piece of paper is 8 feet long and she is cutting a circl
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Step-by-step explanation:

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2 years ago
The Cost of 625 bolts is $100.What is the coast of 10 bolts?
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To use an automated teller machine at a certain​ bank, you must enter a 3​-digit ​code, using the digits 1 dash 9. How many 3​-d
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Answer:

729 , 3- digit codes are possible

Step-by-step explanation:

To use an automated teller machine at a certain​ bank, you must enter a 3​-digit ​code, using the digits 1 dash 9.

We need a 3 digit code using digits 1 to 9

so total of 9 digits are used

also repetition of digits are permitted

In a 3 digit code, first digit can be any number from 0 to 9

so 9 possible numbers for first digit.

since repetition is allowed so second and third digit also have any number between 0 to 9

3 digit code

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---9--- ,  ----9--- , ----9----

9 *9 *9 = 729

so 729 , 3- digit codes are possible

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