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d1i1m1o1n [39]
3 years ago
15

he radius of a circular oil slick expands at a rate of 8 m/min. (a) How fast is the area of the oil slick increasing when the ra

dius is 26 m?
Mathematics
1 answer:
Sloan [31]3 years ago
3 0
If it's expanding 8m per minute, then you have to multiply 8 by 26.

1 minute = 8 m
2 minutes = 16 m
5 minutes = 40 m
10 minutes = 80 m
26 minutes = 208

8 * 26 = 208

So when it reaches 26 m in length, it'll be expanding 208m per minute.
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solmaris [256]
You left out the 9 in the whole equation. The 1st step you had right you just forgot to put +9. 2nd step you are combining the like terms and get 11-26x=-34x+40. Step 3: you are trying to isolate the x on one of the sides. You need to switch the 11 over to the 40 and get 29. Move -34x over to -26x and get 8x. Step 4 all you are doing in dividing 8 from both sides and get 5.
4 0
3 years ago
Please help solve <br><br> -2x - 4 - 7 = - 3x - 15
valentina_108 [34]

Answer:

x = -4

Step-by-step explanation:

-2x-11=-3x-15

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8 0
2 years ago
The standard diameter of a penny is 0.75 in. and the standard
Blababa [14]

Answer: .045

Step-by-step explanation:.75=.750 so, 750-705=.045

Hope this helps!

6 0
3 years ago
A school has two computer labs Each lap has 30 computers a total of six computers in the school or not working which expression
Eddi Din [679]

Answer:

Step-by-step explanation:

A school has two computer labs and each lan has 30 computers. This means that the total number of computers is the sum of the number of computers in each lab

Total number of computers = 30+30 = 60

A total of six computers in the school or not working.

The expression that can be used to find the number of working computers in the school will be

Let the number of computers that are working be x

the number of computers that are working is total number of computers minus the number of computers that are not working be

The expression that can be used to find the number of working computers in the school will be

x = 60 - 6

x = 54

6 0
2 years ago
define square or at least describe what makes a square a square. Refer back to prior lessons as necessary.​
nordsb [41]

Answer:

All four sides are congruent and all four angles are 90 degrees

Step-by-step explanation:

3 0
3 years ago
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