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lions [1.4K]
3 years ago
5

PLEASE HELP!!!!!! What signals you that factoring by grouping is the best method to use when factoring a problem? How would you

know if it is factorable or prime?
Mathematics
1 answer:
ElenaW [278]3 years ago
3 0
Normally when there is similar terms and when you have to figure out if it is factorable or prime you must first begin factoring it and if it does not work it is prime.
Hope this helps, ask me if you have any questions.
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It will take 1 minute because if the 100 cats eat 100 fish and they all get the same amount then the rate should 1 fish per cat per minute.....
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2 years ago
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what is the exact area of a circle with a radius of 12 feet? A. 24π square feet B. 36π square feet C. 121π square feet D. 144π s
Maksim231197 [3]
The answer is D. 144pie square feet

5 0
3 years ago
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If 3a-2b= 8 and a+3b=7 what is the value of 4a+b?
Fittoniya [83]
Step 1: Find the value of one variable in terms of the other.

a+3b=7\\a=7-3b

Step 2: Substitute the value you just found for this variable in the other equation.

3a-2b=8\\3(7-3b)-2b=8\\21-9b-2b=8\\21-11b=8\\21=8+11b\\13=11b\\\frac{13}{11}=b\\ b=1\frac{2}{11}

Step 3: Use your new value for the second variable to find the first.

a+3b=7\\a+3(1\frac{2}{11})=7\\a+3\frac{6}{11}=7\\\\a=3\frac{5}{11}

Now that we know the values for a and b we can find the value of 4a+b.

4a+b\\4(3\frac{5}{11})+1\frac{2}{11}\\12+\frac{20}{11}+1\frac{2}{11}\\\\12+1\frac{9}{11}+1\frac{2}{11}\\\\\boxed{15}
6 0
3 years ago
What is the product of (2x-1) (x+5)?
Sever21 [200]

Answer:

2x^2+9x-5

Step-by-step explanation:

6 0
3 years ago
In a photograph, a stadium measures 7 inches across by 2 inches high. If the actual stadium measures 1000 feet across, which equ
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x/500 = 2/8.

Step-by-step explanation:

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