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ASHA 777 [7]
2 years ago
13

If A=3x^2+5x-6 and B= -2x^2-6x=7, then A-B equals

Mathematics
1 answer:
Kryger [21]2 years ago
6 0
Yup ur right les goo
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gary mixes a solution using two types of concentration of sale: .70 gallons of 5% and .30 gallons of 22% salt. what is the conce
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Answer:

10.1%

Step-by-step explanation:

The first thing we should do is calculate the total volume of the solution when mixing them would be:

0.7 + 0.3 = 1

Now, we have that the resulting concentration (x) would be equal to the sum of the multiplications between the volumes and the concentrations to be mixed, as follows:

x * 1 = 0.7 * 0.05 + 0.3 * 0.22

x = 0.035 + 0.066

x = 0.101

That is, the concentration of the resulting mixture would be 10.1% (0.101 * 100)

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3 years ago
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What should n be if f (x) = x^n defines a polynomial function?
Aleks04 [339]

9514 1404 393

Answer:

  a non-negative integer

Step-by-step explanation:

Powers of variables in a polynomial are whole numbers, that is, non-negative integers.

For f(x) to be a polynomial function, the value of n must be a whole number.

3 0
2 years ago
Solve the proportion.<br><br> s+1/4 = 4/8<br> s=
LUCKY_DIMON [66]

Answer:

8 = 16

Step-by-step explanation:

1/4  =  4 /8

 

Cross multiply:

1 * 8 = 4 * 4

Simplifying

1 * 8 = 4 * 4

Multiply 1 * 8

8 = 4 * 4

Multiply 4 * 4

8 = 16

Solving

8 = 16

3 0
3 years ago
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