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andrezito [222]

1 year ago

6

Solve the given equations. PLEASE show your work. Choose if the equation has infinite many solutions or no solution. It can have

a solution
-2(x + 4) + 9x = 4 - 7x

1 answer:

nadezda [96]1 year ago

4 0

The answer is x=6/7.

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Factor completely. x2+4x−21

BartSMP [9]

X2 + 4x - 21

Answer: (x + 7)(x - 3)

4 0

2 years ago

Fill in the blank to make the statement true.

Igoryamba

Answer: x= 385/12

Step-by-step explanation:

You would first change the denominator to some number that is common. Then combine the like terms. Lastly, subtract the fraction from the equal and you get your x.

$\frac{13}{4} +\frac{1}{6} +x=\frac{71}{2} \\(\frac{39}{12})+(\frac{2}{12})+x=\frac{426}{12} \\\frac{41}{12}+x=\frac{426}{12} \\x=\frac{385}{12}$

6 0

1 year ago

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9 gal/s=_____qt/min

HACTEHA [7]

So 9 Gallons a second is 2160 Quarts a minute

7 0

2 years ago

A "principal square root" is always...

vladimir1956 [14]

Really none of the above.

A principal square root of a real number is a positive real number (or a positive real number times i, if you're up to complex numbers, but let's assume not.) It's not necessarily a positive integer, √2 being the obvious example.

Is √2 a positive fraction? We can write it as √2 / 1 so I suppose it is. It's certainly not a rational number. Even if we grant irrationals as fractions surely √0=0 isn't a positive fraction. So "always" isn't correct.

I'd go with none of the above, but if I had to choose I'd choose D.

3 0

2 years ago

39.6 x 5.20 show your work traditional method

fgiga [73]

Answer:

We have to multiply

⇒39.6 x 5.20 [ Using traditional method]

Traditional method: used by humans when they learnt counting and when fraction came into existence.Suppose something(Area of a field) is divided into parts and another thing(Amount of water used in irrigating the field) is divided into parts and then we have to multiply these two numbers.

3 0

2 years ago