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3 years ago

What does 5x squared minus 2x squared equal to?

Mathematics

2 answers:

Scilla [17]3 years ago

8 0

Answer:

3x^2

Step-by-step explanation:

5x^2-2x^2= 3x^2

because they are like terms you are able to combine like terms

djverab [1.8K]3 years ago

3 0

Answer:

3121x

Step-by-step explanation:

The first step is to simplify...

5x5x5x5x5=3125x

2x2=4x

3125-4=3121x

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which is the rationalized form of the expression the square root of x divided by the square root of x +the square root of 7

Ilya [14]

Answer:

I assume your goal is to rationalize the denominator -

So you need to multiply the denominator by its conjugate.

So we have:

$\frac{\sqrt{x} }{\sqrt{x}-\sqrt{7} } *\frac{\sqrt{x} +\sqrt{7} }{\sqrt{x} +\sqrt{7}}$

$\frac{x-\sqrt{7}\sqrt{x} }{x-7}$

8 0

3 years ago

What is the slope of the line whose equation is -3x y=12?

stepan [7]

-3x+y=12
y=3x + 12
slope=3

8 0

2 years ago

4. Marcella has 4 fewer male cousins than female cousins. Let f represent the number of female cousins. Write an expression for

sladkih [1.3K]

F - 4 = number of boy cousins.

4 0

3 years ago

Assume the rate of inflation is 5% per year for the next 2 years. What will be the cost of goods 2 years from now, adjusted fo

kirza4 [7]

The equation for inflation is
A = P*(1+r)^t
which is an exponential growth equation (if r > 0). If r < 0, then we have deflation.

where...
A = final price after t years
P = initial starting price
r = rate of inflation in decimal form
t = number of years

In this case,
A = unknown (we're solving for this)
P = 280 is the starting price
r = 0.05 is the decimal form of 5%
t = 2 years

We will plug these three pieces of info into the formula to get...
A = P*(1+r)^t
A = 280*(1+0.05)^2
A = 280*(1.05)^2
A = 280*(1.1025)
A = 308.70

Answer: 308.70 dollars

7 0

3 years ago

Is 0.032 a terminating decimal

svp [43]

I don’t think it is, sorry I’m not 100% sure, good luck though

3 0

3 years ago