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2 years ago

What do I do with the x squared

Mathematics

1 answer:

Alexxandr [17]2 years ago

4 0

first, find the square root of 45. and make x normal. a square root cancels out a square. It should be 6.7x

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I need this answered in ONE minute

Helen [10]

Answer:

$x^4 + 4x^3 + 6x^2 + 7x + 2$

Step-by-step explanation:

We are asked to multiply the given polynomials.

$(x^ 2 + 3x + 1) \times (x^2 + x + 2)$

Multiply each term of the first polynomial to each term of the second polynomial.

$x^ 2 \times (x^2 + x + 2) = x^4 + x^3 + 2x^2$

$3x \times (x^2 + x + 2) = 3x^3 + 3x^2 + 6x$

$1 \times (x^2 + x + 2) = x^2 + x + 2$

Add the results

$(x^4 + x^3 + 2x^2) + (3x^3 + 3x^2 + 6x) + ( x^2 + x + 2)$

Combine the like terms

$x^4 + 4x^3 + 6x^2 + 7x + 2$

The answer is written in descending powers of x.

7 0

2 years ago

Glenn spends 105 minutes exercising every day. He spends 3 fifths of the time running. How much time dose Glenn spend running?

lozanna [386]

Answer: 63 mins

Step-by-step explanation:

$105(\frac{3}{5})=63$

7 0

3 years ago

A chemist wants to mix a solution of 20% chlorine with a solution of 60% chlorine to make 120 liters of 30% solution of chlorine

Mama L [17]

Answer:

90 and 30 liters

Step-by-step explanation:

1) if solution of 20% is 'x' and of 60% is 'y' liters, then

2) the pure chlorine is: for solution of 20% - 0.2x, for solution of 60% - 0.6y and

3) the mix of the two solutions is 120=x+y.

4) using these items it is possible to make up the system of two equations:

$\left \{ {{x+y=120} \atop {0.2x+0.6y=0.3(x+y)}} \right.$

5) finally, x=90 liters of 20%; y=30 liters of 60% solution.

8 0

2 years ago

Okay will award brainliest and put alot of points so pls help I'm desparate!!!

Bad White [126]

Answer:

23 is 31/100

Step-by-step explanation:

not sure about the rest sorry :(

7 0

3 years ago

Read 2 more answers

In a study of 300 randomly selected

7nadin3 [17]

I would say A because you would expect that less than half of them are out of state as more then half in the study are in state.

5 0

2 years ago