All categories

3 years ago

Solve using distributive property. (3x2-2x+7)(x2+2x) Thank you!

Mathematics

2 answers:

geniusboy [140]3 years ago

6 0

Answer:

$3x^4+4x^3+3x^2+14x$

Step-by-step explanation:

$(3x^2-2x+7)(x^2+2x)$

$3x^4+6x^3-2x^3-4x^2+7x^2+14x$

$=3x^4+4x^3+3x^2+14x$

ss7ja [257]3 years ago

5 0

Answer:

3x^4+4x^3-3x^2+14x

Step-by-step explanation:

(3x^2-2x+7)(x^2+2x)

= 3x^2(x^2+2x)-2x(x^2+2x)+7(x^2+2x)

= 3x^4+4x^3-3x^2+14x

You might be interested in

The perimeter of a rectangle is 30 cm. The width of the rectangle is 7 cm.

kolezko [41]

Answer:

area is 56

Step-by-step explanation:

4 0

3 years ago

A salesperson earns a salary of $700 per month plus 2% of the sales. Which inequality correctly represents the total sales if th

My name is Ann [436]

Answer:

C. $x\geq 55000$

Step-by-step explanation:

Let x be the total monthly sales.

We have been given that a salesperson earns a salary of $700 per month plus 2% of the sales. The salesperson want to have a monthly income of at least $1800.

This means that 700 plus 2% of total monthly sales should be greater than or equal to 1800. We can represent this information in an equation as:

$700+(\frac{2}{100})x\geq 1800$

$700+0.02x\geq 1800$

Let us solve our inequality to find the monthly sales (x).

Subtract 700 from both sides of our inequality.

$700-700+0.02x\geq 1800-700$

$0.02x\geq 1100$

Divide both sides of inequality by 0.02.

$\frac{0.02x}{0.02}\geq \frac{1100}{0.02}$

$x\geq \frac{1100}{0.02}$

$x\geq 55000$

Therefore, the total monthly sales must be greater than or equal to 55,000 and option C is the correct choice.

5 0

3 years ago

Seven less than three times a number is two.

Stells [14]

Answer:

let x be the number

seven less than three times a number ==> 3x - 7

Step-by-step explanation:

6 0

2 years ago

A person has an unknown element with a volume of 16 cubic inches and a weight of 4.13 pounds.

yawa3891 [41]

Answer is A.Zinc
If it not it still Zinc

7 0

2 years ago

What is the range of data?

a_sh-v [17]

Answer:

The range of data is 9

Step-by-step explanation:

We know that

range of data = maximum value of data - minimum value of data

Now, we can find maximum value of data

and minimum value of data

so,

maximum value of data =9

minimum value of data =0

now, we can plug these values

and we get

range of data =9-0

range of data =9

6 0

3 years ago