MATHEMATICS MIDDLE SCHOOL

Factor 7x^3+28x^2+21x

Answers

Answer 1
Answer:

The factor of the polynomial 7x³+28x²+21x are 7x, (x + 1), and (x + 3) after factorization.

What is polynomial?

Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.

\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n

We have a polynomial:

= 7x³+28x²+21x

\rm =7x\left(x^2+4x+3\right)

= 7x(x + 1)(x + 3)

Thus, the factor of the polynomial 7x³+28x²+21x are 7x, (x + 1), and (x + 3) after factorization.

Learn more about Polynomial here:

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Answer 2
Answer:

Answer:

7x (x + 1 ) ( x + 3 )

Step-by-step explanation:

7x³ +28x² +21x

7x ( x² + 4x + 3 )

7x [ x² + 1x + 3x + 3 ]

7x [ x ( x + 1 ) + 3 ( x + 1 ) ]

7x (x + 1 ) ( x + 3 )

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Wolfgang's father is 26 years older than Wolfgang. In 10 years, the sum of their ages will be 80. What are their present ages? PLEASE SHOW THE SHOW WORK

Each square on the grid represents 1 mi2. What is the approximate area of this park?







A.


about 35 mi² to 45 mi²


B.


about 55 mi² to 65 mi²


C.


about 75 m² to 85 m²

Answers

Answer:

Option (b) is correct.

The approximate area of this park is about 55 mi² to 65 mi².

Step-by-step explanation:

 Given : A grid with Each square on the grid represents 1 mi². and a park is constructed on it.

We have to determine the approximate area of this park.

We first find the area of grid and then subtract the uncovered square that are not covered  in park area.

Length of square grid is 10 mi and breadth is 8 mi.

So, area of square grid = 10 × 8 = 80 mi²

Number of uncovered squares that are not covered  in park area  = 9  squares

So Area of uncovered squares = 9 mi²

Maximum  area of park is (80 - 9) = 71 mi²

Also, Area of partially covered squares = 21 mi²

So, Minimum area of park is (80-30) = 50 mi²

Since, area of park lies in between 50 to 71

So , from  given options only (b) satisfies the approximate area of this park.

Thus, the approximate area of this park is about 55 mi² to 65 mi².
the answer is B.B.about 55 mi² to 65 mi² inside there are 50 squares plus the small square there is a total area of 59 mi^2

the pumpkin patch is open every day if it sells 2,750 pounds of.pumpkins each day about how many pounds does it sell in 7 days

Answers

if you multiply 2,750 with 7 it will get you the amount 
which is 19250 pounds 
Multiply 2750 by 7 to get 19250. Thus, the pumpkin patch will sell 19,250 pounds of pumpkins in 7 days.

Why will the percent of change always be represented by a positive numberplease make a simple answer Thankyou

Answers

Answer:

Percent of change ill always be in positive number . As when we take a reference point , all the measurements becoke positive.
It will always be positive because distance can never be negative. No matter how far "backwards" you travel from a point, you are still traveling the same distance from that point, regardless of which direction you are traveling in.

The blank of a two dimensional figure can be any side?

Answers

The "Length" of a two-dimensional figure can be any side.

What is the length?

length is the measure of some distance from one end to another end.

The side is a distance between two vertexes joined with another part of the dimension.

We can measure that distance which means it could be a length.

Thus, The blank could be; Length of a two-dimensional figure can be any side.

Learn more about length;

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Answer:

yea

Step-by-step explanation:

Another way of writing 6^2is
A. 6 × 2
B. 6 × 6
C. 6 + 6
D. 2 × 2 × 2 × 2 × 2 × 2

Answers

Another way of writing 6 to the 2nd power would be, B, 6*6 . all it is is just multiplying by it's self however many times the power says to . 
The answer is b, because 6^2 means 6 to the power of 2 and that means 6 times 6

Which expression correctly represents “ten times the difference of a number and six”

Answers

Answer:

Expression will be 10(x - 6).

Step-by-step explanation:

Let the given number is x.

Difference of this number and 6 will be represented by

(x - 6)

Then ten times the difference of this number and 6 will be represented by

10(x - 6)

Therefore, the statement " ten times the difference of a number and six " will be represented  by the expression 10(x - 6)

Answer:

10 * (m * 6)

Step-by-step explanation:

hope thats alright!
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