1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lera25 [3.4K]
3 years ago
13

The side of a square measures (3x − 6) units. Part A: What is the expression that represents the area of the square? Show your w

ork to receive full credit. (4 points)
Part B: What are the degree and classification of the expression obtained in Part A? (3 points)

Part C: How does Part A demonstrate the closure property for polynomials? (3 points)
Mathematics
1 answer:
liubo4ka [24]3 years ago
4 0

A. The area of a square is given as:

A = s^2

Where s is a measure of a side of a square. s = (2 x – 5) therefore,

A = (2 x – 5)^2                  

Expanding,

A = 4 x^2 – 20 x + 25

 

B. The degree of a polynomial is the highest exponent of the variable x, in this case 2. Therefore the expression obtained in part A is of 2nd degree.

Furthermore, polynomials are classified according to the number of terms in the expression. There are 3 terms in the expression therefore it is classified as a trinomial.

 

<span>C. The closure property demonstrates that during multiplication or division, the coefficients and power of the variables are affected while during multiplication or division, only the coefficients are affected while the power remain the same.</span>

You might be interested in
Classify 8x^3+32x^2+x+4.......
liq [111]

Answer:

(x+4)( 8x^{2}+1)

Step-by-step explanation:

:)

4 0
1 year ago
How long would it take me to earn$139.50 of interest at a 6% interest rate if I started with$930.00
Triss [41]
6% of 930 is 55.8

139.50 / 55.8 = 2.5

I will take two and a half years
8 0
3 years ago
What is the area, in square centimeters, of the trapezoid below?<br> 8.5 cm<br> 7.5 cm<br> 15.7 cm
Contact [7]

Answer:

90.75 cm^2

Step-by-step explanation:

The area of a trapezoid is given by

A = 1/2 ( b1+b2) *h

where b1 and b2 are the lengths of the bases and h is the height

A = 1/2(8.5+ 15.7) * 7.5

1/2 (24.2) 7.5

90.75 cm^2

6 0
2 years ago
What is the missing value , 2/3 and n/12
gavmur [86]
N=8
If you set 2/3 equal to n/12 then you multiple 3 by 4 to get 12. So you have to multiple 2 by 4 to get N.
8 0
3 years ago
What is the measure of x?
UkoKoshka [18]

Answer:

x=4

Step-by-step explanation:

(whole secant) x (external part) = (tangent)^2

(x+5) *x = 6^2

x^2 +5x = 36

Subtract 36 from each side

x^2 +5x - 36 = 0

Factor

( x-4) (x+9) = 0

Using the zero product property

x-4 = 0  x+9 =0

x = 4  x=-9

Cannot be negative since that is negative length

x=4

7 0
3 years ago
Other questions:
  • HLP ! HLP ! HLP ! Last one
    13·1 answer
  • Why must trapezoids be congruent
    6·1 answer
  • Type your answer in decimal form. Do not round.<br><br> 26,400 feet = <br> how many miles
    11·2 answers
  • What is the length of the transverse axis? (x-2)^2/36 - (y+1)^2/64=1
    5·2 answers
  • Measure the angle and classify it as right, acute, or obtuse.Question 1 options:
    11·1 answer
  • Solve each system by substitution.
    6·1 answer
  • (x - 1)/(n - 1) + (2n ^ 2 * (1 - x))/(n ^ 4 - 1) = (2x - 1)/(1 - n ^ 4) - (1 - x)/(1 + n)
    9·1 answer
  • (50 x 40 / 4 + 20) + (50 / 2 + 25) =
    14·1 answer
  • Find the circumference r = 5 cm c [?] cm c=d
    5·1 answer
  • 20 points !!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!