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
lesya692 [45]
3 years ago
12

To find the area of a rectangle you multiply the rectangle's

Mathematics
1 answer:
NARA [144]3 years ago
8 0

Answer:

Step-by-step explanation:

Area of rectangle = length * width

                             = 9 * (2x + 3)

                            = 9*2x + 9*3

                            =  18x + 27 square units

You might be interested in
25 POINTS!! PRE-ALGEBRA MATH! PLEASE HURRY! I WILL GIVE BRAINLIEST!
yan [13]

Answer: We are using a line regression tool to solve the parameters asked in the problem. We can use online tools or that of Excel. According to the tool, the best fit values are

Slope0.3848 ± 0.03956

Y-intercept0.6053 ± 0.6370

X-intercept-1.573

1/Slope2.598

Step-by-step explanation: Best fit lines make sure that the standard deviation at each point is minimum from the best fit line.

3 0
3 years ago
Read 2 more answers
Cindy's age, x, is 3 times her age 6 years ago.
Ugo [173]

The algebraic expression for the statement Cindy's age, x, is 3 times her age 6 years ago is 3(x-6).

The given statement is Cindy's age, x, is 3 times her age 6 years ago.

We need to represent the given statement as the algebraic expression.

<h3>What is an algebraic expression?</h3>

In mathematics, an algebraic expression is an expression built up from integer constants, variables, and algebraic operations.

6 years ago Cindy's age(x) is x-6.

3 times Cindy's age=3(x-6)

Therefore, the algebraic expression for the statement Cindy's age, x, is 3 times her age 6 years ago is 3(x-6).

To learn more about the algebraic expression visit:

brainly.com/question/953809.

#SPJ1

3 0
1 year ago
How do I solve this ?
boyakko [2]
(1,-2) im pretty sure is the answer
8 0
3 years ago
Read 2 more answers
Find an n^th degree polynomial with real coefficients satisfying the given conditions. n = 3; -2 and 2 i are zeros; f(-1) = 15.
Ira Lisetskai [31]
So, n = 3, is a 3rd degree polynomial, roots are -2 and 2i

well 2i is a complex root, or imaginary, and complex root never come all by their lonesome, their sister is always with them, the conjugate, so if 0+2i is there, 0-2i is there too

so, the roots are -2, 2i, -2i

now... \bf \begin{cases}&#10;x=-2\implies x+2=0\implies &(x+2)=0\\&#10;x=2i\implies x-2i=0\implies &(x-2i)=0\\&#10;x=-2i\implies x+2i=0\implies &(x+2i)=0&#10;\end{cases}&#10;\\\\\\&#10;(x+2)\underline{(x-2i)(x+2i)}=0\\\\&#10;-----------------------------\\\\&#10;\textit{difference of squares}&#10;\\ \quad \\&#10;(a-b)(a+b) = a^2-b^2\qquad \qquad &#10;a^2-b^2 = (a-b)(a+b)\\\\&#10;-----------------------------\\\\&#10;(x+2)[x^2-(2i)^2]=0\implies (x+2)[x^2-(2^2i^2)]=0&#10;\\\\\\&#10;(x+2)[x^2-(4\cdot -1)]=0\implies (x+2)(x^2+4)=0&#10;\\\\\\&#10;x^3+2x^2+4x+8=0

now, if we check f(-1), we end up with 5, not 15
hmmm

so, how to turn our 5 to 15? well, 3*5, thus

\bf 3(x^3+2x^2+4x+8)=f(x)\implies 3(5)=f(-1)\implies 15=f(-1)

usually, when we get the roots, or zeros, if any common factor that is a constant is about, they get in a division with 0 and get tossed, and aren't part of the roots, thus, we can simply add one, in this case, the common factor of 3, to make the 5 turn to 15
6 0
3 years ago
Calculate the perimeter and the area of the figure.<br><br>top answer gets brainlest
Simora [160]

Answer:

area: 72    perimeter: 36

Step-by-step explanation:

area of big rectangle, 10x6=60  

height of triangle:4 multiplied by 3 (6/2=3) =12   12+60=72

length of sides added together: 10+10+6+5+5=36

7 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for t. h(t) = -16t^2 + 150t +70
    6·1 answer
  • Please help
    9·1 answer
  • Quadrilateral ABCD has the following vertices: A(-4, -3), B(2, -3), C(4, -6), and D(-4, -6). Quadrilateral ABCD is a
    10·2 answers
  • Can someone help me on 10 and 11 please
    10·1 answer
  • 3/2 - (1/2) WHAT DOES IT EQUAL IM A LITTERAL IDIOT with steps please
    13·1 answer
  • The larger cube’s volume is about blank cm
    7·1 answer
  • A man takes a 375-mile trip to Miami. His large car gets 18 miles per gallon, and his small car gets 32 miles
    5·1 answer
  • A crew of highway workers paved 2/15 mile in 20 min​
    10·1 answer
  • A racecar driver completes a race 30 laps in 15 minutes at a constant speed. what is the driver's speed?
    15·1 answer
  • Factor each polynomial: 9x-6
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!