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
ss7ja [257]
3 years ago
15

The area of a rectangle is represented with the expression (18x-12) inches squared. The width of the rectangle is 6 inches. Writ

e an expression that represents the length of the rectangle.
Mathematics
1 answer:
Rudik [331]3 years ago
5 0
Are equation for a rectangle is area = (width x length)

(18x - 12) = 6 x length
length = (18x - 12) / 6
length = 3x - 2
You might be interested in
Given the following three points, find by the hand the quadratic function they represent (0,6, (2,16, (3,33)
Lisa [10]

Answer:

f(x) = 4x^2 - 3x + 6

Step-by-step explanation:

Quadratic function is given as f(x) = ax^2 + bx + c

Let's find a, b and c:

Substituting (0, 6):

6 = a(0)^2 + b(0) + c

6 = 0 + 0 + c

c = 6

Now that we know the value of c, let's derive 2 system of equations we would use to solve for a and b simultaneously as follows.

Substituting (2, 16), and c = 6

f(x) = ax^2 + bx + c

16 = a(2)^2 + b(2) + 6

16 = 4a + 2b + 6

16 - 6 = 4a + 2b + 6 - 6

10 = 4a + 2b

10 = 2(2a + b)

\frac{10}{2} = \frac{2(2a + b)}{2}

5 = 2a + b

2a + b = 5 => (Equation 1)

Substituting (3, 33), and c = 6

f(x) = ax^2 + bx + x

33 = a(3)^2 + b(3) + 6

33 = 9a + 3b + 6

33 - 6 = 9a + 3b + 6 - 6

27 = 9a + 3b

27 = 3(3a + b)

\frac{27}{3} = \frac{3(3a + b)}{3}

9 = 3a + b

3a + b = 9 => (Equation 2)

Subtract equation 1 from equation 2 to solve simultaneously for a and b.

3a + b = 9

2a + b = 5

a = 4

Replace a with 4 in equation 2.

2a + b = 5

2(4) + b = 5

8 + b = 5

8 + b - 8 = 5 - 8

b = -3

The quadratic function that represents the given 3 points would be as follows:

f(x) = ax^2 + bx + c

f(x) = (4)x^2 + (-3)x + 6

f(x) = 4x^2 - 3x + 6

6 0
4 years ago
One angle in a triangle has a measure that is three times as large as the smallest angle. The measure of the third angle is 40 d
svetlana [45]

Answer:

84°

Step-by-step explanation:

smallest angle=x

3x=2nd angle

x+40=3rd angle

angles in a triangle add up to 180 degrees so

5x+40=180

5x=140

x=28

largest angle = 3x

so 3 x 28 = 84 degrees

The largest angle is 84 degrees

7 0
3 years ago
Read 2 more answers
Dan buys a car for £1700.
Crank

Answer: £2080.00 :)

hope it helps

5 0
3 years ago
Jenny is either a hippie or an artist. But Jenny is certainly not a hippie. So it can be concluded that Jenny is an artist is th
Natasha2012 [34]

Answer:

Deductive

Step-by-step explanation:

Jenny is an artist.

This is a deductive argument because the inductive use the particular to get the general and the deductive use the general to get the particular.

4 0
3 years ago
If prices increase at a monthly rate of 3.9%, by what percentage do they increase in a year?
kykrilka [37]
If it increases at 3.9% a month, then in a year it increases 46.8%. 
This is because a year has 12 months and so take 3.9(12)=46.8
8 0
3 years ago
Other questions:
  • Which of the following is a step in simplifying the expression x multiplied by y to the power of 2 over x to the power of negati
    5·1 answer
  • f 20% of the population are homozygous for the scalp-wiggling allele •(qq, or q 2), then what proportion of the population is ho
    10·1 answer
  • P(5,6), -4x + 5y = 15 <br> into slope intercept form
    15·1 answer
  • the greater roadrunner bird can run 14 miles per hour that's 7 times faster than an ostrich can walk how fast does an ostrich wa
    13·1 answer
  • PLEASE HELP! WILL MARK BRAINLIEST IF U ANSWER CORRECTLY! IF WRONG U WONT GET IT
    9·1 answer
  • What is the domian of the following represented by ordered pairs?
    5·2 answers
  • Albert's house, Billy's house and the candy store form a triangle as shown below. If Albert's house is 3 miles from the candy st
    10·1 answer
  • 3/5 x 7/9 multiplication​
    7·1 answer
  • 12x 11 then add 1220
    9·1 answer
  • PLEASE ANSWER !!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!