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
Slav-nsk [51]
2 years ago
6

The long side of a rectangle is 3x+21 units, and it's area is 3x^2+33x+84. Find the width

Mathematics
1 answer:
ella [17]2 years ago
3 0
L*w=area
(3x+21)*w=3x^2+33x+84
w=(3x^2+33x+84)/3x+21
(3(x+4)(x+7))/3(x+7)
w=x+4
You might be interested in
To hang lights up on his house.Garrett place is a 14 foot ladder 4 feet from the base of the house. How high up the house will t
Mariulka [41]

This seems like a right triangle problem.

So assuming 14 feet is the hypotenuse and 4 feet is a leg of the right triangle, we can use the pythagorean theorem (a^{2} +b^{2} =c^{2}) to solve for the height of the house, in which we shall name it x.

So, the equation is 4^{2} +x^{2} =14^{2}.

Solve for x:

16+x^{2}= 196

x^{2}= 196-16

x^{2}= 180

x = 6√5 feet


Hope this helps!

6 0
2 years ago
Read 2 more answers
What's the proper name of this quadrilateral?
klemol [59]
Trapezoid because a trapezoid is a quaderateral with 4 sides
4 0
3 years ago
Read 2 more answers
Exam​ question: You can buy a 57​-pound bag of flour for ​$ 11 or you can buy a​ 1-pound bag for $ 0.41 Compare the per pound co
egoroff_w [7]

Answer:

Step-by-step explanation:

57 lb bag for $ 11  or 1 lb bag for $ 0.41

11/51 = 0.215 .....rounds to 0.22 ......this is the correct way...... the student messed up and divided wrong.

the large bag only charges $ 0.22 per lb, whereas, the small bag charges $ 0.41 per lb.

3 0
3 years ago
The slope of the line below is -5 which of the following is the point-slope form of the line (2,-8)
insens350 [35]
The point slope form has the following syntax.

y - y_1 = m(x - x_1)
m = slope = -5 
y - y_1 = -5(x - x_1)
(x,y) = (2,-8)
x_1 = 2
y_1 = -8
y - y_1 = -5(x - x_1)
y - (-8) = -5(x - 2)
y + 8 = -5(x - 2)  <------Answer

3 0
3 years ago
If like line A is changed to line B how will the equation change
Alla [95]

Answer:

Line B will become line A and Line A will become line B.

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Can someone please help me?
    11·1 answer
  • Find the value of X
    8·1 answer
  • How many pints in a quarts
    14·1 answer
  • What is 5 divided by n plus 3
    5·1 answer
  • After dividing a piece of wood into four equal sections,each section is 4 in.long.How long was the piece of wood I started with
    5·1 answer
  • how do you find the perpendicular distance between a line segment and a point? (photo attached) i’m stuck
    11·1 answer
  • triangle abc is rotated 90° clockwise about the origin. what is the rules that we can use to find the vertices location of the i
    12·1 answer
  • The second side of a triangular deck is 4 feet longer than the shortest​ side, and the third side is 4 feet shorter than twice t
    9·1 answer
  • What is the measure of the indicated angle?<br><br> 180°<br><br> 6°<br><br> 84°<br><br> 96°
    5·2 answers
  • A cone is placed inside a cylinder as shown. The radius of the cone is half the radius of the cylinder. The height of the cone i
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!