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
Makovka662 [10]
3 years ago
15

Ok so this is so confusing The volume of water in a rectangular swimming pool can be modeled by the polynomial 2x3 _ 9x2 + 7x +

6. If the depth of the pool is given by the polynomial 2x + 1, what polynomials express the length and width of the pool? Why couldn't they just give me the volume?
Mathematics
1 answer:
Alika [10]3 years ago
6 0
The volume formula is V= l x L x H, l=width, L=Length, H= Depth, so 
2x3 _ 9x2 + 7x + 6 = l x L x (2x + 1), because H=(2x + 1), so 
l x L= (2x3 _ 9x2 + 7x + 6 )/ (2x + 1) = (2x3 _ 9x2 + 7x + 6 ) X [1/(2x + 1)]
case1: l= (2x3 _ 9x2 + 7x + 6 ) or L= 1/(2x + 1), case2: L= (2x3 _ 9x2 + 7x + 6 ) or l= 1/(2x + 1)
the why question:
perhaps there is similarity of value between volume and l, or volume and L
You might be interested in
Kin made a Picture frame for a square picture with sides that are 5f-4 inches long. Framing the picture adds 2 inches to the len
elena-s [515]

The perimeter of a shape is the sum of its side lengths

The expressions for the perimeter of the frame are 4(l + 2) and 4l + 8

<h3>How to determine the perimeter of the shape</h3>

The side length of the frame is given as l

So, the perimeter of the frame is

:P = 4l

When 2 inches are added to each length, the perimeter of the frame becomes

P =4(l + 2)

Expand

P =4l + 8

Hence, the expressions for the perimeter of the frame are 4(l + 2) and 4l + 8

Read more about perimeter at:

brainly.com/question/24571594

3 0
2 years ago
Which of the following is not an identity?
Shkiper50 [21]
A ) cos² x · 1 / sin x - 1 / sin x = - sin x
cos² x - 1 / sin x = - sin x 
- sin² x / sin x = - sin x
- sin x = - sin x     ( correct )
B ) sin x ( cos x / sin x + sin x / cos x ) = 1 / cos x
sin x · ( cos² x + sin²x ) / sin x cos x = 1 / cos x
sin x · 1 / sin x cos x = 1 / cos x
1 / cos x = 1 / cos x  ( correct )
C ) cos² x - sin² x = 1 - 2 sin² x
1 - sin² x - sin² x = 1 - 2 sin² x
1 - 2 sin² x = 1 - 2 sin² x   ( correct )
D ) 1/sin²x + 1/ cos²x = 1
cos²x + sin² x / sin² x cos² x = 1
1 / cos² x sin² x = 1
cos²x sin² x ≠ 1
Answer: D ) is not an identity. 
8 0
3 years ago
.........................
ivann1987 [24]

Answer:

2

Step-by-step explanation:

Please give me brainliest. Have a good day. :)

8 0
3 years ago
Read 2 more answers
3. A baseball diamond is a square that is 90 feet on each side. If a player throws the ball from 2nd base to
ch4aika [34]

Answer:

90 feet

Step-by-step explanation:

180-90=90

5 0
3 years ago
A land surveyor can survey 1 3/5 miles of a land’s borders in 1 ¼ hours. How long will it take him to complete a survey for 1 mi
notsponge [240]
Takes the s 1 h 15 m for 1 3/5 miles
so
75 min divided by 1.6=  about 46 min 
i am not completely sure if its correct
8 0
3 years ago
Other questions:
  • The mystery first name of a student in the class does not begin with A, B, C, D, E, or F. the names first letter comes before S,
    11·2 answers
  • If f(x) = -x + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph of (f +g)(x)?<br> -
    7·1 answer
  • How do I figure out which lines or segments are parallel in a equation?
    8·1 answer
  • Find the coordinates of the point of intersection of the graphs of lines: y=1−2x and y=x−5
    15·1 answer
  • Geoff and Max are college roommates. Geoff can clean their apartment in 2.5 hours and Max can clean their apartment in 3.25 hour
    8·1 answer
  • John, Karl, and Marcus each have a different favorite subject: math, English, and science. Each also has a different favorite co
    10·1 answer
  • $15 of Dan's $125 wages was<br> withheld for taxes. What percent<br> of his wages was withheld?
    11·2 answers
  • Choose the slope and y-intercept that correspond with the graph. ​ignore this
    7·2 answers
  • Find –(–14).<br> –14<br> –4<br> 4<br> 14
    12·1 answer
  • Amy and Darren each solved the following system of equations using a different method
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!