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
dybincka [34]
3 years ago
10

A community swimming pool is a rectangular prism that is 30 feet long, 12 feet wide, and 5 feet deep. The wading pool is half as

long, half as deep, and the same width as the larger pool.
How many times greater is the volume of the swimming pool than the volume of the wading pool?
Mathematics
1 answer:
trasher [3.6K]3 years ago
8 0
The correct answer is 1,350
You might be interested in
12+6<br> What is the value of when N= 2?<br> N<br> O A. 6<br> OB. 9<br> O C. 12<br> O D. 18
Artemon [7]

Answer:

Where is the N in the equation

5 0
3 years ago
√x + 2√b<br><br> What’s the conjugate?
MakcuM [25]

Answer: -2\sqrt{b}

Step-by-step explanation:

the conjugate is:

-2\sqrt{b}

8 0
2 years ago
ILL MARK BRAINIEST IF U DO THIS RIGHT!!!
barxatty [35]

Answer:

D because even though the flat fee is 150 paying 5$ a hour it will cost less

6 0
3 years ago
Jennifer places $500 into a savings account that is paying 1.5% annual interest. The interest is compounded monthly. How much mo
Anna11 [10]

Answer:

$522.99

Step-by-step explanation:

FV  = P (1 + \frac{r}{n} )^n^t

Fv = total amount plus interest over the given period of time

P = Principal amount deposited i.e $500

r = interest given 1.5% i.e 0.015

n = period of time the principal remains deposited. In this case annually i.e 12 months

FV = 500 ( 1 + \frac{0.015}{12} ) ^1^2^X^3

FV = 500 ( 1.04599)

FV = $522.99

4 0
4 years ago
Find the critical points of the function f(x, y) = 8y2x − 8yx2 + 9xy. Determine whether they are local minima, local maxima, or
NARA [144]

Answer:

Saddle point: (0,0)

Local minimum: (\frac{3}{8}, -\frac{3}{8})

Local maxima: (0,-\frac{9}{8}), (\frac{9}{8},0)

Step-by-step explanation:

The function is:

f(x,y) = 8\cdot y^{2}\cdot x -8\cdot y\cdot x^{2} + 9\cdot x \cdot y

The partial derivatives of the function are included below:

\frac{\partial f}{\partial x} = 8\cdot y^{2}-16\cdot y\cdot x+9\cdot y

\frac{\partial f}{\partial x} = y \cdot (8\cdot y -16\cdot x + 9)

\frac{\partial f}{\partial y} = 16\cdot y \cdot x - 8 \cdot x^{2} + 9\cdot x

\frac{\partial f}{\partial y} = x \cdot (16\cdot y - 8\cdot x + 9)

Local minima, local maxima and saddle points are determined by equalizing  both partial derivatives to zero.

y \cdot (8\cdot y -16\cdot x + 9) = 0

x \cdot (16\cdot y - 8\cdot x + 9) = 0

It is quite evident that one point is (0,0). Another point is found by solving the following system of linear equations:

\left \{ {{-16\cdot x + 8\cdot y=-9} \atop {-8\cdot x + 16\cdot y=-9}} \right.

The solution of the system is (3/8, -3/8).

Let assume that y = 0, the nonlinear system is reduced to a sole expression:

x\cdot (-8\cdot x + 9) = 0

Another solution is (9/8,0).

Now, let consider that x = 0, the nonlinear system is now reduced to this:

y\cdot (8\cdot y+9) = 0

Another solution is (0, -9/8).

The next step is to determine whether point is a local maximum, a local minimum or a saddle point. The second derivative test:

H = \frac{\partial^{2} f}{\partial x^{2}} \cdot \frac{\partial^{2} f}{\partial y^{2}} - \frac{\partial^{2} f}{\partial x \partial y}

The second derivatives of the function are:

\frac{\partial^{2} f}{\partial x^{2}} = 0

\frac{\partial^{2} f}{\partial y^{2}} = 0

\frac{\partial^{2} f}{\partial x \partial y} = 16\cdot y -16\cdot x + 9

Then, the expression is simplified to this and each point is tested:

H = -16\cdot y +16\cdot x -9

S1: (0,0)

H = -9 (Saddle Point)

S2: (3/8,-3/8)

H = 3 (Local maximum or minimum)

S3: (9/8, 0)

H = 9 (Local maximum or minimum)

S4: (0, - 9/8)

H = 9 (Local maximum or minimum)

Unfortunately, the second derivative test associated with the function does offer an effective method to distinguish between local maximum and local minimums. A more direct approach is used to make a fair classification:

S2: (3/8,-3/8)

f(\frac{3}{8} ,-\frac{3}{8} ) = - \frac{27}{64} (Local minimum)

S3: (9/8, 0)

f(\frac{9}{8},0) = 0 (Local maximum)

S4: (0, - 9/8)

f(0,-\frac{9}{8} ) = 0 (Local maximum)

Saddle point: (0,0)

Local minimum: (\frac{3}{8}, -\frac{3}{8})

Local maxima: (0,-\frac{9}{8}), (\frac{9}{8},0)

4 0
3 years ago
Other questions:
  • Is 0.4 m less than 5cm?
    11·2 answers
  • A science fair poster is a rectangle 48 inches long and 24inches wide. What is the area of the poster in square feet?
    9·1 answer
  • Find the equation of the linear function represented by the table below in slope-intercept form. x y 1 2 2 7 3 12 4 17
    11·1 answer
  • A certain company stock has
    10·1 answer
  • Write a situation that could be modeled by the equation b = 100 - S.​
    15·1 answer
  • Solve 6 Eighth grade mathmatics
    6·2 answers
  • Oliver rides his bike 43 miles in 2.5 hours. How many miles will he ride in 3.5 hours?
    12·1 answer
  • Iconic memory is a type of memory that holds visual information for about half a second (0.5 seconds). To demonstrate this type
    5·1 answer
  • I have worked out trapezium's area but didn't work out triangle's. I need it fast, for tomorrow​
    12·1 answer
  • Help me on maths plsssss​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!