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Natali [406]
3 years ago
5

Solve dy/dx = sqrt x+16 subject to the initial condition y(0)=0

Mathematics
1 answer:
ivann1987 [24]3 years ago
8 0

Answer:

y=\frac{2}{3} x^{\frac{3}{2}} + 16x

or

y=\frac{2}{3} \sqrt{x^{3}} + 16x

Step-by-step explanation:

\frac{dy}{dx} = \sqrt{x} + 16\\ \int\limits {dy} \ =\int\limits { (\sqrt{x} + 16)} \, dx =\\=\int\limits { (x^{\frac{1}{2} } + 16)} \, dx=\int\limits {x^{\frac{1}{2} } } \, dx +\int\limits{16} \, dx = \frac{2}{3} x^{\frac{3}{2}} + 16x + C\\y=\frac{2}{3} x^{\frac{3}{2}} + 16x + C\\0=\frac{2}{3} *0^{\frac{3}{2}} + 16*0 + C\\C=0\\y=\frac{2}{3} x^{\frac{3}{2}} + 16x

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What is the value of z?
babymother [125]

Answer:

Step-by-step explanation:

<u>Item 1:</u>

Discount = Original price - discount price

             = 22.50 - 13.50

             = $ 9

Discount percentage = \frac{9}{22.50}*100\\\\

                                   = 40%

Discount percentage = 40%

Tax = 14.31 - 13.50 = $0.81

Tax% = \frac{0.81}{13.50}*100\\\\  = 6%

Tax percentage = 6%

<u>Item 2:</u>

Tax = 6% of 16.20

      = 0.06 * 16.20

      = 0.972

Tax = $ 0.97

Total price (including tax )= 16.20 + 0.97 = $ 17.17

         x = $ 17.17

<u>Item 3:</u>

Discount  = 40% of 32.50

                        = 0.4 * 32.50

                        = $ 13

y =  32.50 -13

y = $ 19. 50

Tax = 6% of 19.50

       = 0.06 * 19.50

       = 1.17

z = 1.17 + 19.50

Z  =$ 20.67

                   

5 0
2 years ago
Center (-9,0) radius 1
gogolik [260]

Answer:

Step-by-step explanation:

im guessing you need the equation of the circle?

plugging it into the standard circle equaition you would get (x+9)^2+y^2=1 and then you would just need to rearaange it into standard form

5 0
2 years ago
Please help! I really need it!
amm1812

Answer:

1.  x > 4

2.  m < 2

3.  x > 2

4.  x < -6

Step-by-step explanation:

These 4 inequalities will be solved the same way we solve equations. We take variables to one side and numbers to another and use algebra to solve. Each of them are solved shown below:

1.

4+6x

so x is greater than 4, we can write (variable first):

x > 4

2.

m+16>8m+2\\16-2>8m-m\\14>7m\\\frac{14}{7}>m\\2>m

so m is less than 2, we can write:

m < 2

3.

5x-1>13-2x\\5x+2x>13+1\\7x>14\\x>\frac{14}{7}\\x>2

so x is greater than 2, we can write:

x > 2

4.

-3x-2>-x+10\\-2-10>-x+3x\\-12>2x\\\frac{-12}{2}>x\\-6>x

so x is less than -6, we can write:

x < -6

8 0
3 years ago
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katrin2010 [14]
The answer is just x
6 0
3 years ago
Read 2 more answers
Leslie took a total of 40 quizzes over the course of 5 weeks. After attending 7 weeks of school this quarter, how many quizzes w
kow [346]

Answer:

56 quizzes

Step-by-step explanation:

40 quizzes = 5 weeks

To find the unit rate of quizzes / week, we can divide both sides by 5

40/5 quizzes = 5/5 weeks

8 quizzes = 1 week

Multiply both sides by 7 to find the amount of quizzes in 7 weeks

8 * 7 quizzes = 1 * 7 weeks

56 quizzes = 7 weeks

5 0
2 years ago
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