All categories

3 years ago

Determine the areaaa

Mathematics

1 answer:

Ilia_Sergeevich [38]3 years ago

5 0

I hope this helps you

Area=pi.r^2

Area=pi.5^2=25.pi

Area=3,14.25=78,5

You might be interested in

I need help with number 6

n200080 [17]

Step-by-step explanation:

I underlined the answer in red, hope this helps

4 0

3 years ago

Help ===================

Lorico [155]

Answer:

A = 1725 ft^2

Step-by-step explanation:

A = a + b * h

A = area

a = top

b = base

h = height

A = a + b * h

A = 65 + 50 * 30

A = 57.5 * 30

A = 1725 ft^2

4 0

3 years ago

The sum of three consecutive integers is forty -two. find the three numbers

WITCHER [35]

Answer:

13, 14, 15 right?

Step-by-step explanation:

4 0

3 years ago

A) Find a particular solution to y" + 2y = e^3 + x^3. b) Find the general solution.

Reptile [31]

Answer:

a.P.I= $\frac{e^{3x}}{11}+\frac{1}{2}(x^3-3x)$

b.G.S= $C_1Cos \sqrt2 x+C_2 Sin\sqrt2 x+\frac{1}{11}e^{3x}+\frac{1}{2}(x^3-3x}$

Step-by-step explanation:

We are given that a linear differential equation

$y''+2y=e^{3x}+x^3$

We have to find the particular solution

P.I= $\frac{e^{3x}}{D^2+2}+\frac{x^3}{D^2+2}$

P.I= $\frac{e^{3x}}{3^2+2}+\frac{1}{2} x^3(1+\frac{D^2}{2})^{-2}$

P.I= $\frac{e^{3x}}{11}+\frac{1-2\frac{D^2}{4}+3\frac{D^4}{16}+...}{2}x^3$

P.I= $\frac{e^{3x}}{11}+\frac{x^3-2\frac{\cdot3\cdot 2x}{4}}{2}+0}$ (higher order terms can be neglected

P.I= $\frac{e^{3x}}{11}+\frac{1}{2}(x^3-3x)$

b.Characteristics equation

$D^2+2=0$

$D=\pm\sqrt2 i$

C.F= $C_1cos \sqrt2x+C_2 sin\sqrt2 x$

G.S=C.F+P.I

G.S= $C_1Cos \sqrt2 x+C_2 Sin\sqrt2 x+\frac{1}{11}e^{3x}+\frac{1}{2}(x^3-3x)$

3 0

4 years ago

I need help please it would mean alot

earnstyle [38]

Answer:

It would be Step 3

3 0

3 years ago

Read 2 more answers