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3 years ago

Can anyone help me with this

Mathematics

1 answer:

cestrela7 [59]3 years ago

4 0

I think it box c or box a. It you have to do the math sorry but wish you luck tho

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HELP PLEASE DUE IN 4 MINUTES

Angelina_Jolie [31]

Answer:

475

Step-by-step explanation:

If each represents 100

For carousel, there are 4 whole and a 3/4

Hence,

4(100)+3/4(100)

=475

3 0

2 years ago

3 true? For what value of x is the equation 2-3 - +4 À B. 3 C. 9 D. -15

noname [10]

Answer:

Step-by-step explanation:

2 -3 = -1 + 4 = 3

4 0

3 years ago

What is the equation for each line?

galina1969 [7]

Red: y= 2x
Black: y= 2x
Yellow: y= -3x
Green: zero slope
Blue: undefined slope

8 0

3 years ago

Pls i need help on these I HAVE BEEN STUCK

pochemuha

Answer:

C for Question 3

B for Question 4

8 0

3 years ago

Choose the best coordinate system to find the volume of the portion of the solid sphere rho <_4 that lies between the cones φ

MrRissso [65]

Answer:

So, the volume is:

$\boxed{V=\frac{128\sqrt{2}\pi}{3}}$

Step-by-step explanation:

We get the limits of integration:

$R=\left\lbrace(\rho, \varphi, \theta):\, 0\leq \rho \leq 4,\, \frac{\pi}{4}\leq \varphi\leq \frac{3\pi}{4},\, 0\leq \theta \leq 2\pi\right\rbrace$

We use the spherical coordinates and we calculate a triple integral:

$V=\int_0^{2\pi}\int_{\frac{\pi}{4}}^{\frac{3\pi}{4}}\int_0^4 \rho^2 \sin \varphi \, d\rho\, d\varphi\, d\theta\\\\V=\int_0^{2\pi}\int_{\frac{\pi}{4}}^{\frac{3\pi}{4}} \sin \varphi \left[\frac{\rho^3}{3}\right]_0^4\, d\varphi\, d\theta\\\\V=\int_0^{2\pi}\int_{\frac{\pi}{4}}^{\frac{3\pi}{4}} \sin \varphi \cdot \frac{64}{3} \, d\varphi\, d\theta\\\\V=\frac{64}{3} \int_0^{2\pi} [-\cos \varphi]_{\frac{\pi}{4}}^{\frac{3\pi}{4}} \, d\theta\\\\V=\frac{64}{3} \int_0^{2\pi} \sqrt{2} \, d\theta\\\\$

we get:

$V=\frac{64}{3} \int_0^{2\pi} \sqrt{2} \, d\theta\\\\V=\frac{64\sqrt{2}}{3}\cdot[\theta]_0^{2\pi}\\\\V=\frac{128\sqrt{2}\pi}{3}$

So, the volume is:

$\boxed{V=\frac{128\sqrt{2}\pi}{3}}$

4 0

3 years ago