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earnstyle [38]
3 years ago
13

Find the volume of the solid generated by revolving the region bounded by

Mathematics
1 answer:
Rama09 [41]3 years ago
4 0

Answer:

V =\dfrac{25\pi}{\sqrt{2}}

Step-by-step explanation:

given,

y=5√sinx

Volume of the solid by revolving

V = \int_a^b(\pi y^2)dx

a and b are the limits of the integrals

now,

V = \int_a^b(\pi (5\sqrt{sinx})^2)dx

V =25\pi \int_{\pi/4}^{\pi/2}sinxdx

\int sin x = - cos x

V =25\pi [-cos x]_{\pi/4}^{\pi/2}

V =25\pi [-cos (\pi/2)+cos(\pi/4)]

V =25\pi [0+\dfrac{1}{\sqrt{2}}]

V =\dfrac{25\pi}{\sqrt{2}}

volume of the solid generated is equal to V =\dfrac{25\pi}{\sqrt{2}}

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The ratio of pink roses bushes to white rose bushes in the city Garden is about 12 to 15. If there were 92 pink rose bushes, abo
andreyandreev [35.5K]

Answer:

115\ white\ rose\ bushes

Step-by-step explanation:

Let

x------> the number of pink roses bushes

y----> the number of white rose bushes

we know that

\frac{x}{y} =\frac{12}{15}

y=\frac{15}{12}x -----> equation A

x=92

substitute the value of x in the equation A

y=\frac{15}{12}(92)=115\ white\ rose\ bushes


8 0
3 years ago
What is the equation of the line passing through (-2,-7) (4,23)
malfutka [58]

Answer:

The equation of line Passing through (2,3) and (4,7)

The slope of line is  

4−2

7−3

​  

=  

2

4

​  

=2

The equation of line is y−7=2(x−4)

y−7=2x−8

2x−y−1=0

Step-by-step explanation:

5 0
3 years ago
True or false: equilateral triangles can be classified as acute right or obtuse
Ne4ueva [31]
False, since all sides are equal all angles must be equal and when you have an obtuse or right triangle only on angle is obtuse or right. since one is different it cannot be equal on all sides making this statement false
8 0
3 years ago
Represent each of these temperatures in degrees Fahrenheit with a positive or negative number.
Anuta_ua [19.1K]
5 degrees above is 5°F
3 degrees below is -3°F
6 degrees above is 6°F
2 3/4 below is -2.74°F
5 0
3 years ago
PLEASE HELP I HAVE LIMITED TIME!!
MakcuM [25]

Answer:

N: n = 5 sides

side length: a = 23.2 m

inradius: r = 15.966 m

circumradius: R = 19.7351 m

Area: A = 926.03 m2

perimeter: P = 116 m

interior angle: x = 108 °

exterior angle:  y = 72 °

Description:

We use the calculations on the shape 16 and 23.2. Side length is 23.2. Pi is 16. calculate the numbers and all the answers are added above.

Please mark brainliest

<em><u>Hope this helps.</u></em>

8 0
3 years ago
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