3 years ago

9h×70mi/h plz help me with this!!

Mathematics

1 answer:

MrRissso [65]3 years ago

3 0

630 miles in 9 hours is the answer

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

Rama09 [41]

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

4 0

4 years ago

Mongoose McHuffy has a bike shop. He only has bicycles and tricycles in stock. In total he has 21 items in stock with a total of

olasank [31]

Answer:

12 bikes

9 tricycles

Step-by-step explanation:

x+y=21

2x+3y=51

x=-y+21

2(-y+21)+3y=51

-2y+42+3y=51

y+42=51

y=9

x=12

5 0

3 years ago

0.51 + 0.63 = ? and 1.93 + 1.73 = ?

Anastasy [175]

For the first one: 1.14
Second one: 3.66

5 0

3 years ago

Read 2 more answers

Given [12 -13 17 -22] [x y] = [7 -51] what is |Ay|? Please help

grin007 [14]

Answer:

Step-by-step explanation:

It's not c or d. It's not much but I hope it helps.

5 0

3 years ago

Read 2 more answers

Add then divide. Evaluate (7.3 X 10) + (2.4 X 107) (4 X 104)

Deffense [45]

Answer:

6.0 x 10^2

Step-by-step explanation:

(7.3 X 10) + (2.4 X 10^7)

(4 X 10^4)

= 73 + 24000000

40000

= 24000073

40000

= 6.0 x 10^2

4 0

3 years ago

9h×70mi/h plz help me with this!!​

9h×70mi/h plz help me with this!!