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3 years ago

I if 700 tickets were sold for a concert and only 587 people attended, how many people bought a ticket but Did not attend

Mathematics

1 answer:

a_sh-v [17]3 years ago

3 0

113 people Did Not attend the concert.

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What is 14.876 - 4.96

d1i1m1o1n [39]

Answer:

9.916 is the answer

4 0

3 years ago

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Solve.<br> 45 = 4(a + 3) – 3

Alex787 [66]

Answer:

a = 9

Step-by-step explanation:

45 = 4(a + 3) – 3

Add 3 to both sides.

48 = 4(a + 3)

Divide both sides by 4.

12 = a + 3

Subtract 3 from both sides.

9 = a

a = 9

Answer: a = 9

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2 years ago

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Find the moment of inertia about the y-axis of the thin semicirular region of constant density

arlik [135]

The moment of inertia about the y-axis of the thin semicircular region of constant density is given below.

$\rm I_y = \dfrac{1}{8} \times \pi r^4$

<h3>What is rotational inertia?</h3>

Any item that can be turned has rotational inertia as a quality. It's a scalar value that indicates how complex it is to adjust an object's rotational velocity around a certain axis.

Then the moment of inertia about the y-axis of the thin semicircular region of constant density will be

$\rm I_x = \int y^2 dA\\\\I_y = \int x^2 dA$

x = r cos θ

y = r sin θ

dA = r dr dθ

Then the moment of inertia about the x-axis will be

$\rm I_x = \int _0^r \int _0^{\pi} (r\sin \theta )^2 \ r \ dr \ d\theta\\\\\rm I_x = \int _0^r \int _0^{\pi} r^3 \sin ^2\theta \ dr \ d\theta$

On integration, we have

$\rm I_x = \dfrac{1}{8} \times \pi r^4$

Then the moment of inertia about the y-axis will be

$\rm I_y = \int _0^r \int _0^{\pi} (r\cos\theta )^2 \ r \ dr \ d\theta\\\\\rm I_y = \int _0^r \int _0^{\pi} r^3 \cos ^2\theta \ dr \ d\theta$

On integration, we have

$\rm I_y = \dfrac{1}{8} \times \pi r^4$

Then the moment of inertia about O will be

$\rm I_o = I_x + I_y\\\\I_o = \dfrac{1}{8} \times \pi r^4 + \dfrac{1}{8} \times \pi r^4\\\\I_o = \dfrac{1}{4} \times \pi r^4$

More about the rotational inertia link is given below.

brainly.com/question/22513079

#SPJ4

3 0

2 years ago

7a - 5b + 4 i really need help with this. They are so confusing and I've been trying to them for like 2 days now.

natali 33 [55]

No solution so 0. You can't simplify or factor in any way.

5 0

3 years ago

Peter used a $5.00 gift certificate to help pay for his lunch. After adding a 15% tip to the cost of his meal, Peter stil had to

pochemuha

He paid 2.71 because a 15% tip of $2.36 bill is 35 cent

5 0

3 years ago