2 years ago

Can y’all help me with this plz

Mathematics

1 answer:

N76 [4]2 years ago

4 0

The first one is cost of jam $4, cost of soup $7

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THis is wierd math g g g g g

Ganezh [65]

It’s 3.5

use formula the formula
V=lwh
——
3

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2 years ago

Fifty six plus blank equals five hundred and four six

anzhelika [568]

Answer:

490

Step-by-step explanation:

546-56= 490

490+56= 546

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3 years ago

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A student on a piano stool rotates freely with an angular speed of 2.85 rev/s . The student holds a 1.50 kg mass in each outstre

Vlad1618 [11]

Answer:r'=0.327 m

Step-by-step explanation:

Given

$N=2.85 rev/s$

angular velocity $\omega =2\pi N=17.90 rad/s$

mass of objects $m=1.5 kg$

distance of objects from stool $r_1=0.789 m$

Combined moment of inertia of stool and student $=5.53 kg.m^2$

Now student pull off his hands so as to increase its speed to 3.60 rev/s

$\omega _2=2\pi N_2$

$\omega _2=2\pi 3.6=22.62 rad/s$

Initial moment of inertia of two masses $I_0=2mr_^2$

$I_0=2\times 1.5\times (0.789)^2=1.867$

After Pulling off hands so that r' is the distance of masses from stool

$I_0'=2\times 1.5\times (r')^2$

Conserving angular momentum

$I_1\omega =I_2\omega _2$

$(5.53+1.867)\cdot 17.90=(5.53+I_o')\cdot 22.62$

$I_0'=1.397\times 0.791$

$I_0'=5.851$

$5.53+2\times 1.5\times (r')^2=5.851$

$2\times 1.5\times (r')^2=0.321$

$r'^2=0.107009$

$r'=0.327 m$

7 0

3 years ago

The volume of a cone with a radius of 7 cm is 147 pi cubic centimeters. Which expression can be used to find h, the height of th

Aleks04 [339]

volume(V)=147cm^3

also,

v=1/3×3.14×7^2×h

or, 147×3=3.14×49×h

or, (441)/(3.14×49)=h

or, h=2.87cm

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3 years ago

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(5 + x) + 0 = 5 + x<br> What property is this

Paha777 [63]

Answer:

The Identity Property of Zero

Step-by-step explanation:

If you add 0 to any number, the result will be that number.

5 0

2 years ago

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