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Kipish [7]
3 years ago
14

PLs Help! Pls help! Pls Help!

Mathematics
1 answer:
LiRa [457]3 years ago
5 0
70% of 60,000,000 is 42,000,000
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Your Checking Account is overdrawn by $50. You Write A check for $20. What Is The Balance in your account
larisa86 [58]
Ur overdrawn by 50...so ur balance is -50
u write a check for 20 bucks...that means ur taking out 20....-20
-50 - 20 = -70 balance
3 0
3 years ago
The volume of a spherical balloon is increasing at a constant rate of 3 in3/s. At what rate is the radius of the balloon increas
Anna [14]

Answer:

0.0597in/s

Step-by-step explanation:

The volume of the spherical balloon V= 4/3πr³

r is the radius of the balloon

The rate at which the volume is changing dV/dt is expressed as;\

dV/dt = dV/dr*dr/dt

dV/dr = 3(4/3πr²)

dV/dr = 4πr²

dV/dr = 4π(2)²

dV/dr = 16π

dV/dt = 3 in³/s

Substitute inti the formula

3 = 16πdr/dt

dr/dt = 3/16π

dr/dt = 3/50.24

dr/dt = 0.0597in/s

Hence the balloon is increasing at the rate of 0.0597in/s

3 0
3 years ago
What is the x, y, and z for this question?
Monica [59]

Answer:

x= -2

y=0

z= 1

Step-by-step explanation:

{-x+5y-10z=-8

2x-y+10z=6}

{2x-y+10z=6

-7x-3y-10y=4}

{-x+5y-10z=-8

2x-y+10z=6} = x+4y=-2

{2x-y+10z=6

-7x-3y-10y=4} = -5x-4y=10

{x+4y=-2

-5x-4y=-10}. =. y= 0 x= -2

substitute x and y in -x+5y-10z=-8

-(-2)+5(0)-10z=-8

solve for z

z= 1

(x,y,z) = (-2,0,1)

hope this helps

4 0
3 years ago
(0,2) (4.5,0) distance formula
miskamm [114]

The distance between them = 4.93

Step-by-step explanation:

The distance between two points (x1, y1) amd (x2, y2) is \sqrt{(y2-y1)^{2}+(x2-x1)^{2}  }

Now putting the values of (0,2) and (4.5, 0) we get,

\sqrt{(0-2)^{2}+(4.5-0)^{2}  }

= \sqrt{24.25} = 4.93 (approx)

8 0
3 years ago
Read 2 more answers
12x-y when x= 1/3, y=-2
Basile [38]

Answer:

Step-by-step explanation:

12 x 1/3-2

4 0
4 years ago
Read 2 more answers
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