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Alecsey [184]
2 years ago
9

PLSSS HELP IF YOU TURLY KNOW THISS

Mathematics
1 answer:
vladimir2022 [97]2 years ago
6 0
0.62
Should be correct
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How do you do this ​
Inessa [10]

Answer:

Nice one. I will give the answer!!

Step-by-step explanation:

1- 29

2- 31

3- 22

4- 64

5- 45

6- 185

3 0
2 years ago
Suppose that water is pouring into a swimming pool in the shape of a right circular cylinder at a constant rate of 8 cubic feet
adell [148]

Answer:

dh/dt = 0,07 ft/min

Step-by-step explanation:

The swimming pool has the shape of right circular cylinder, therefore its volume is

V(c) = π*x²*h

Where x is the radius of the base and h the height

We take differentiation on both sides of the equation to get:

dV/dt  =  π*x²*dh/dt

The rate of change in height of water in the pool, is independent of the height of the water, since the pool is a right crcular cylinder, and dV/dt is constant at 8 ft³/min.

Then:

8  = π*x²*dh/dt

dh/dt = 8 /  π*x²

dh/dt = 8/113,04

dh/dt = 0,07 ft/min

7 0
3 years ago
the value of a car when purchased in 2008 was $21,500. It loses 12% of its value every year. What is the value of the car in 201
shusha [124]

Answer: the value of the car in 2019 is $5269

Step-by-step explanation:

It loses 12% of its value every year. This means that the value of the car is decaying exponentially. We would apply the formula for exponential decay which is expressed as

A = P(1 - r)^t

Where

A represents the value of the car after t years.

t represents the number of years.

P represents the initial value of the car.

r represents rate of decay.

From the information given,

P = $21500

r = 12% = 12/100 = 0.12

t = 2019 - 2008 = 11 years

Therefore

A = 21500(1 - 0.12)^11

A = 21500(0.88)^11

A = 5269

6 0
2 years ago
Solve by completing the square.<br> X^2-2x-15=0 (help)
gladu [14]

Step-by-step explanation:

x² - 2x - 15 = 0

x1 = 5

x2 = -3

8 0
3 years ago
Read 2 more answers
PLEASE HELP ILL GIVE YOU BRAINLIEST!!! Which number line represents the number 0.7?
Novay_Z [31]

Answer:

C

Step-by-step explanation:

We know 0.7 is in between 0 and 1

Thus the dot has to be in between 0 and 1

And it should be 7^t^h unit after 0

Observing all the number line , we see C is the absolute match!

8 0
3 years ago
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