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andreyandreev [35.5K]
3 years ago
13

Which expression is equivalent to 5y^3/(5y)^-2 A.y^5 B.y^6 C.125y^3 D.125y^5

Mathematics
2 answers:
inn [45]3 years ago
8 0

Answer:

A) Y^5

Step-by-step explanation:

mezya [45]3 years ago
5 0

Answer:

D.125y^5

Step-by-step explanation:

5y^3/(5y)^-2

= 5y^3 * (5y)^2

= 5^(1 + 2) * y^(3+2)

= 5^3 y^5

= 125y^5

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Step-by-step explanation:

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Step-by-step explanation:

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Average Temperatures Suppose the temperature (degrees F) in a river at a point x meters downstream from a factory that is discha
mr Goodwill [35]

Answer:

Step-by-step explanation:

Average Temperatures Suppose the temperature (degrees F) in a river at a point x meters downstream from a factory that is discharging hot water into the river is given by

T(x) = 160-0.05x^2

a. [0, 10]

For x = 0

T(0) = 160 - 0.05 × 0^2

T(0) = 160

For x = 10

T(10) = 160 - 0.05 × 10^2

T(10) = 160 - 5 = 155

The average temperature

= (160 + 155)/2 = 157.5

b. [10, 40]

For x = 10

T(10) = 160 - 0.05 × 10^2

T(10) = 160 - 5 = 155

For x = 40

T(10) = 160 - 0.05 × 40^2

T(10) = 160 - 80 = 80

The average temperature

= (80 + 155)/2 = 117.5

c. [0, 40]

For x = 0

T(0) = 160 - 0.05 × 0^2

T(0) = 160

For x = 40

T(10) = 160 - 0.05 × 40^2

T(10) = 160 - 80 = 80

The average temperature

= (160 + 80)/2 = 120

6 0
3 years ago
Point E is located at coordinates (-7, -5) Point F is located at coordinates (-2, 7). What is the length of EF?
Alenkinab [10]

Answer:

12 units?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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