2 years ago

We have an object with a density or 620 g/cm and a volume of 75cm. What is the mass of the object

Mathematics

2 answers:

katovenus [111]2 years ago

6 0

Answer:

420 cm

Step-by-step explanation:

Marianna [84]2 years ago

5 0

Answer:

hi wehere are fromkdfnckr

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Andrei [34K]

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y = 7

Step-by-step explanation:

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2 years ago

Which of the following is a solution to the differential equation xy′−3y=6 ?

ololo11 [35]

Answer:

$y = 5 {x}^{3} - 2$

Step-by-step explanation:

The given differential equation is :

xy′−3y=6

We want to determine which of the following options is a solution to the differential equations.

The function that satisfies the differential equation is a solution.

We can verify that

$y = 5 {x}^{3} - 2$

satisfy this differential equation.

We differentiate to get:

$y' = 15 {x}^{2}$

We substitute the function and its derivative into the differential equation to get:

$x(15 {x}^{2}) - 3(5 {x}^{3} - 2) = 6$

We expand and simplify on the left:

$15 {x}^{3}- 15 {x}^{3} + 6= 6$

This simplifies to:

$6 = 6$

Verified.

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3 years ago