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2 years ago

PLEASE HELP ME 50 POINTS!!!! Identify an expression that is equivalent to 0.3(15y).

Mathematics

2 answers:

IgorC [24]2 years ago

7 0

Answer: 4.5y

Step-by-step explanation: You have To Multiply 15 times 0.3 and you get 4.5y

Yuri [45]2 years ago

3 0

Answer:

You have To Multiply 15 times 0.3 and you get 4.5y

Step-by-step explanation:

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The memory card on melcher did it's camera can hold about 430 pictures. Melcher used 18% of the memory card while taking picture

Korolek [52]

Just cross multiply to find 18% of 430
18/100 = x/430
430 X 18 = 7740
7740 = 100x
7740/100 = 77.4
so Melcher took about 77 photos.

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Implicit diffrention problems I am really stuck on

AysviL [449]

Answer:

$\frac{dy}{dx} =\frac{4x^3+3x^2y-5y^2}{10xy-3y^2-x^3}$

Step-by-step explanation:

solving for dy/dx

multiply the equation out to remove parentheses

$x^4 + x^3y = 5xy^2 -y^3$

now differentiating in terms of x ( $\frac{dy}{dx}$ )

$4x^3 +3x^2y + x^3(\frac{dy}{dx} ) = 5y^2 + 10xy(\frac{dy}{dx} )-3y^2(\frac{dy}{dx} )$

isolating dy/dx to one side

$4x^3 +3x^2y - 5y^2= 10xy(\frac{dy}{dx} )-3y^2(\frac{dy}{dx} )-x^3(\frac{dy}{dx} )$

$4x^3 +3x^2y - 5y^2= \frac{dy}{dx}(10xy-3y^2-x^3)$

$\frac{dy}{dx} =\frac{4x^3+3x^2y-5y^2}{10xy-3y^2-x^3}$

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3 years ago

Complete the square and graph: 9y²−x − 18y +10=0

Nitella [24]

Answer:

See below ~

Step-by-step explanation:

Completing the square :

9y² - x - 18y + 10 = 0
9y² - 18y + 9 - 9 - x + 10 = 0
(3y - 3)² - x + 1 = 0

Graph :

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Umnica [9.8K]

Solution:

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2 years ago

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Marrrta [24]

Answer:

5 units.

Step-by-step explanation:

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3 years ago

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