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3 years ago

Will give brainliest how to solve 3x-4y = 5x+7y

Mathematics

1 answer:

topjm [15]3 years ago

6 0

Answer:

(5x + -4y)(3x + 7y) = 0

Multiply (5x + -4y) * (3x + 7y)

(5x * (3x + 7y) + -4y * (3x + 7y)) = 0

((3x * 5x + 7y * 5x) + -4y * (3x + 7y)) = 0

Reorder the terms:

((35xy + 15x2) + -4y * (3x + 7y)) = 0

(35xy + 15x2 + (3x * -4y + 7y * -4y)) = 0

(35xy + 15x2 + (-12xy + -28y2)) = 0

Reorder the terms:

(35xy + -12xy + 15x2 + -28y2) = 0

Combine like terms: 35xy + -12xy = 23xy

(23xy + 15x2 + -28y2) = 0

Solving

23xy + 15x2 + -28y2 = 0

Solving for variable 'x'.

Factor a trinomial.

(5x + -4y)(3x + 7y) = 0

Step-by-step explanation:

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Likurg_2 [28]

Answer:

$X \sim Unif (a= 0, b=60)$

And we want to find the following probability:

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And for this case we can use the cumulative distribution given by:

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And for this case if we use this formula and the complement rule we have:

$P(X>30)= 1-P(X$

Step-by-step explanation:

Let X the random variable who represent the pizza delivery time and we know that the distribution for x is given by:

$X \sim Unif (a= 0, b=60)$

And we want to find the following probability:

$P(X>30)$

And for this case we can use the cumulative distribution given by:

$F(x) =\frac{x-a}{b-a}, a \leq x \leq b$

And for this case if we use this formula and the complement rule we have:

$P(X>30)= 1-P(X$

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4 years ago

Write an equation in slope-intercept form for the line that passes through (5,3) and is parallel to x+3y=6.

Grace [21]

Answer:

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Step-by-step explanation:

A parallel line would have the same left hand side, different right hand side.

Use the point to determine the new right hand side.

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3 years ago

Rectangle ABCDABCDA, B, C, D is graphed in the coordinate plane. The following are the vertices of the rectangle: A(-8, 3)A(−8,3

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9514 1404 393

Answer:

15 squre units

Step-by-step explanation:

The area of the rectangle is the product of its length and width. The length is AB = 5 units; the width is BC = 3 units. Then the area is ...

A = LW

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3 years ago

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Maru [420]

Answer:

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Step-by-step explanation:

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3 years ago

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8_murik_8 [283]

Answer: 5 s

Step-by-step explanation:

Given

Height of the rocket can be modelled as $h=80-16t^2$

Rocket will land on earth when it's height becomes 0

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Neglecting 0 value

Thus, rocket remains in air for 5 s.

3 0

3 years ago