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marissa [1.9K]
2 years ago
6

Subtract 6(x^2-xy) from 3x(x-y)

Mathematics
2 answers:
den301095 [7]2 years ago
7 0

3 {x}(x - y) - 6 ({x}^{2}  - xy) \\  = 3 {x}^{2}  - 3xy - 6 {x}^{2}  + 6xy \\ =  3xy - 3 {x}^{2}

=3x(y-x)

rusak2 [61]2 years ago
4 0

Answer:

-3x ( x - y )

Step-by-step explanation:

3x ( x - y ) - 6 ( x² - x y )

<em>Solve the brackets.</em>

3x² - 3 x y - 6x² + 6 x y

<em>Combine like terms.</em>

3x² - 6x² - 3 x y + 6 x y

-3x² + 3 x y

Factorize the answer.

<u>-3x ( x - y )</u>

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In a population of similar households, suppose the weekly supermarket expense for a typical household is normally distributed wi
Rina8888 [55]

Answer:

P(Y ≥ 15) = 0.763

Step-by-step explanation:

Given that:

Mean =135

standard deviation = 12

sample size n  = 50

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P(X>140) = 1 - P( \dfrac{X-\mu}{\sigma} \leq \dfrac{5}{12})

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From z tables,

P(X>140) = 1 - 0.6628

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3 years ago
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Setting StartFraction 7 over 3 EndFraction equal to which ratio would result in a valid proportion?
pochemuha

Answer:

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Step-by-step explanation:

In this question, we are asked to select which of the options have the same value as 7/3

We examine the options one urge other.

Option A

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Option B

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Option C

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Option D

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Step-by-step explanation:

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