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3 years ago

5(a-2b)-3(a-2b)algebra2 .-.

2 answers:

7 0

5(a - 2b) - 3(a - 2b) |use distributive property: a(b - c) = ab - ac

= 5a - 10b - 3a + 6b

= (5a - 3a) + (-10b + 6b)

= 2a - 4b

Otrada [13]3 years ago

3 0

Formula <span> </span> $a(b - c) = ab - ac
$

$5(a - 2b) - 3(a - 2b)$

$5a - 10b - 3a + 6b$

$(5a - 3a) + (-10b + 6b)$

$2a - 4b$

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I'm not entirely sure I did this right! But at least try!!!

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∠A and ∠B are supplementary, and ∠A and ∠C are supplementary. Which conclusion is valid? Select one: A. ∠B and ∠C are supplement

zysi [14]

Option D is the correct answer.

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D. ∠B and ∠C are congruent.

Step-by-step explanation:

Since, ∠A and ∠B are supplementary.

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3 years ago

Which equation does not define a function?

stira [4]

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3 years ago

What is the best approximation of the solutions to the system to the nearest integer values?

Aleksandr-060686 [28]

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3 years ago

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Bas_tet [7]

The average speed of Marcella in feet per seconds is 9.5 feet per second.

<h3>How are time taken for travel, distance traveled, and the average speed are related?</h3>

We have this below shown relation between them

$\text{Average speed} = \dfrac{\text{Distance traveled}}{\text{Total time taken to travel that distance}}\\\\or\\\\\text{Total time taken to travel that distance}= \dfrac{\text{Distance traveled}}{\text{Average speed} }$

For the given case, we have:

The equation $y=9.5x + 0.4$ represents the line of best fit for the distance (in feet) that Marcella traveled over time (in seconds)

The line of best fit can be taken as approximately telling about the data points ( y = distance traveled in feet, and x = time spent )

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The value of y and $y_1$ are calculated as:

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Thus, the average speed is calculated at time 'x' as:

$\text{Average speed} = \dfrac{\text{Distance traveled}}{\text{Total time taken to travel that distance}}\\\\or\\\\\text{Average speed} = \dfrac{y_1 - y}{x + 1 - x} = \dfrac{9.5x + 9.9 - 9.5x - 0.4}{1} = 9.5 \: \rm feet/sec$

We could've also used the fact that in the relation of y to x as $y = mx + c$ , 'm' denotes the rate of y as x changes.

Thus, the average speed of Marcella in feet per seconds is 9.5 feet per second.

Learn more about average rate here:

brainly.com/question/12322912

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