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Let r = ⟨5, –1⟩, s = ⟨6, 0⟩, and t = ⟨–1, –3⟩. Aaron incorrectly determined 2r + 4s – 7t as ⟨41, –23⟩. Review his calculations.
2r + 4s – 7t
2⟨5, –1⟩ + 4⟨6, 0⟩ – 7⟨–1, –3⟩
⟨10, –2⟩ + ⟨24, 0⟩ + ⟨7, –21⟩
⟨41, –23⟩

What mistake did Aaron make?

He added ⟨10, –2⟩ + ⟨24, 0⟩ + ⟨7, –21⟩ incorrectly.
He should have subtracted ⟨7, –21⟩ rather than add.
He did not correctly distribute 4 to both components of s.
He did not correctly distribute the negative when subtracting 7t.

Respuesta :

Answer:

I got D

Step-by-step explanation:

From the calculation, we can see that He did not correctly distribute the negative when subtracting 7t.

How to find the system of equations needed to solve an equation?

An equation usually consists of the equality of two mathematical expressions. Let it be  A = B

If we take them to be equal to third variable, then:

A = B = C type of equation is obtained.

We can then take it as system of two equations as:

A = C\\ B=C

The solution to an equation is finding values of the variable included in the considered equation for which the equation considered evaluates to be true.

Let r = ⟨5, –1⟩, s = ⟨6, 0⟩, and t = ⟨–1, –3⟩.

Aaron incorrectly determined 2r + 4s – 7t as ⟨41, –23⟩.

By Reviewing his calculations.

2r + 4s – 7t

2⟨5, –1⟩ + 4⟨6, 0⟩ – 7⟨–1, –3⟩

⟨10, –2⟩ + ⟨24, 0⟩ + ⟨7, –21⟩

⟨41, –23⟩

From the above calculation, we can see that

He did not correctly distribute the negative when subtracting 7t.

Learn more about finding the solution here:

https://brainly.com/question/26254258

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