Let u = ⟨9, –2⟩, v = ⟨–4, 3⟩, and w = ⟨5, 1⟩. Kelcy incorrectly determined 3u – 5(v + w) to be ⟨32, –26⟩. Review her steps as shown. 3u – 5(v + w)

3⟨9, –2⟩ – 5[⟨–4, 3⟩ + ⟨5, 1⟩]

⟨27, –6⟩ – 5[⟨–1, 4⟩]

⟨27, –6⟩ + ⟨5, –20⟩

⟨32, –26⟩

What mistake did Kelcy make?

She added incorrectly

Step-by-step explanation:

She added ⟨–4, 3⟩ and ⟨5, 1⟩ incorrectly.

Step-by-step explanation:

Edge 2021, sorry I couldn't be more help in explaining it

y=mx+b

step-by-step explanation:

m slope, b y-intercept

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation: