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inn [45]
2 years ago
13

5 feet 4 feet What is the area? 15 square feet 20 square feet 10 square feet

Mathematics
1 answer:
sesenic [268]2 years ago
7 0

it is 20

use the formula W x L =A

width (5) length (4)

5 x 4 is 20

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Let r3 have the euclidean inner product. let u = (-1, 1, 1) and v = (-7, 6, 15). if ||ku + v||= 7, what is k? give the exact ans
amm1812
Mak\mathbf u+\mathbf v=k(-1,1,1)+(-7,6,15)=(-k-7,k+6,k+15)

Recall that for a vector \mathbf x\in\mathbb R^n, we have \|\mathbf x\|=\sqrt{\mathbf x\cdot\mathbf x}. So we have

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2 years ago
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Answer:

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