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Solnce55 [7]
3 years ago
7

What is an expression for vector x involving vector r, vector s, and vector t?

Mathematics
1 answer:
navik [9.2K]3 years ago
3 0
X = -3r + s - t ....
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Evaluate x/y for x equals 3/10 and y equals 4/5
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Answer:

  x/y = 3/8

Step-by-step explanation:

y = 4/5 = 8/10, so ...

  x/y = (3/10)/(8/10) = 3/8

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One way to divide fractions is to make them have the same denominator. Then their ratio is the ratio of their numerators.

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8 is subtracted from one-fourth of n
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8-1/4n is the answer to this
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If the average weight of sophomore boys in Arizona is 140 pounds with a standard
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Light

Step-by-step explanation:

He is below the standard deviation limits for average or normal.

5 0
3 years ago
*URGENT*TEST TOMORROW*
Luden [163]

Answer:

"Dominic lived in Spain for 13 months and Columbia for 7 months."

Step-by-step explanation:

let months stayed in spain be "s" and months stayed in columbia be "c"

We can write 2 equations.

Since, lived in Spain and Columbia for a total of 20 months, we can write:

s + c = 20

Also, since 120 words per month in Spain and 150 words per month in Columbia for a total of 2610 new words, we can write:

120s + 150c=2610

Solving first for s:

s = 20 - c

Putting in 2nd and solving:

120(20 - c) + 150c = 2610

2400 - 120c + 150c = 2610

30c = 210

c = 7

Now,

s = 20 - c = 20 - 7 = 13

So

"Dominic lived in Spain for 13 months and Columbia for 7 months."

5 0
3 years ago
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A group of students is collecting books to add to their librarby. The table shows the number of books in the librarby after 1, 3
Grace [21]

Answer:

(7,48)

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the books go up by ten  and the days go up by 2

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3 years ago
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