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qaws [65]
3 years ago
5

In a mathematics class, half of the students scored 87 on an achievement test. With the exception of a few students who scored 5

2, the remaining students scored 71. Which of the following statements is true about the distribution of scores?
Mathematics
1 answer:
Arisa [49]3 years ago
7 0

Answer:the mean is greater than the median

Step-by-step explanation:

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Show that the transformation T defined by<br>T(x1, x2) = (2x1 - 3x2, X1+4, 5x2) is not linear.<br>​
erastovalidia [21]

Let <em>u</em> = (1, 0) and <em>v</em> = (0, 1). Then

<em>T</em> (<em>u</em>) = (2*1 - 3*0, 1 + 4, 5*0) = (2, 5, 0)

<em>T</em> (<em>v</em>) = (2*0 - 3*1, 0 + 4, 5*1) = (-3, 4, 5)

=>   <em>T</em> (<em>u</em>) + <em>T</em> (<em>v</em>) = (-1, 9, 5)

but

<em>T</em> (<em>u</em> + <em>v</em>) = <em>T</em> (1, 1) = (2*1 - 3*1, 1 + 4, 5*1) = (-1, 5, 5)

=>   <em>T</em> (<em>u</em> + <em>v</em>) ≠ <em>T</em> (<em>u</em>) + <em>T</em> (<em>v</em>)

which means <em>T</em> does not preserve addition, so it is not linear.

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3 years ago
What is the value of x in the function f (x)=4/3x+6 when f (x) = 22?<br> x=?
mamaluj [8]

Answer:

x=12\\

Step-by-step explanation:

f(x)=22\\\\\frac{4}{3}x +6=22\\\\\frac{4}{3}x=16\\\\x= 12

8 0
3 years ago
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