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BaLLatris [955]
3 years ago
14

3. The matrices show the enrollment of boys and girls on the basketball, lacrosse, and soccer teams in two towns. Town A Town B

Boys Girls Boys Girls Basketball[84 76] Basketball [94 70] Lacrosse [72 88] Lacrosse [88 89] Soccer [96 100] Soccer [100 110] A. If we let matrix A be the matrix for Town A, what is the element a21, and what does it represent? B. If we let matrix B be the matrix for Town B, what is the address of the element that represents the number of girls enrolled in soccer in Town B? C. What is the matrix that results when you subtract matrix A from matrix B? D. Name the matrix you found in Part C matrix C. What is element c12, and what information does it tell you about the number of girls enrolled in basketball in Town B compared with Town A? E. What is the matrix that shows the enrollment in Town A after a 25% increase in enrollment in all sports and in both genders? (Hint: Find 1.25A.)
Mathematics
1 answer:
bazaltina [42]3 years ago
8 0
(a). The element a₂₁ is the number of boys enrolled in Lacrosse.

(b). The address is a₁₂.

(c). [196   174]
      [136   169]
      [214    242]

(d). The matrix represents the number of boys and girls from towns A and B enrolled in different sports classes.

(e). 1.125 A = [108   90  ]
                       [72     99  ]
                       [117   135]<span />
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3 years ago
Which type of transformation is described by (x, y)<br> -&gt;<br> + (x + 3, y — 2)?
creativ13 [48]

Answer:

(x, y) → (x+3, y-2) means Translation 3 units left and 2 units down.

Step-by-step explanation:

Given the rule of transformation:

(x, y) → (x+3, y-2)

If we move horizontally 3 units to the right, 3 is added to the x-coordinate of any given point, and then 2 units down.

In other words,

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For example,

Let say if we have the point A(4, 5)

Using the translation rule:

(x, y) → (x+3, y-2)

A(4, 5) → A'(4 + 3, 5 - 2) → A'(7, 3)

Therefore, the new position of A(4, 5) after translating 3 units left and 2 units down would be: A'(7, 3)

4 0
3 years ago
Which of the following expressions is equivalent to (x + 5) ^2
Karo-lina-s [1.5K]
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the expression that is equivalent to

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7 0
3 years ago
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aksik [14]

Answer:

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Step-by-step explanation:

Given:

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Assume number of week per year = 52

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⇒ Budget annual payroll = $9,000 × 52 × 0.36

⇒ Budget annual payroll = $168,480

3 0
3 years ago
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