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mafiozo [28]
3 years ago
11

Help please help please

Mathematics
2 answers:
mestny [16]3 years ago
5 0

Answer:

12.57 in⠀⠀⠀⠀⠀

Rom4ik [11]3 years ago
5 0

Answer:

12.56 inches

Step-by-step explanation:

A= pie x r^2

= 3.14 × 2^2

= 3.14 × 4

= 12.56

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Step-by-step explanation:

C. outside 45 degrees

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Many users of survey data, where numerical scales are associated with categories (i.e. 1=disagree, 2=neutral, 3=agree), treat it
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Step-by-step explanation:

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6. h(x) = 10x – 4, find h(0.5)
e-lub [12.9K]

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Step-by-step explanation:

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6 0
2 years ago
Read 2 more answers
Arrange the entries of matrix AB in increasing order of their values.<br> Okay
zubka84 [21]

Answer:

C₂₃ = -186

      {}    ↓

C₁₃ = -32

      {}    ↓

C₃₁ = 6

      {}    ↓

C₁₁ = 27

      {}    ↓

C₂₁ = 28

      {}    ↓

C₃₃ = 38

      {}    ↓

C₂₂ = 56

      {}    ↓

C₃₂ = 90

      {}    ↓

C₁₂ = 115

Step-by-step explanation:

The given matrices are;

A =  \left[\begin{array}{ccc}1&7&-1\\5&-2&-9\\-3&8&3\end{array}\right]      B = \left[\begin{array}{ccc}5&1&7\\3&15&-2\\-1&-9&25\end{array}\right]

The cross product of the matrices is found as follows;

A \cdot B =  \left[\begin{array}{ccc}1&7&-1\\5&-2&-9\\-3&8&3\end{array}\right] \times \left[\begin{array}{ccc}5&1&7\\3&15&-2\\-1&-9&25\end{array}\right]

C₁₁ = 1×5 + 7×3 + (-1) × (-1) = 27

C₁₂ = 1×1 + 7×15 + (-1)×(-9) = 115

C₁₃ = 1×7 + 7×(-2) + (-1)×25 = -32

C₂₁ = 5×5 + (-2)×3 + (-9) × (-1) = 28

C₂₂ = 5×1 + (-2)×15 + (-9)×(-9) = 56

C₂₃ = 5×7 + (-2)×(-2) + (-9)×25 = -186

C₃₁ = (-3)×5 + 8×3 + 3 × (-1) = 6

C₃₂ = (-3)×1 + 8×15 + 3×(-9) = 90

C₃₃ = (-3)×7 + 8×(-2) + 3×25 = 38

Therefore, we get;

A \cdot B =  \left[\begin{array}{ccc}1&7&-1\\5&-2&-9\\-3&8&3\end{array}\right] \times \left[\begin{array}{ccc}5&1&7\\3&15&-2\\-1&-9&25\end{array}\right] = \left[\begin{array}{ccc}27&115&-32\\28&56&-186\\6&90&38\end{array}\right]

In increasing order, we have;

C₂₃ = -186

      {}    ↓

C₁₃ = -32

      {}    ↓

C₃₁ = 6

      {}    ↓

C₁₁ = 27

      {}    ↓

C₂₁ = 28

      {}    ↓

C₃₃ = 38

      {}    ↓

C₂₂ = 56

      {}    ↓

C₃₂ = 90

      {}    ↓

C₁₂ = 115

7 0
2 years ago
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