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3 years ago

Which pair of number has the same greatest common factor as 48 and 78

Mathematics

1 answer:

Leno4ka [110]3 years ago

7 0

Answer:

Step-by-step explanation:

48=2×2×2×2×3

78=13×2×3

48 has 5 factors.

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Let Upper A equals left bracket Start 2 By 2 Matrix 1st Row 1st Column negative 2 2nd Column 4 2nd Row 1st Column 1 2nd Column 3

Anastaziya [24]

Answer:

See explanation

Step-by-step explanation:

Given:

$A=\left[\begin{array}{cc}-2&4\\1&3\end{array}\right]$

$B=\left[\begin{array}{cc}-2&1\\3&7\end{array}\right]$

A. Find AB:

$AB=\left[\begin{array}{cc}-2&4\\1&3\end{array}\right]\cdot \left[\begin{array}{cc}-2&1\\3&7\end{array}\right]=\left[\begin{array}{cc}-2\cdot (-2)+4\cdot 3&-2\cdot 1+4\cdot 7\\1\cdot (-2)+3\cdot 3&1\cdot 1+3\cdot 7\end{array}\right]=\left[\begin{array}{cc}16&26\\7&22\end{array}\right]$

B. Find BA:

$BA=\left[\begin{array}{cc}-2&1\\3&7\end{array}\right]\cdot \left[\begin{array}{cc}-2&4\\1&3\end{array}\right]=\left[\begin{array}{cc}-2\cdot (-2)+1\cdot 1&-2\cdot 4+1\cdot 3\\3\cdot (-2)+7\cdot 1&3\cdot 4+7\cdot 3\end{array}\right]=\left[\begin{array}{cc}5&-5\\1&33\end{array}\right]$

C. Answers are not the same

D. Matrices multiplication is not commutastive in general, so

$AB\neq BA$

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3 years ago

How do you simplify without using a calculator (-5)(7)+4×5

Evgesh-ka [11]

Answer:

-15 Is the answer

Step-by-step explanation:

(-5)(7)+4×5

= -15

(-5)(7) + 4×5 = -15/1 = -15

Multiple: -5 * 7 = -35

Multiple: 4 * 5 = 20

Add: the result of step No. 1 + the result of step No. 2 = -35 + 20 = -15

Hope this helps.

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1 year ago

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xeze [42]

Tan<E = 3/3.32402798107 = <span>1.10800932702

</span>

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2 years ago

Consider the equation and its solution.

expeople1 [14]

Answer:

<h2>D. division property of equality</h2>

Step-by-step explanation:

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2 years ago

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DIA [1.3K]

Complementary angles

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2 years ago

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