2 years ago

Find the value of x that will make A||B A- 2x + 50 5x - 80 B- x = [?]

Mathematics

2 answers:

LenKa [72]2 years ago

8 0

Answer:

Step-by-step explanation:

If A||B then the sum of given angles must be equal to 180°

2x + 5 + 5x - 80 = 180 add like terms

7x - 75 = 180 subtract 75 from both sides

7x = 105 divide both sides by 7

x = 15

valkas [14]2 years ago

4 0

Answer:

Step-by-step explanation:

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lesya692 [45]

Answer:

1st option

Step-by-step explanation:

To find the difference of the given matrices, we just need to subtract the corresponding elements of the two matrices as shown below:

$\left[\begin{array}{cc}-4&8\\3&12\end{array}\right] -\left[\begin{array}{cc}2&1\\-14&15\end{array}\right] \\\\ \\ =\left[\begin{array}{cc}-4-2&8-1\\3-(-14)&12-15\end{array}\right]\\\\ \\ =\left[\begin{array}{cc}-6&7\\17&-3\end{array}\right]$

Thus, 1st option gives the correct answer

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Answer:

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Step-by-step explanation:

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2 years ago

F(x) = -3x – 2<br> g(x) = 2x + 5<br> Find (f*g)(5)

antiseptic1488 [7]

Answer:

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2 years ago

How to do this question

Tema [17]

Answer:

$f(8) = \underline{5}$

Step-by-step explanation:

We can see it on the given table of values.

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alexandr1967 [171]

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Step-by-step explanation:

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