Please help Bsbsn’s x

Mathematics

1 answer:

kaheart [24]3 years ago

5 0

Answer:

B. a ⊥ d

Step-by-step explanation:

If lines "a" and "d" are in the same plane, they are perpendicular to each other. If not, there is no relationship between the lines.

Lines parallel to the same line are parallel to each other, so a║c. <em>In the same plane</em>, a line perpendicular to one of two parallel lines is also perpendicular to the other. (For example, one side of a rectangle is perpendicular to both of the adjacent sides, which are parallel to each other.)

The appropriate choice is ...

a ⊥ d

<em>In 3 dimensions, ...</em>

Consider a cube. A given edge will be perpendicular to both of the two edges it meets at a corner.

It will not intersect (has no "perpendicular" relationship to) either of the edges parallel to those that meet at the corner at the other end of the space diagonal.

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Answer:

2. $\left[\begin{array}{ccc}1&4\\0&3\\\end{array}\right]$

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Step-by-step explanation:

2. This matrix is easy, as it just requires addition.

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3. This matrix requires for the matrices to be multiplied first, then added.

$\left[\begin{array}{ccc}9&-15&18\\-27&15&-9\\\end{array}\right]$ + $\left[\begin{array}{ccc}-12&36&42 \\12& -6 & -36 \\\end{array}\right]$ = $\left[\begin{array}{ccc}-3&21&60\\-15&9&-45\\\end{array}\right]$

4. Here we can add the last 2 matrices to find x.

$\left[\begin{array}{ccc}2&-8\\-4&2\\\end{array}\right]$ + $\left[\begin{array}{ccc}4&-6\\2&-8 \\\end{array}\right]$ = $\left[\begin{array}{ccc}6&-14\\-2&-6\\\end{array}\right]$

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andreyandreev [35.5K]

Answer:

V plus 5 is four

Step-by-step explanation:

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