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3 years ago

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Given that ab = x, evaluate the following: c 2a3b+a2b+ab

1 answer:

Mrrafil [7]3 years ago

4 0

It will be ......
.......

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PLEASE HELP!!!!! What is the value of x in the matrix equation below?

Brums [2.3K]

The given matrix equation is,

$1.5\left[\begin{array}{cc}x&6\\8&4\end{array}\right] +y\left[\begin{array}{cc}1&4\\3&2\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right]$ .

Multiplying the matrices with the scalars, the given equation becomes,

$\left[\begin{array}{cc}1.5x&9\\12&6\end{array}\right] +\left[\begin{array}{cc}y&4y\\3y&2y\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right] \\$

Adding the matrices,

$\left[\begin{array}{cc}1.5x+y&9+4y\\12+3y&6+2y\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right] \\$

Matrix equality gives,

$1.5x+y=z\\ 9+4y=z\\ 12+3y=6z\\ 6+2y=2$

Solving the equations together,

$y=-2\\ 3y-1.5x=9\\ -1.5x=9+6\\ x=-10$

We can see that the equations are not consistent.

There is no solution.

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Every two out of three kids sang at the talent show. What percent of the kids did not sing at the talent show? (round)

kvv77 [185]

66.7 %
convert to decimal the multiply by 100

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What is the measure of Angles are not necessarily drawn to scale.

miskamm [114]

X is 58° (your welcome:)

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What is the distance between 4 2/3 and -5 1/3

Brrunno [24]

Answer:

7

Step-by-step explanation:

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Sphinxa [80]

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They sold 67.50 in total

Step-by-step explanation:

If each of them sold 15 boxes for 2.25 then both of them got 33.75 each then you add it and that gives you 67.50

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