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Elena-2011 [213]
2 years ago
11

Simplify.12x • 3x15 x15 x236 x236 x

Mathematics
1 answer:
sdas [7]2 years ago
6 0

In order to simplify this expression, we need to multiply the numeric values together and the variables together.

So we have:

\begin{gathered} 12x\cdot3x\\ \\ =(12\cdot3)\cdot(x\cdot x)\\ \\ =36x^2 \end{gathered}

Therefore the correct option is the third one.

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Step-by-step explanation:

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Hi! I've tried this problem a couple times but am still stumped :( Can you help?!
aniked [119]

ANSWER:

X\text{ = }\begin{bmatrix}{12} & {-4} & {-2} \\ {-8} & {-13} & {8} \\ {8} & {15} & {18}\end{bmatrix}

EXPLANATION:

Given:

U\text{ = }\begin{bmatrix}{1} & {3} & {-5} \\ {2} & {14} & {11} \\ {-8} & {0} & {5}\end{bmatrix}\text{           V =}\begin{bmatrix}{13} & {1} & {-7} \\ {-6} & {1} & {9} \\ {0} & {15} & {23}\end{bmatrix}

Since U and V are Matrices with equal dimensions(3 x 3 matrix), and

X + U = V.

To solve for X, we have:

X = V - U

\begin{gathered} X\text{ = V - U} \\ X\text{ = }\begin{bmatrix}{13-1} & {-1-3} & {-7-(-5)} \\ {-6-2} & {1-14} & {19-11} \\ {0-(-8)} & {15-0} & {23-5}\end{bmatrix}=\text{ }\begin{bmatrix}{12} & {-4} & {-2} \\ {-8} & {-13} & {8} \\ {8} & {15} & {18}\end{bmatrix} \end{gathered}X\text{ = }\begin{bmatrix}{12} & {-4} & {-2} \\ {-8} & {-13} & {8} \\ {8} & {15} & {18}\end{bmatrix}

6 0
1 year ago
Of the candy, 1/2 are skittles. 1/4 of the remaining pieces are Starbursts and 3/4 of the rest are life savers. The remaining pi
juin [17]

Answer:

The percentage of the total pieces are sour patch kids = \frac{1}{3} × 100

   = 33.33 %

Step-by-step explanation:

( \frac{1}{2}) x +( \frac{1}{4}) x +( \frac{3}{4})  x = 1

LCM = 4

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∴ x = \frac{2}{3}

The remaining piece are sour patch kids

so  1 -( \frac{2}{3})

    = \frac{1}{3}

The percentage of the total pieces are sour patch kids = \frac{1}{3} × 100

   = 33.33 %

5 0
4 years ago
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