-11 2/3 * (-4 1/5)=

Mathematics

2 answers:

WARRIOR [948]3 years ago

5 0

Answer:

Step-by-step explanation:

Simplify:

-11 2/3 * (-4 1/5)=
11 2/3 * 4 1/5 =
35/3 * 21/5 =
35/5*21/3 =
7*7 =
49

Solnce55 [7]3 years ago

3 0

$\large\blue{\tt Given :-}$

$\to\tt - 11\frac{2}{3} (-4\frac{1}{5})$

$\large\orange{\tt To \: Find :-}$

$\to\tt Simplify \: the \: sum$

$\large\green{\tt Solution :-}$

$\tt -11\frac{2}{3} (-4\frac{1}{5})$

$=\tt 11\frac{2}{3} \times 4\frac{1}{5}$

$=\tt\frac{35}{3} \times \frac{21}{5}$

$= \tt\frac{\cancel{35}}{\cancel5} \times \frac{\cancel{21}}{\cancel3}$

$= \tt 7 \times 7$

$= \underline{\boxed{\blue{\tt 49}}}$

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Evgen [1.6K]

Answer:

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

3. $\left[\begin{array}{ccc}-3&21&60\\-15&9&-45\\\end{array}\right]$

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

Step-by-step explanation:

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

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

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.

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