Question

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Answer 1

Step-by-step explanation:

it is easy just see what I have done..

I hope that my answer will be helpful to you.

Answer 2

Answer:

The answer is -

Step-by-step explanation:

11.

To verify (-21) X [(-4) + (-6)] = [(-21) X (-4)] + [(-21) X (-6)]

Verification

(-21) X [(-4) + (-6)] = [(-21) X (-4)] + [(-21) X (-6)]

(-21) X [-10] = [84] + [126]

210 = 210

L.H.S = R.H.S

Hence verified

Actually R.H.S i.e. [(-21) X (-4)] + [(-21) X (-6)] is distributive property used for L.HS of multiplication that is multiplying the numbers inside the bracket one by one with the number with outside the bracket

So you can verify through writing that R.H.S is distributive property of multiplication used for finding the product easily of L.H.S

12.

= $\frac{1}{2}$ + 2$\frac{3}{4}$

Covert the mixed fraction into a simple fraction

That is,

2$\frac{3}{4}$ = $\frac{2 X 4 + 3}{4}$

    = $\frac{11}{4}$

CONTINUE

= $\frac{1}{2}$ + 2$\frac{3}{4}$

= $\frac{1}{2}$ + $\frac{11}{4}$

Now, take L.C.M of the denominators 2 and 4

The L.C.M is 4

 $\frac{1}{2}$ X  $\frac{2}{2}$ and  $\frac{11}{4}$ X  $\frac{1}{1}$ [To equal the denominators]

$\frac{2}{4}$ and  $\frac{11}{4}$

So,

= $\frac{1}{2}$ + $\frac{11}{4}$

= $\frac{2}{4}$ + $\frac{11}{4}$

= $\frac{2 + 11}{4}$

= $\frac{13}{4}$

HOPE THE ANSWER WILL BE A GREAT PATH OF LEARNING, MATE

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