Question

Плз хелп(х-умножить) 1)6/7х(-4/7)2)-4/7х7/93)-6х(-5/24)4)-6/19х(-57)5)-9 3/5 х(-10/21)​

Answer 1

Ответ:

1)-24/7

2)-4/9х

3)5/4х

4)18

5)18/7х

Answer 2

Sure, I'd be happy to help you with these multiplication problems! Let's solve each of them step by step:

1. $\frac{6}{7} \times \left(-\frac{4}{7}\right)^2$ First, square the fraction $-\frac{4}{7}$: $\left(-\frac{4}{7}\right)^2 = \frac{16}{49}$ Now, multiply $\frac{6}{7}$ by $\frac{16}{49}$: $\frac{6}{7} \times \frac{16}{49} = \frac{96}{343}$

2. $-\frac{4}{7} \times \frac{7}{9}$ Multiply the two fractions directly: $-\frac{4}{7} \times \frac{7}{9} = -\frac{28}{63} = -\frac{4}{9}$

3. $-6 \times \left(-\frac{5}{24}\right)^4$ First, raise the fraction $-\frac{5}{24}$ to the power of 4: $\left(-\frac{5}{24}\right)^4 = \frac{625}{331776}$ Now, multiply $-6$ by $\frac{625}{331776}$: $-6 \times \frac{625}{331776} = -\frac{3125}{55329}$

4. $-\frac{6}{19} \times (-57)^5$ Calculate the fifth power of $-57$: $(-57)^5 = -1360488961$ Now, multiply $-\frac{6}{19}$ by $-1360488961$: $-\frac{6}{19} \times (-1360488961) = 361680816$ (approximately)

5. $-\frac{9}{5} \times \left(-\frac{10}{21}\right)$ Multiply the two fractions directly: $-\frac{9}{5} \times \left(-\frac{10}{21}\right) = \frac{30}{35} = \frac{6}{7}$

So, the results of the given multiplication problems are:

1. $\frac{6}{7} \times \left(-\frac{4}{7}\right)^2 = \frac{96}{343}$
2. $-\frac{4}{7} \times \frac{7}{9} = -\frac{4}{9}$
3. $-6 \times \left(-\frac{5}{24}\right)^4 = -\frac{3125}{55329}$
4. $-\frac{6}{19} \times (-57)^5 = 361680816$ 0 0