Calculate and give your answer its simplest form. 8 /7 X 7/8 Your answer

Mathematics

1 answer:

Andru [333]3 years ago

4 0

Answer:

1 I believe if your asking in in simplified form and if 8/7 and 7/8 are multiplied

Step-by-step explanation:

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Simplify $\sqrt[3]{\frac{9\sqrt{5}}{2\sqrt{3}}\cdot\frac{5\sqrt{2}}{8\sqrt{2}}}$ and rationalize the denominator. The result can

Alecsey [184]

Answer:

15+6+2=23

Step-by-step explanation:

$\sqrt[3]{\frac{9\sqrt{5}}{2\sqrt{3}}\cdot\frac{5\sqrt{2}}{8\sqrt{2}}}\\=\sqrt[3]{\frac{9\sqrt{5}}{2\sqrt{3}}\cdot\frac{5}{8}}\\=\sqrt[3]{\frac{45\sqrt{5}}{16\sqrt{3}}}\\=\sqrt[3]{\frac{45\sqrt{15}}{16}}\\=\sqrt[3]{\frac{3\cdot\sqrt{15^3}}{16}}\\=\frac{\sqrt[3]{3}\cdot\sqrt{15}}{2\cdot\sqrt[3]{2}}\\=\frac{\sqrt[3]{6}\cdot\sqrt{15}}{2}$

we want it in the form of $\frac{\sqrt{a}\sqrt[3]{b}}{c}$ , so a = 15, b=6, c=2

also this is the minimum possible value, as we cannot simplify it further

7 0

2 years ago

Can you please help me solve these systems?

sveta [45]

1)
11x+5y=20
2x+5y=-25

multiply the second equation by - 1 and add the result with the first equation:

11x + 5y = 20
- 2x - 5y = 25
-------------------
9x = 45

=> x = 45 / 9

=> x = 5

Replace in 2x+5y=-25

=> 2(5) + 5y = - 25

5y = - 25 - 10

5y = - 35

y = - 35 / 5

y = - 7

2)

3x+7y=-21

3x-7y=63

Add the two equations:

3x + 3x + 0 = - 21 + 63

6x = 42

=> x = 42 / 6

=> x = 7

Replace in 3x-7y=63

3(7) - 7y = 63

=> 7y = 21 - 63

=-> 7y = - 42

=> y = - 42 / 6

=> y = - 7

5 0

4 years ago

Bro this makes no sense can someone explain

pantera1 [17]

Answer:

$x=110^o$

Step-by-step explanation:

If AB = AD, then you have that triangle ABD is an isosceles triangle (it has two equal sides). If it is isosceles, then the angles opposite to angles those equal sides must be equal. Then angle ADB = $35^o$ . and by the property of all internal angles of a triangle have to add to $180^o$ , we get that: