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4 years ago

Evaluate for x = 2 and y = 3 x^2y^-3/x^-1y

Mathematics

1 answer:

Tasya [4]4 years ago

6 0

First plug them all in for 2^6^-3/2^-3

Then solve to get. 134217728

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Which of the following statements are true? Select all that apply.

Tom [10]

Answer: The statements in options 2 and 4 are true.

Explanation:

The LCM of two numbers is the smallest number that is multiple of both numbers.

The factor of 8 and 12 are,

$8=2\times 2\times 2$

$12=2\times 2\times 3$

Since 2 and 2 are common in both but 2 and 3 are not same, therefore the L.C.M. of 8 and 12 is,

$L.C.M.(8,12)=2\times 2\times 2\times 3=24$

Therefore the statement in option 1 is incorrect.

The factor of 6 and 9 are,

$6=2\times 3$

$9=3\times 3$

Since 3 is common in both but 2 and 3 are not same, therefore the L.C.M. of 6 and 9 is,

$L.C.M.(6,9)=2\times 3\times 3=18$

Therefore the statement in option 2 is correct.

The factor of 11 and 4 are,

$11=1\times 11$

$4=2\times 2$

Since all factor are different, therefore the L.C.M. of 11 and 4 is,

$L.C.M.(11,4)=1\times 11\times 2\times 2=44$

Therefore the statement in option 3 is incorrect.

The factor of 9 and 10 are,

$9=1\times 9$

$10=2\times 5$

Since all factor are different, therefore the L.C.M. of 9 and 10 is,

$L.C.M.(9,10)=1\times 9\times 2\times 5=90$

Therefore the statement in option 4 is correct.

4 0

3 years ago

Need some help on this question<br><br> Will give brainliest!!<br> Thanks

Klio2033 [76]

AD => Cos 20 = 12.6/H => H = 12.6/Cos 20 = 13.4cm

AB => √13.4^2 - 12.6^2 = 4.6 cm

BC = √19.3^2 - 12.6^2 = 14.6 cm

AC = 14.6 + 4.6 = 19.2 cm

7 0

4 years ago

Read 2 more answers

43.77 as a mixed number in simplest form

valina [46]

First you have to take the whole number (43) and then take the decimal and put it over 100 (77/100).

5 0

3 years ago

PLEASEEEEEEE HELP WITH THIS

bulgar [2K]

I think the answer is B. I hope I helped.

7 0

4 years ago

Read 2 more answers

Please help me I’m begging you please

AysviL [449]

Y=6 because if you multiply 2/3 by 6 you get 12/3 and reducing it, that becomes 4. If you did 4 then the answer would be 8/3 and reducing that is 2 2/3

5 0

3 years ago