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erastovalidia [21]
3 years ago
12

Need help ASAP please :)

Mathematics
1 answer:
JulsSmile [24]3 years ago
7 0

Answer:

a(6) = 2 \sqrt{3} , b(10) = 15 \sqrt{2}

Step-by-step explanation:

A. a(x) = \sqrt{2x}

a(6) = \sqrt{2(6)}

a(6) = \sqrt{12}

a(6) = \sqrt{4}\sqrt{3}

a(6) = 2 \sqrt{3}

B. b(x) = 3 \sqrt{5x}

b(10) = 3 \sqrt{5(10)}

b(10) = 3 \sqrt{50}

b(10) = 3 \sqrt{25} \sqrt{2}

b(10) = 3 x 5 \sqrt{2}

b(10) = 15 \sqrt{2}

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Natasha2012 [34]
Hope this isn't too confusing

All of the numbers have different shortcuts.
1. Yes. Divisible by 4: if last two digits are divisible by 4 then the whole number is yes)
2. No. Divisible by 6: it must be even and when you add them up, (44) it must be divisible by 3 (no, 44 is not divisible by 3)
3. Divisible by 8: ( last 3 numbers are divisible by 8 (312) = 39 ( yes it is)
4 Yes. Divisible by 11: ( sum of digits at odd places and sum of digits at even spaces,is either 0 or divisible by 11) yes, 278949. (2+8+9) + (7+9+9)= 19 + 25 = 44 and 44 is divisible by 11)
5. No. Divisible by 12 (divisible by 3 and 4, sum of digits is divisible by 3 ; and last 2 digits divisible by 4: 87654395 : 52/3= 18 (yes) 95/4(no) this number not divisible by 12
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8 0
3 years ago
If x^2 + 1/x^2 = 7 , find the value of x^3 + 1/x^3 and x^4 + 1/x^4
Maksim231197 [3]

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2 years ago
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4 0
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Read 2 more answers
Answer for number 1?
Rufina [12.5K]

Answer:

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Step-by-step explanation:

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hope that helps

pls mark brainliest

8 0
3 years ago
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