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Rasek [7]
3 years ago
11

PLZ HELP ME WITH THIS QUESTION!

Mathematics
1 answer:
Dima020 [189]3 years ago
4 0

Answer:

B

Step-by-step explanation:

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Which number produces an irrational number when multiplied by 0.4
vovikov84 [41]
Assuming 0.4 is in fact, 2 divided by 5 (and not an approximation of some number that would require an infinite amount of decimal places to exactly express), then multiplication by 0.4 is the same as multiplying by 2 and dividing by 5.

This means that multiplying any rational number by 2/5 will yield another rational number (as given x/y as an input, where x and y are integers, and multiplying it by 2/5 giving 2x/5y, will mean that 2x and 5y are also integers, and the result is also rational)

If we multiply an irrational number by 2/5, however, the result will be irrational.

So your answer is any number not in the set of rational numbers, multiplied by 0.4, will yield an irrational number.

3 0
3 years ago
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3∣a−b∣ if a=−9 and b=3
yKpoI14uk [10]

Answer:

36 because the absolute value of -9-3 is 12, and then 12 times 3 is 36

8 0
2 years ago
What are extremes in math with an example so I can understand it better?
anzhelika [568]
Y=x2 the extreme would be x=0
3 0
3 years ago
Pls answer will mark Brainy m
Tpy6a [65]

Answer:

d(4) = 64

Step-by-step explanation:

Using the recursive formula

d(n) = d(n - 1) + 17 with d(1) = 13, then

d(2) = d(1) + 17 = 13 + 17 = 30

d(3) = d(2) + 17 = 30 + 17 = 47

d(4) = d(3) + 17 = 47 + 17 = 64

8 0
3 years ago
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PLEASE HELP ME WITH THIS ASAP !!
pishuonlain [190]

Answer:

132cm^2

Step-by-step explanation:

SA of square based pyramid:

SA = 2bs + b^2

b = base

s = slant height

-> 2(6)(8) + 6^2

-> 96 + 36

= 132cm^2

7 0
2 years ago
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