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ad-work [718]
3 years ago
5

Can you ever use a calculator to determine if a number is rational or irrational?explain.

Mathematics
2 answers:
AysviL [449]3 years ago
8 0
Yes, for fractions you can multiply the denominator by the numerator. For square roots you can use the square root button.
malfutka [58]3 years ago
6 0
You can try


well, a number is rational if it can be writtten in form a/b where a and b are integers and b≠0

integers are like -4,-3,-2,-1,0,1,2,3,4


irrational numbers can't be written in form a/b like that with integers

so if we had 2/3, we're done, no need to use calculator
note: all releating deciamals can be written as a fraction and are therefor rational

you can use a calculator, but if it's in fraction form, no need to do that
sometimes a number repeats but you might not be able to see it if you use a calculator

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frosja888 [35]

Answer

8p∠-8

Step-by-step explanation:

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2 years ago
One-stray Problem Solving
anygoal [31]
A) 5000 m²
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Step-by-step explanation:
b) The remaining fence, after the two sides of length x are fenced, is 200-2x. That is the length of the side parallel to the building. The product of the lengths parallel and perpendicular to the building is the area of the playground:
A(x) = x(200 -2x)
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a) A(50) = 50(200 -2·50) = 50·100 = 5000 . . . . m²
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c) The equation makes no sense if either length (x or 200-2x) is negative, so a reasonable domain is (0, 100). For x=0 or x=100, the playground area is zero, so we're not concerned with those cases, either. Those endpoints could be included in the domain if you like.
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2 years ago
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Dvinal [7]

Answer:

1/25

Step-by-step explanation:

= 5^4/5^6

= 1/5^6-4

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hope it helps!

8 0
3 years ago
Read 2 more answers
How to solve −3/4n≤3.
mars1129 [50]

Answer:

n ≥ -4

Step-by-step explanation:

-3/4n ≤ 3

-4/3(-3/4n) ≤ 3(-4/3)

n ≥ -12/3

n ≥ -4

CHECK:

correct

-3/4(-4) ≤ 3

12/4 ≤ 3

3 = 3

correct

-3/4(5) ≤ 3

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-3.75 < 3

incorrect

-3/4(1) ≤ 3

-3/4 is not ≤ 3

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3 years ago
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VashaNatasha [74]

Answer:

1. 10:8 = 5:4 (simplest form)

2. 860:400 = 43:20 (simplest form)

3. 4415:1200 = 883:240 (simplest form)

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3 years ago
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