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Harrizon [31]
2 years ago
9

Which of the expressions is rational

Mathematics
1 answer:
miv72 [106K]2 years ago
6 0

Answer:

the third one

Step-by-step explanation:

the square root of 25 is 5. 5+2 = 7.

this is a rational number (the set of all integers and fractions).

the other 2 portions contain at least one element that is not rational. and so the sum with such a number is not rational.

45 and 7 are no square numbers, and therefore the square root of these numbers contains a neverending chain of digits after the decimal point without having any repeating pattern. these are real numbers but not rational numbers.

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Help me with this please
Reika [66]

Answer:

$2,459.21

Step-by-step explanation:

(see attached for reference)

recall that the formula for compound interest is:

A = P [ 1 + (r/n)^ (nt) ]

where,

A = Final amount ( we are asked to find this)

P = principal amount = given as $2,340

r = Annual Interest Rate = given as 5% = 0.05

n = number of times compounded in a year = 4 (compounded quarterly)

t= time = 1 year

Substituting the values into the equation,

A = P [ 1 + (r/n)^ (nt) ]

A = 2,340 [ 1 + (0.05/4)^ (4·1) ]

A = $2,459.21

6 0
3 years ago
What's -2 3/4 × -1/5 ?
Maslowich
The answer to this question is:-2.15
6 0
3 years ago
Any help? I'm struggling.
Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

a=-7

r=21/-7=-3

a_{15}=a r^{n-1}=-7(-3)^{15-1}=-7(-3)^{14}=-33480783

4 0
2 years ago
A factory needs to produce 1,800 jars of peanut butter on a certain day.
finlep [7]

Answer:

d

Step-by-step explanation:

because in 2 they make 600 and 600 times 3 is 1,800 then do 2 times 3 witch is 6 so 6 hours after 10:30 is 3:30. I hope that makes sense <3

7 0
2 years ago
Is the decimal for 4/3 a repeating decimal? Explain
Butoxors [25]

Answer:

Step-by-step explanation:

Divide 4 by 3 and you will get 1333333333... as an answer.It is a repeating decimal . Place a line over the second 3  to show that it is a repeating decimal.

4 0
3 years ago
Read 2 more answers
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