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aleksandr82 [10.1K]

3 years ago

10

Which number is not a rational number? -5 times 4/11 root31 7.608 18.46 continuing

2 answers:

Kisachek [45]3 years ago

4 0

The rules of rational numbers is that if it repeats or ends then it’s rational. Answer A is wrong because -5*4/11 equals -1.81818181... it keeps repeating the same numbers making it rational. Answer C, 7.608 ends, meaning no numbers come after the last one in this case it’s 8. Answer D I think would be wrong since it says 18.46 continuing (I assume it’s 18.46464646...) meaning it repeats which leaves us with the root of 31 which is 5.56776436... the number don’t stop and they don’t repeat making it irrational. So if another question comes up asking if it’s rational or irrational just ask yourself does it repeat or end? Or does it go on forever like PI.

rewona [7]3 years ago

3 0

I think its the second one, the answer does not have a definite and, and cannot be put into a ratio.

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Read 2 more answers

If f(x) is an exponential function where f(-1.5) 26 and

mariarad [96]

Answer:

$f(10) = 1147.25$

Step-by-step explanation:

Given

$f(-1.5) = 26$

$f(5.5) = 7$

Required

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An exponential function is represented as:

$f(x) = ab^x$

$f(-1.5) = 26$ impleies that:

$26 = ab^{-1.5}$ --- (1)

$f(5.5) = 7$ implies that

$7 = ab^{5.5}$ --- (2)

Divide (2) by (1)

$26/7 = ab^{-1.5}/ab^{5.5}$

$3.71429 = b^{-1.5+5.5}$

$3.71429 = b^{4}$

Take 4th root

$b = 1.39$

Substitute $b = 1.39$ in $26 = ab^{-1.5}$

$26 = a * 1.39^{-1.5}$

$26 = a * 0.6102$

Solve for (a)

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Answer:

The yield to maturity is 6.3974%

Step-by-step explanation:

The computation of the yield to maturity is as follows

Given that

NPER = 18 × 2 = 36

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PV = $1,035.25

FV = $1,000

The formula is shown below:

=RATE(NPER;PMT;-PV;FV;TYPE)

The present value comes in negative

AFter applying the above formula, the yield to maturity is

= 3.1987% × 2

= 6.3974%

Hence, the yield to maturity is 6.3974%

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