3 years ago

Which of the following sets of ordered pairs is a function?

Mathematics

1 answer:

Ulleksa [173]3 years ago

8 0

Answer:

(1,5) (2,6) (3,7) (4,8)

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bogdanovich [222]

Answer:

You can't solve it , the equation has to equal something

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Is x^2 + 1 a polynomial

ki77a [65]

Answer: Answer: x^2 - 1 is not a polynomial as after simplifying it there will be no variable.

Step-by-step explanation:

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3 years ago

A sample of tritium-3 decayed to 94.5% of its original amount after a year.

Zolol [24]

(a) If $y(t)$ is the mass after $t$ days and $y(0) = A$ then $y(t) = Ae^{kt}.$

$y(1) = Ae^k = 0.945A \implies e^k = 0.945 \implies k = \ln 0.945$

$\text{Then } Ae^{(\ln 0.945)t} = \frac{1}{2}A\ \Leftrightarrow\ \ln e^{(\ln 0.945)t} = \ln \frac{1}{2}\ \Leftrightarrow\ ( \ln 0.945) t = \ln \frac{1}{2} \Leftrightarrow \\ \\
t = - \frac{\ln 5}{\ln 0.945} \approx 12.25 \text{ years}$

(b)
$Ae^{(\ln 0.945) t} = 0.20 A \ \Leftrightarrow\ (\ln 0.945) t \ln \frac{1}{5}\ \implies \\ \\
t = - \frac{\ln 5}{\ln 0.945} \approx 28.45\text{ years}$

3 0

3 years ago

PLS HELP WILL GIVE BRAINIEST! You are flying in an airplane that has 2 engines. The engines individually have a success rate of

Salsk061 [2.6K]

Answer:

.01%*

Step-by-step explanation:

Individually, they both have a rate of failure of 1%.

.01 x .01 = .0001

Therefore they have a combined probability of failure of .01%

*Disclaimer!!

I am not the best at this area in math so I would still reference against someone else's answer, but this is my best effort :)

4 0

3 years ago

Pls help as soon as possible

alexgriva [62]

Answer:26 last one 25 first and 3 middle

Step-by-step explanation:

6 0

2 years ago