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Sonbull [250]
2 years ago
13

If A ={2,4,6,8} B = {5,7,1,9}. L et R be the relation is less from A to B. Find domain (R) AND RANGE (R) ​

Mathematics
1 answer:
nignag [31]2 years ago
3 0

<u>EXPLANATION</u><u>:</u>

Given sets are A = { 2,4,6,8}

and B = {5,7,1,9}

Given relation is R is the relation less from A to B

⇛{(2,5),(2,7),(2,9), (4,5),(4,7),(4,9),,(6,7),(6,9),(8,9)}

Domain of R = {2,4,6,8}

Range of R = {1,5,7,9}

Hope this helps!

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Answer:

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Step-by-step explanation:

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3 years ago
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The face of a clock has a circumference of 63 in. What is the area of the face of the clock?
ryzh [129]

Answer:

The area of the clock = 315.41\ inch^{2}

Step-by-step explanation:

We have been given the face of the clock that is 63\ in

So that is also the circumference of the clock.

Since the clock is circular in shape.

So 2\pi(r)=63\ inch

From here we will calculate the value of radius (r) of the clock that is circular in shape.

Then 2\pi(r)=63\ inch =\frac{63}{2\pi} = 10.02\ in

Now to find the area of the clock we will put this value of (r) in the equation of area of the circle.

Now \pi (r)^{2}=\pi(10.02)^{2}=315.41\ in^{2}

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6 0
3 years ago
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Recall that m(t) = (1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500g sample of phosphorus-32 decays
katrin2010 [14]

The question is incomplete, here is the complete question:

Recall that m(t) = m.(1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500 g sample of phosphorus-32 decays to 356 g over 7 days. Calculate the half life of the sample.

<u>Answer:</u> The half life of the sample of phosphorus-32 is 14.28days^{-1}

<u>Step-by-step explanation:</u>

The equation used to calculate the half life of the sample is given as:

m(t)=m_o(1/2)^{t/h}

where,

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m_o = initial amount of the sample = 500 g

t = time period = 7 days

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Putting values in above equation, we get:

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