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Anastaziya [24]
3 years ago
9

What is the domain and range of f(x)=23+15x^2

Mathematics
1 answer:
Andreyy893 years ago
4 0
Domain: all real numbers, since no number can make this function undefined
Range: since this an upward opening parabola(because the quadratic coefficient is positive), and the minimum point is 23, the range is going to be any number equal or greater than 23.
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How does the area of the polygons compare to π? ( π is 3.14)
soldi70 [24.7K]

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You can find the area of a circle if you know the circle’s circumference by using these steps:

<span>1.         Divide the circumference by π to find the diameter of the circle.</span>

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5 0
3 years ago
Read 2 more answers
1.) The commuter trains on the Red Line for the Regional Transit Authority (RTA) in Cleveland, OH, have a waiting time during pe
alisha [4.7K]

Answer:

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X \sim Unif(a=0,b=8)

Where a and b represent the limits of the distribution.

b) f(x) = \frac{1}{8}= 0.125, a\leq x \leq b

And the height for this case would be 0.125

Step-by-step explanation:

Part a

For this case we define the random variable as X ="waiting time during peak hours" and we know that this distribution follows an uniform distribution:

X \sim Unif(a=0,b=8)

Where a and b represent the limits of the distribution.

Part b

For this case the density function would be given by:

f(x) = \frac{1}{8}= 0.125, a\leq x \leq b

And the height for this case would be 0.125

And f(x)= 0  for other case.

The cumulative distribution function would be given by:

F(x) = 0, x

F(x) = \frac{x-a}{b-a}= \frac{x}{8}, 0\leq x < 8

F(x) = 1, x\geq 8

3 0
3 years ago
1/4 of a number decreased by three is at least two
posledela

Answer:

¹/₄x - 3 ≥ 2

+ 3 + 3

4(¹/₄x) ≥ 4(5)

x ≥ 20

Step-by-step explanation:

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3 years ago
a groups of 210 children attended a school picnic. only 60 of the children ate. what fraction of the children ate?
Amiraneli [1.4K]
The answer is 60/210.
I hope I'm right
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