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vichka [17]
2 years ago
10

Is pi + 10 a rational number?

Mathematics
2 answers:
Lisa [10]2 years ago
8 0

Answer:

No

Step-by-step explanation:

pi is not a rational number

Troyanec [42]2 years ago
7 0

Answer:

No, it's not a rational number

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1. Indicate whether the number is divisible by 2, by 3, or by 5.(Note: Some numbers may be divisible by more than one of these n
aleksklad [387]

1.

a.2,3,5 450/2=225 450/3=150 450/5=90

b.none

c.2 only 18,652/2=9,326

d.5 only 455/5=91

2.

a.3 and 5

b.3 and 7

c.19

d.7 and 21

3.

a.30

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c.24

d.30

3 0
3 years ago
There are 32 girls and 18 boys in the chorus. what percent of the students in the chorus are girls?
klio [65]
So the total number of students is 50, and you want to find 32/50. and that is equal to 64%
7 0
3 years ago
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What is the equation of the parabola with vertex (6,7) and focus (7,7)?
Delicious77 [7]

Answer:

Step-by-step explanation:

If you plot these points on a coordinate plane, you see that they are on the same horizontal line, y = 7, with the focus 1 unit to the right of the vertex.  This means that the parabola is a sideways opening parabola, to the right, to be more specific.  That means that it has the basic vertex form

4p(x-h)=(y-k)^2

where p is the distance in units from the vertex to the focus, h is the first coordinate in the vertex, and k is the second coordinate in the vertex.  For us, p = 1, h = 6, and k = 7.  Now we will just fill the vertex form of the equation in with our values:

4(x-6)=(y-7)^2

We will solve this for x now by dividing each side by 4 and adding over the 6:

x=\frac{1}{4}(y-7)^2+6

4 0
3 years ago
?? Please help meeeeee!
slavikrds [6]
The engine would need three gallons of gas.
12/4=3
6 0
2 years ago
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The probability that Ariana is on time for a given class is 69 percent. If there are 39 classes during the semester, what is the
salantis [7]

Answer:

The best estimate of the number of times out of 39 that Ariana is on time to class is 27.

Step-by-step explanation:

For each class, there are only two possible outcomes. Either Ariana is on time, or she is not. The probability of Ariana being on time for a class is independent of other classes. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

E(X) = np

The probability that Ariana is on time for a given class is 69 percent.

This means that p = 0.69

If there are 39 classes during the semester, what is the best estimate of the number of times out of 39 that Ariana is on time to class

This is E(X) when n = 39. So

E(X) = np = 39*0.69 = 26.91

Rounding

The best estimate of the number of times out of 39 that Ariana is on time to class is 27.

8 0
3 years ago
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