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allochka39001 [22]
3 years ago
5

Is #3pi# a rational, irrational number, natural, whole or integer?

Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0
3pi is irrational because it cannot be expressed as a fraction or decimal. The digits after the decimal point in pi continue on forever without a pattern.
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How do I solve this?
ra1l [238]

Answer:

(-6,1)   (2,7)

Step-by-step explanation:

y =x+5

y = x^2 +5x-7

Set the two equations equal since y=y

x+5 =  x^2 +5x -7

Subtract x from each side

x-x+5 =  x^2 +5x-x -7

5 = x^2 +4x -7

Subtract 5 from each side

5-5 = x^2 +4x -7-5

0 = x^2 +4x-12

Now we can factor the right side

What 2 numbers multiply to -12 and add to +4

6*-2 =-12

6-2 =4

0 = (x+6) (x-2)

Using the zero product property

x+6=0    x-2=0

x=-6   x=2

We need to find y for each value of x

y = x+5           y = x+5

y = -6+5            y = 2+5

y =1                 y = 7

4 0
3 years ago
The price of a 6-minute phone call is 1.80. What is the price of a 12-minute phone call?
hoa [83]

Answer:

3.60

Step-by-step explanation:

1.80 x 2

4 0
3 years ago
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Describe a relationship in which one quantity increases as another quantity decreases
Morgarella [4.7K]
Inversely proportional
4 0
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What is the median of the data set given below? 26, 39, 18, 21, 24, 48, 21, 35
sergiy2304 [10]
To find the Median, place the numbers you are given in value order and find the middle number. <span>If there are two middle numbers, you average them.
</span><span>18,  21,  21, 24,  26, 35, 39, 48

The two middle number are 24 and 26
Average 24 + 26/2 = 25
The median is 25
</span>
6 0
2 years ago
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C(1)=−20<br> c(n)=c(n−1)+10<br><br> Find the second term in the sequence. <br> ​
svet-max [94.6K]

Answer:

c(2) = -10

Step-by-step explanation:

The first equation says that the first term of the sequence is -20.

The second equation is saying that to find any term of the sequence, add 10 to the previous term.

c(2) = c(2-1) + 10

c(2) = c(1) + 10

c(2) = -20  + 10 = -10

5 0
2 years ago
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