Answer:
The circumference is an irrational number.
Step-by-step explanation:
is an irrational number, multiplying by a rational number different from 0 will give as a result an irrational number. This is because if that is not the case, then there would exist rational numbers <em>a</em> and <em>b</em>, with <em>a</em> different from 0, such that 
, then 
.
Since the quotient of two rational numbers is a rational number, if b and a were rational, then should also be rational, which is not the case.
We conclude that, since the diameter is positive and rational, that the circumference cant be rational, therefore it is irrational.
Answer:
21
Step-by-step explanation:
t² - t + 1 when t = 5
<u>5²</u> - 5 + 1
<u>25 - 5</u> + 1
<u>20 + 1</u>
21
Since t = 5, you plug in 5 in the t place in the equation and then solve. Hope this helps, thank you :) !!
Answer:
x + y = 320
8x + 5y = 1900
Step-by-step explanation:
The equation x + y = 320 represents how 320 tickets were sold in total, from combining the adult and child tickets sold.
Since adult tickets are $8 each, the money from adult ticket sales can be represented by 8x.
The money from child ticket sales can be represented by 5y.
The equation 8x + 5y = 1900 represents how $1900 worth of tickets were sold.
So, the system of equations for the situation is:
x + y = 320
8x + 5y = 1900
I don’t get it
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Area of a square = a^2
(1 3/4 )×( 1 3/4)
3/4 = 0.75
1.75×1.75=3.0625
area of a square = 3.0625 units
