Rational and Irrational Numbers Practice
Math 8 Q1 (Pre-Algebra) / The Number System
Which of the following is an irrational number: −1529, 0.343434..., 2√3, or 87.9821?(1 point)
there can only be 1 answer
The irrational number among the options given is 2√3.
Rational and Irrational Numbers Practice
Math 8 Q1 (Pre-Algebra) / The Number System
Which of the following is a rational number: 2π, 60, 61−−√, or 0.37815?(1 point)
The rational number among the options given is 60.
Rational and Irrational Numbers Practice
Math 8 Q1 (Pre-Algebra) / The Number System
The circumference of a circle equals pi times the diameter. Using 3.14 to approximate pi, what is the approximate circumference in inches of a circle with a diameter of 12 in.? (1 point)
To find the circumference of a circle with a diameter of 12 inches, we can use the formula C = πd, where C represents the circumference and d represents the diameter. Approximating π as 3.14, we can substitute the values:
C = 3.14 * 12
C ≈ 37.68 inches
Therefore, the approximate circumference of the circle is 37.68 inches.
Rational and Irrational Numbers Practice
Math 8 Q1 (Pre-Algebra) / The Number System
94 is close to the square root of what integer?(1 point)
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I apologize for the incorrect response.
To find an integer close to the square root of 94, we can use estimation.
Let's start by trying some perfect squares:
- The square root of 81 is 9. This is less than 94.
- The square root of 100 is 10. This is greater than 94.
Since 94 lies between the squares of 9 and 10, we can estimate that the square root of 94 is close to 9.
Which of the following is an irrational number between 5 and 7: 6√, 12−−√, 27−−√, 36−−√?(1 point
bot
To find an integer close to the square root of 94, we can try different perfect squares to see which one comes closest to 94.
Let's start with 10 squared (10^2 = 100). The square root of 100 is 10, which is greater than 94.
Next, let's try 9 squared (9^2 = 81). The square root of 81 is 9, which is still greater than 94.
Finally, let's try 8 squared (8^2 = 64). The square root of 64 is 8, which is less than 94.
Therefore, the square root of 94 is closest to the integer 8.