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IgorC [24]
3 years ago
10

Please help!! For each sum or product, determine whether the result is a rational number or an irrational number. Then choose th

e appropriate reason for each.

Mathematics
1 answer:
Troyanec [42]3 years ago
4 0
1. Rational/The sum of two rationals is always rational
2. Irrational/ the sum of a rational and an irrational is always irrational
3. Irrational/The product of a nonzero rational and an irrational is always irrational
4. Rational/The product of two rationals is always rational

Pretty much all the irrational numbers are the ones with radical signs over them and the rational numbers are the fractions and whole numbers. Once you identify the two numbers to be rational or irrational, you can then find your answer within the second part of the answers. 
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Each cube in this figure is a -millimeter cube. What is the total volume of the prism?
alekssr [168]

Answer:

  • D. 9 mm³

Step-by-step explanation:

<u>Given</u>

  • Dimension of the prism: 3x4x6
  • Side of each small cube: 1/2 mm

<u>Volume of the prism in terms of the number of small cubes:</u>

  • 3*4*6 = 72

<u>Volume of each unit cube:</u>

  • V = (1/2)³ = 1/8 mm³

<u>Volume of the prism:</u>

  • 72*1/8 = 9 mm³

Correct choice is D

7 0
3 years ago
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Ronald is preparing lemonade for his friends. To make 6 cups of lemonade, he needs 1 cup of lemon juice. To make 24 cups of lemo
timurjin [86]

Answer:1 cup=6 lemonade

X cups= 24 lemonade

Therefore;

x=24/6 × 1 = 4 cups.


Therefore four cups a


Step-by-step explanation:


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3 years ago
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A circle has a radius of 3. An arc in this circle has a central angle of 20. What is the length of the arc?
Ede4ka [16]
Circumference of whole circle =
\pi \times 3 \times 2
360÷20=18
\frac{1}{18}  \times 6\pi = \frac{1}{3} \pi
hence length of arc = 1/3 pi
5 0
3 years ago
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Jessie says to round 763,400 to the nearest ten thousand, he will round to 770,000 is he right ? explain
weqwewe [10]

For this case we have the following definition:

ten thousand place: number of five digits whose absolute value is greater than zero.

Then, we have the following rounding rule:

1) If the previous number is greater than or equal to five, then the next number increases by one unit.

2) If the previous number is less than or equal to five, then the next number remains the same.

We then have the following number:

763,400

Rounding to the nearest ten thousand we have:

760,000

Answer:

Jessie is wrong. The correct answer is:

760,000

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3 years ago
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Omg my teachers name is Taylor alsp sorry I don’t know the answer umm anways have a good day I guess Byee
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