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likoan [24]
3 years ago
6

Which of the following is a rational number? (4 points)

Mathematics
2 answers:
abruzzese [7]3 years ago
8 0

Step-by-step explanation:

square root 15 = irrational

square root 16 = 4 = rational

square root 21 = irrational

square root 22 = irrational

valkas [14]3 years ago
4 0

Answer:

The correct answer is the square root of 16.

Step-by-step explanation:

The square root of 16 is 4, which is a whole number. Whole numbers are rational.

This eliminates the rest of the answers, but the square root of 15 has an infinite decimal, as well as the square root of 21 and 22.

Hope this helps! :)

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Michael’s weight can be represented by the expression 72x^5. Al’s weight can be represented by the expression 9x^7.
podryga [215]

Answer:

a) \frac{72x^5}{9x^7}

b) =\frac{8}{x^2}

c), Yes;8x^2

Step-by-step explanation:

Michael's Weight: 72x^5

Al's weight: 9x^7

a) Ratio of Michael's weight to Al's weight: \frac{72x^5}{9x^7}

b) This ratio simplifies to:  \frac{8\times 9x^5}{9x^5\timesx^2}

                                         =\frac{8}{x^2}

c) Yes, If the exponent in each expression were negative, then we have:

Ratio of Michael's weight to Al's weight: \frac{72x^{-5}}{9x^{-7}}

This ratio simplifies to:  8x^{-5--7}=8x^2

The two ratios are not the same.

3 0
3 years ago
you have 120 pieces of fabric to make a blanket. each piece of fabric is a square with a side length of 6 inches. you use as man
guapka [62]
To make a square blanket, you need to calculate the squareroot of 120, which is 10,954... so the biggest number is 10x10 peaces of fabric you can use to create a square blanket. These are 100 (so 20 are left over). To create a bigger square blanket of 11×11 peaces (11^2 = 121) you need one more peace of fabric. One peace is six inches, the blanket is 10 peaces long (6×10=60) The size would be 60inchesx60inches= 3.600 inches.
4 0
2 years ago
Expand the expression.<br> -70k - 3)
ruslelena [56]

Answer:

-70003

Step-by-step explanation:

-70000 - 3 = - 70003

4 0
2 years ago
5. What is the value of the expression<br> [(29 + 18) + (17 - 8)] = 8?
uysha [10]
I'm not sure what exactly the question is asking for, but the value if this expression should be 56.

Add what are in the parentheses, 29+18=47 and 17-8=9.
Then add up those values, 47+9=56.

Comment on this post if I understood the question incorrectly.
5 0
2 years ago
Read 2 more answers
How do you solve
lukranit [14]
Because 666 and 420 makes 1,086 and 6969+6969=13,938 therefore x is equivalent to y so ur answer is y=1.
4 0
3 years ago
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