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Mnenie [13.5K]
2 years ago
6

Is √7 a rational number? why or why not? Explain

Mathematics
2 answers:
Contact [7]2 years ago
8 0

Answer:

Is the Square Root of 7 Rational or Irrational? A rational number is defined as a number that can be expressed in the form of a quotient or division of two integers, i.e. p/q, where q is not equal to 0. ... Due to its never-ending nature after the decimal point, √7 is irrational.

Veronika [31]2 years ago
3 0

Answer: √7 is irrational because the square root of 7 isn't a perfect root.

Step-by-step explanation:

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Find the value of two numbers if their sum is 112 and their difference is 66.
snow_lady [41]

Answer:

x+y = 112 ........ (1)

x-y = 62............ (2)

from (1) and (2)

2x = 174

x = 174/2

x = 87

sub x = 87 in (1)

x+y = 112

87+y = 112

y = 112 - 87

y = 25

so the numbers are 87 and 25

Step-by-step explanation:

8 0
2 years ago
plz help In Alexis’ English class, 21 students completed an essay by the due date. There are 30 students in Alexis’ English clas
yarga [219]

Answer:

70%

Step-by-step explanation:

I'm sorry but I don't really know how to explain it other than 70% of 30 is 21 so that means that 30% of the students turned their essay in on time.

(sorry for not being able to explain it but I hope it helped)

8 0
3 years ago
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Someone help please!<br><br><br><br>X+3y=-7 5x+6y=-8​
White raven [17]

Step-by-step explanation:

I have used substitution method here to find the value of x and y.

8 0
3 years ago
A cylindrical cooler has a diameter of 30 inches and a height of 24 inches . If a cup has a diameter of 3 inches and a height of
Aleks04 [339]

Answer:

The answer to your question is 600 cups

Step-by-step explanation:

Data

Cylinder                            Cup

diameter = 30 in               diameter = 3 in

height = 24 in                    height = 4 in

Process

1.- Calculate the volume of the cylinder

Volume = πr²h

-Substitution

Volume = (3.14)(30/2)²(24)

-Simplification

Volume = (3.14)(15)²(24)

Volume = (3.14)(225)(24)

-Result

Volume = 16959 in³

2.- Calculate the volume of the cup

Volume = (3.14)(3/2)²(4)

-Simplification

Volume = (3.14)(1.5)²(4)

Volume = (3.14)(2.25)(4)

-Result

Volume = 28.26 in³

3.- Divide the volume of the cylinder by the volume of the cup

Number of full cups =  16959 in³ /  28.26 in³

Number of full cups = 600

8 0
3 years ago
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I’ll be very grateful for anyone’s help I added a photo of the question
Irina18 [472]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
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