1. Which of the following numbers is an example of an integer?
• -15
• 3/5
• 0.252525 . . .
2.
Which statement is false?
• Every integer is a real number.

• The number zero is a rational number.
• Every irrational number is a real number.

• Every real number is a rational number.
3.
Which number is not the same type of number as the others in the list?
• 5.85
• 63.4
• 8.52624 . . .
• 27.5
4.
How would you change this sentence to a true statement?

Some irrational numbers are also rational numbers.
• All irrational numbers are also rational numbers.
• Half of the irrational numbers are also rational numbers.
• One-third of the irrational numbers are also rational numbers.
• Irrational numbers cannot be classified as rational numbers.
5.
How would you change this sentence to a true statement?

Every irrational number is an integer.
• Every irrational number is a rational number.
• Every irrational number is a real number.
• Every irrational number is a whole number.
• Every irrational number is a perfect square.

Answers

Answer 1

Answer: 1. The answer would be "-15" since integers are composed of whole numbers and negatives.

2. The statement "Every real number is a rational number." is false, since real numbers are composed of both rational and irrational numbers.

3. The number "8.52624 . . ." because this is the only non-terminating number, which makes it the only irrational number on the list.

4. "Irrational numbers cannot be classified as rational numbers." is the only correct statement. No irrational numbers can be rational numbers, and the opposite is also true.

5. Only the statement "Every irrational number is a real number." is true.

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can you write an equation by setting an expression equal to itself. would an equation like this be true

Answers

Of course ! An expression is always equal to itself.

But if there's, say, an 'x' in the expression, then such an equation would be true
for x=every possible number. You might say it has an infinite number of solutions ...
which certainly has to be true, because no matter what you do to an expression,
it's still always equal to itself !

yes it would be as long as it truly equals eachother

What is the slope of the linear function of (6 , 2) (9 , 8)

Answers

Answer:

1/2

Step-by-step explanation:

The formula for slope is $(y_(2)-y_(1) )/(x_(2)-x_(1) )$

9-6=3

8-2=6

3/6=1/2

Dan left the city traveling at 87mph, while, Sally left the city going the opposite direction at a speed of 41mph. Find the time Dan traveled before the two were 113 miles apart

Answers

Step-by-step explanation:

10858100817910891900

Use cross multiplication to solve the following proportion. 1. /6 = 15/18

Answers

Answer:

x=5

Step-by-step explanation:

x/6=15/18

18x=6 times 15

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x=5

Need Help ASAP!!!

Find the sine of G

Answers

Answer:

≈0.68

Step-by-step explanation:

with what u have u can get $cos G^(-1)$

so it will be equal $\sqrt43$ /9 =43°13'49.75"

now u can get the sine

sin 43°13'49.75" ≈ 0.68

X-y+z=-4

3x+2y-z=5

-2x+3y-z=15

How do I solve this?

Answers

$1)\ \ \ x-y+z=-4\ \ \ \Rightarrow\ \ \ z=-4-x+y\n\n2)\ \ \ 3x+2y-z=5 \n.\ \ \ \ \Rightarrow\ \ 3x+2y-(-4-x+y)=5 \n.\ \ \ \ \Rightarrow\ \ 3x+2y+4+x-y=5 \n.\ \ \ \ \Rightarrow\ \ 4x+y=1\n\n3)\ \ \ -2x+3y-z=15\n.\ \ \ \ \Rightarrow\ \ -2x+3y-(-4-x+y)=15\n.\ \ \ \ \Rightarrow\ \ -2x+3y+4+x-y=15\n.\ \ \ \ \Rightarrow\ \ -x+2y=11\n--------------------\n$

$z=-4-x+y\n.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ and\n \left \{ {{4x+y=1\ \ \ \ } \atop {-x+2y=11\ /\cdot4}} \right. \n\n\left \{ {{4x+y=1\ \ \ \ } \atop {-4x+8y=44}} \right. \n-------\ny+8y=1+44\n9y=45\ /:9\ny=5\n\n-x+2y=11\ \ \ \Rightarrow\ \ \ x=2y-11\ \ \ \Rightarrow\ \ \ x=2\cdot5-11=-1\n\nz=-4-x+y=-4-(-1)+5=-4+1+5=2\n\nAns.\ x=-1\ \ \ and\ \ \ y=5\ \ \ and\ \ \ z=2$

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