<u>Answer:</u>
○ The distance between <em>a</em> and <em>b </em>on the number line is 0.47 units.
<u>Explanation:</u>
The first statement is <u>not true</u> because the distance between <em>a </em>and <em>b </em>on the number line is not 0.47.
Distance between <em>a</em> and<em> b</em> = 5.25 - (-5.72)
= 10.97
• The second statement is true because the sum of <em>a</em> and <em>b is</em> negative:
Sum = a + b
= -5.72 + 5.25
= -0.47
• The third statement is true because the quotient of <em>a</em> and <em>-b</em> is:
<em>a </em>÷ <em>-b</em>
⇒ -5.72 ÷ -5.25
⇒ 1
And the quotient of -a and b is:
<em>-a</em> ÷ <em>b</em>
⇒ -(-5.72) ÷ 5.25
⇒ 1
This shows that the quotients are the same.
• The fourth statement is true because the product of <em>a</em> and <em>-b</em>:
a × -b
⇒ -5.72 × -(5.25)
⇒ 30.03 ,
is positive.
Answer: It's not
Step-by-step explanation:
A perfect square is always , where .
Knowing this, we can square root 144x to get 12x. Square rooting 81 gets us 9. Unfortunately, if we multiply 12 and 9 together, then double it, we get 216, which is definitely not 200.
Therefore, the polynomial is not a perfect square.
Answer:
The length of one side of the square is 11.8 inches.
Step-by-step explanation:
Since a square has 4 sides and they are all equal, you want to divide 47 by 4.
You will get 11.75 inches per side.
However, since they want you to round to the near tenth, the answer will actually be 11.8 inches.
Answer:
7
Step-by-step explanation:
The sum of the two number is 10 + x, which when doubled equals 36. Divide the 36/2, which gets to 18. Move the 10 to the other side which gets 18-10 to get 8. 20 years from now, so add 20. 20+8 is 28. 4 times my present age. So do the inverse and you will get 28/4 which equals 7. You're present age is 7.