Answer:
Carl and Alex are wearing hats.
Step-by-step explanation:
If Bob doesn't isn't wearing a hat, then Carl is, so Carl clearly is wearing a hat.
Now let's look at Alex. If he wasn't wearing a hat, then Bob would be wearing one. (If Alex doesn't wear a hat, then Bob wears
a hat). The logical conclusion is that Alex must be wearing a hat as well.
X^4 + 8x^2 - 9
= (x^2 + 9)(x^2 - 1)
= (x^2 + 9)(x + 1)(x - 1) Answer
Here, First two number represents Product of first two numbers in L.H.S.
For example, 5 * 3 = 15
Or 9 * 2 = 18
Now, second two numbers represent product of 1st & 3rd number,
For example, 5 * 2 = 10
Or 9 * 4 = 36
Now, Last two numbers represent Sum of 4 digit-number minus middle number.
So, 7 + 2 + 5 = 143547
In short, Your Final Answer would be: 143547
Hope this helps!
Answer:
The total number of books is 1020.
Step-by-step explanation:
Denote the books by their first letter.
From the provided information:
Compute the expression of <em>T</em> as follows:
Compute the value of <em>C</em> in terms of <em>A</em>:
Compute the value of <em>A</em> as follows:
Use expressions (i) and (ii):
Compute the value of <em>T</em> as follows:
Thus, the total number of books is 1020.
Answer: Your answer is C)
Step-by-step explanation: Graphing x^2 + y^2 = 4 gives us a circle with a radius of 2 and a center located on the origin which is exactly the same as the circle you have given in your question.
