MATHEMATICS COLLEGE

Which point represents the value of –(–2) on the number line?

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

2 minus signs multiplied together give a plus. The number line I'm using does not have any y values.

Answer 2

Answer:

Answer:

-2

Step-by-step explanation:

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A set X is said to be closed under multiplication if for every X1, X2 E X we have X1X2 E X. Let A be the union of all bounded subsets X CR that are closed under multiplication. Does inf(A) exist? If it does, find it.

Answers

Answer:

inf(A) does not exist.

Step-by-step explanation:

As per the question:

We need to prove that A is closed under multiplication,

If for every $X_(1), X_(2)\in X$

$X_(1)X_(2)\in X$

Proof:

Suppose, x, y $\in A$

Since, both x and y are real numbers thus xy is also a real number.

Now, consider another set B such that:

B = {xy} has only a single element 'xy' and thus [B] is bounded.

Since, [A] represents the union of all the bounded sets, therefore,

$B\subset A$

⇒ xy $\in A$

Therefore, from x, y $\]in A$ , we have xy $\]in A$ .

Hence, set a is closed under multiplication.

Now, to prove whether inf(A) exist or not

Proof:

Let us assume that inf(A) exist and inf(A) = $\beta$

Thus $\beta$ is also a real number.

Let C be another set such that

C = { $\beta$ - 1}

Now, we know that C is a bounded set thus { $\beta$ - 1} is also an element of A

Also, we know:

inf(A) = $\beta$

Therefore,

$n(A)\geq \beta$

But

$\beta - 1$ is an element of A and $\beta - 1 \leq \beta$

This is contradictory, thus inf(A) does not exist.

Hence, proved.

The minimum monthly payment for Janice’s credit card is 2% of her balance or $10, whichever is higher. If Janice’s balance at the end of her last billing cycle was $820, what is her minimum monthly payment?A) $16.40
B) $10.00
C) $25.20
D) $5.20

Answers

820*.02=16.4
correct answer is A) $16.40

$16.40 *apex answer*

Pleaae tell fast plzzzzzzzzzzz

Answers

Answer:

k=4/3

Step-by-step explanation:

5(2k-1)-k=7

10k-5-k=7

9k=12

k=4/3

(6)and-
The terms of an expression 4x² – 3xy are:
(a) 4x and -3xy (b) 4x² and 3xy
(c) 4x² and -xy
(d) x

Answers

Answer:

(b) 4x² and 3xy

Step-by-step explanation:

The terms of an expression 4x² – 3xy are:

The terms are the factors of the expression, which are 4x² and -3xy. The signal is not counted as a term. So the correct answer is given by option b.

F)-5y=BY
y=
F) check

Answers

Answer:

y=b+5f

Step-by-step explanation:

I think that's the answer

A coral reef grows 0.14 m every week. How much does it grow in 14 weeks? Write your answer in millimeters.

Answers

Answer:

0.14*14= 1.96

Step-by-step explanation:

Must multiply 0.14 times 14 for the answer.

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Of (x - 12)(3x + 4)?

Mr. Markle has a jar on his desk that contains 10 marbles shown. What is the likelihood that a red marble will be chosen?