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alukav5142 [94]
3 years ago
10

2. If a, b are non-zero rational numbers, and c is a non-zero irrational number, what can we say about

Mathematics
1 answer:
topjm [15]3 years ago
5 0
B lookkkdhdvdb svdbd dhd. She d. Did d. He r. He. Hebrbeue. I’m going uuuyyyyyyyywjd
You might be interested in
CAN SOMEONE PLS TELL ME DOMAIN AND RANGE
lorasvet [3.4K]

Answers:

  • Domain is (-4, 3]
  • Range is (-5, 5]

=====================================================

Explanation:

The domain is the set of allowed x input values, aka the set of all allowed x coordinates of the points. We see that -4 < x \le 3. It might help to draw vertical lines through the endpoints until you reach the x axis. Note the open hole at x = -4 to indicate we do not include this as part of the domain (hence the lack of "or equal to" for the first inequality sign).

The interval -4 < x \le 3 then can be condensed into the shorthand form (-4, 3] which is the domain in interval notation.

It says: x is between -4 and 3. It can't equal -4 but it can equal 3.

So the use of parenthesis versus square brackets tells the reader which endpoint is included or not.

--------------------------------------------------

The range describes all possible y outputs. We see that y = 5 is the largest it gets and y = -5 is the lower bound. It might help to draw horizontal lines through the endpoints until you reach the y axis. The open hole means -5 is not part of the range.

The range as a compound inequality is -5 < y \le 5. This condenses into the shorthand of (-5, 5] which is the range in interval notation.

Verbally, the range is the set of y values such that y is between -5 and 5. It can't equal -5 but it can equal 5.

5 0
2 years ago
Read 2 more answers
I think of a number, multiply it by three, and add fout I get twenty two.
m_a_m_a [10]

Answer:

X times 3 + 4 =22

X=6

Step-by-step explanation:

22-4=18

18/3=6

7 0
3 years ago
One card is selected at random from a deck of cards. Determine the probability that the card selected is a card greater than 3 a
Svetlanka [38]

Answer:

4/13

Step-by-step explanation:

Count all cards that are 4, 5, 6, and 7 (each of 4 different suits) so the number of cards that is greater than 3 and less than 8 = 4(4) = 16.

There are 52 cards in a standard deck of cards.

P(greater than 3 and less than 8)

= 16/52

= 4/13

7 0
2 years ago
A book sold 31,100 copies in its first month of release. Suppose this represents 7.8% of the number of copies sold to date. How
zvonat [6]
For this problem you can create a proportion.
Since 31,100 copies is 7.8% of the total copies spoke up to date you can make this proportion:
31,100. 7.8%
——— =. ———
x. 100%
Now you cross multiply and you will get
7.8x=3,110,000
After this you solve for x by isolating the variable.
7.8x/7.8. 3,110,000/7.8
x=398,717.949
Since the question asks you to round to the nearest whole number which is 7 then the final answer would be 398,718
Answer: There has been 398,718 copies sold to date.
5 0
3 years ago
• The difference between a polynomial or rational equation and polynomial or rational inequality
algol [13]

Answer:

An equation has an equal sign between two expressions, while an inequality has a ≤ or ≥ sign.

4 0
3 years ago
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