1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
inna [77]
3 years ago
14

Select True or False for each statement.

Mathematics
2 answers:
Tpy6a [65]3 years ago
8 0

Answer:

1. True

2. False

3. True

4. False

5. True

Step-by-step explanation:

1. For a real number a, a + 0 = a.

This is true, any number plus zero is that number.

2. For a real number a, a + (-a) = 1.

This is false.  Adding a negative number is the same as subtracting that number. So a + (-a) = a - a = 0

3. For a real numbers a and b la-bl = |b-al.

This is true.  Absolute value represents the distance between two numbers.  This number can never be negative, therefore la-bl = |b-al.

4. For real numbers a, b, and c, a +(bº c) = (a + b)(a + c).

False.  a + (b * c) = a + bc.

If you foil (a + b)(a + c) you will see its equal to a²+ab+ac+bc, which is definitely  different than a + (b*c)

5. For rational numbers a and b when b# o, is always a rational number.

True, a rational number is one that can be written as a fraction with two integers.  The quotient of two rational numbers can always be written as a fraction with integers.

Alborosie3 years ago
6 0
1. True
2. False
3. True
4.true
You might be interested in
What is the result of dividing 223 – 322
Mnenie [13.5K]

Answer:

3rd option

Step-by-step explanation:

8 0
2 years ago
Marika Perez’s gross biweekly pay is $2,768. Her earnings to date for the year total $80,272. What amount is deducted from her p
Angelina_Jolie [31]
Social Security  $4,976.86 and for Medicare  $1,163.94
7 0
3 years ago
Read 2 more answers
Please Help! After one side of a square flower bed was enlarged by 2 ft and the other side was enlarged by 3 ft, the area of a n
tangare [24]

Answer:

Its 6 feet

Step-by-step explanation:

lots of feet 6 is, 6 feet the answer is

(rsm gang was here)

8 0
3 years ago
Read 2 more answers
Describe the following pattern in your own words and write three next terms:2;1;1\2;1\4​
tangare [24]

Answer: Please mark me brainliest, it will really help me just as this answer really helps you.

Description: Divide by two

Next three terms: 1/8, 1/16, 1/32

Explanation:

<em>How to get next term?</em>

Divide the number before by two to get the next term.

<em>How do you get the pattern?</em>

I observed a pattern that each next number was divided by two.

5 0
2 years ago
Read 2 more answers
What product is positive ?​
s344n2d4d5 [400]
<h3>Answer: Choice D</h3>

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

Explanation:

The long way to do this is to multiply all the fractions out by hand, or use a calculator to make shorter work of this.

The shortest way is to simply count how many negative signs each expression has.

The rule is: if there are an even number of negative signs, then the product will be positive. Otherwise, the product is negative.

For choice A, we have 3 negative signs. The result (whatever number it is) is negative. Choice B is a similar story. Choice C is also negative because we have 1 negative sign. Choices A through C have an odd number of negative signs.

Only choice D has an even number of negative signs. The two negatives multiply to cancel to a positive. The negative is like undoing the positive. So two negatives just undo each other. This is why the multiplied version of choice D will be some positive number.

Or you can think of it as opposites. If you are looking up (positive direction) and say "do the opposite" then you must look down (negative direction). Then if you say "do the opposite", then you must look back up in the positive direction.

5 0
3 years ago
Other questions:
  • What conditions make a pair of triangles congruent
    13·1 answer
  • The probability that a city bus is ready for service when needed is 84%. The probability that a city bus is ready for service an
    13·2 answers
  • 2x + y = 5<br> 3y = 15 – 6x
    9·1 answer
  • The daily cost of hiring a plumber , y , to work x hours on a repair project can be modeled using a linear function. The plumber
    14·1 answer
  • If 90x=60, what is x?​
    11·2 answers
  • The fraction<br> 60/100 <br> can be divided by?
    10·1 answer
  • Strawberries cost $3.60 per pound. You buy a bag that costs $7.20. How many pounds of strawberries are in the bag?
    12·1 answer
  • A triangle is shown on the right. What is the measure of the missing angle of the triangle? (Please leave a small explanation)
    9·1 answer
  • 1.<br> 67°<br> mZ1<br> |<br> ㅛ<br> Find each angle measure
    5·1 answer
  • Solve for x . Help me solve them
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!