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
ella [17]
3 years ago
10

What describes an equation that has a solution set of "all real numbers"

Mathematics
2 answers:
Sunny_sXe [5.5K]3 years ago
5 0

Answer:

an equation where both sides of the equal side are the same number

example:

2n+3=2n+3

simplify that down and get

0=0

this is a true statement, 0 does equal 0, so the solution is all real numbers

inysia [295]3 years ago
4 0

Answer:

Any value you choose for x will make the equation a TRUE statement. This type of equation is called an identity, and the solution set is all real numbers.

You might be interested in
PLEASE HELP!! A classmate wrote the set notation for the values of the domain of a function {−5, −4, −3, −2, −1, 0} as {x | −5 ≤
vfiekz [6]
<h3>Answer: Choice B</h3>

The set notation includes all values from -5 to 0, but the domain only includes the integer values

eg: something like -1.2 is in the second set, but it is not in the set {-5,-4,-3,-2,-1}

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

Further explanation:

Let's go through the answer choices one by one

  • A. This is false because 0 does not come before -5, but instead -5 is listed first. The order -5,-4,-3,-2,-1,0 is correct meaning that -5 \le x \le 0 is the correct order as well.
  • B. This is true. A value like x = -1.2 is in the set \left\{x| -5 \le x \le 0\right\} since -1.2 is between -5 and 0; but -1.2 is not in the set {-5, -4, -3, -2, -1, 0}. So the distinction is that we're either considering integers only or all real numbers in this interval. To ensure that we only look at integers, the student would have to write \left\{x| x\in\mathbb{Z}, \ -5 \le x \le 0\right\}. The portion x \in \mathbb{Z} means "x is in the set of integers". The Z refers to the German word Zahlen, which translates to "numbers".
  • C. This is false. The student used the correct inequality signs to indicate x is -5 or larger and also 0 or smaller; basically x is between -5 and 0 inclusive of both endpoints. The "or equal to" portions indicate we are keeping the endpoints and not excluding them.
  • D. This is false. Writing -5 \ge x \ge 0 would not make any sense. This is because that compound inequality breaks down into -5 \ge x \ \text{ and } \ x \ge 0. Try to think of a number that is both smaller than -5 AND also larger than 0. It can't be done. No such number exists.
8 0
3 years ago
What is the length of the altitude of the equilateral triangle below
ale4655 [162]
Using Sine.

Sine = Opposite / Hypotenuse

sin 60° = a / (6√3)                        But sin60° = √3/2

√3/2 = a/(6√3)

Cross multiply

2*a = 6√3 * √3

2a = 6 * √(3*3)

2a = 6*3

a = 6*3/2

a = 3*3 = 9

Option E.

Hope this helps.
4 0
3 years ago
PLEASE HELP!!! which expression is equivalent to (3x)^4
dolphi86 [110]
The answer is b because youre multiplying 3 and 4 but the 4 stays in the same spot!
7 0
3 years ago
Find the area of the figure shown below. Use 3.14 for π and round your answer to the nearest hundredth.
topjm [15]

Answer:

ans: 111.54

Step-by-step explanation:

u can simple do by multiple

5 0
3 years ago
Read 2 more answers
Calvin and Susie are running for class president of the first 80% of the balance that are accounted Susie receives 53% of the vo
34kurt

Answer:

48

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • How to solve this equation for y. need assistance please.<br> y-260=-11/5(x-100)
    14·1 answer
  • Which shows the difference between 7 and 4<br> a. 7+4<br> b.7-4<br> c.7 times 4 <br> d.7 divide 4
    10·2 answers
  • Find ? in each case.
    14·1 answer
  • Algebra find each unknown 6/12=x/2
    12·1 answer
  • Is y=33x proportional or non proportional
    8·1 answer
  • A set of biology exam scores are normally distributed with a mean of 70 points and a standard deviation of six points X equal th
    6·1 answer
  • Find the values of the following expressions for x = 2. 4x – 3​
    5·1 answer
  • 4r + 6r - 13 = 7r + 5
    7·2 answers
  • Use the function y = 200 tan x on the interval 0 &lt; x &lt; 141. Complete the ordered pair (xº, 0). Round your answer to the
    14·1 answer
  • Whcih choice best describes the group this shape belongs in, based on the kinds of sides and angles it has? Angela chose A as th
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!