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
timofeeve [1]
3 years ago
11

Why can a variable be used to represent a number

Mathematics
1 answer:
irina [24]3 years ago
6 0

Variables can be used to represent unknown numbers in a equation or expression that you will later find out what they are
You might be interested in
David wants to complete a hypothesis test with the least amount of probability for error. If he sets the significance level to 1
Brrunno [24]

Answer:

He could increase the sample size

Step-by-step explanation:

In hypothesis testing, the error associated with the test is affected by a number of factors. The first factor is the level of significance, alpha. This is the probability of type 1 error. The probability of rejecting the null hypothesis when it is indeed true.

The second factor is the size of the sample used. The larger the sample, the smaller the error since the characteristics of the sample will be closer to those of the entire population on which inference is being made

8 0
3 years ago
Read 2 more answers
Could ΔABC be congruent to ΔADC by SSS? Explain.
lubasha [3.4K]

Answer:

SSS means side-side-side

Step-by-step

how does your problem look like.

8 0
3 years ago
Help please..................
Ivahew [28]
(f+g)(x) = f(x) + g(x)
(f+g)(x) = [ f(x) ] + [ g(x) ]
(f+g)(x) = [ 3x-2 ] + [ 2x+1 ]
(f+g)(x) = (3x+2x) + (-2+1)
(f+g)(x) = 5x - 1

Answer is choice B
8 0
3 years ago
Evaluate.<br><br> 1+5⋅32<br><br> A. 8<br><br> b. 9<br><br> c. 16<br><br> d.18
Anna007 [38]

Answer:

the answer should be 161

6 0
3 years ago
Which is a step when multiplying or dividing numbers written in scientific notation?
Veronika [31]
It’s A
As it says in the answer, you usually add / subtract the exponents when needed.
4 0
2 years ago
Read 2 more answers
Other questions:
  • What is the classification for this polynomial?
    10·1 answer
  • Help Please What’s The Answer!!
    7·1 answer
  • What is the area of the following polygon below?
    9·1 answer
  • The volume (V) of water stored in an open tank varies due to evaporation as
    14·2 answers
  • Please help!! Thank you in advance !!!<br><br> Simplify: <br><br> 7√3 - 4√6 + √48 - √54
    7·1 answer
  • If f(-7)=14 what order pair does this represent?
    11·1 answer
  • The radius of a circle is 4 centimeters.what is the area
    8·1 answer
  • What is the surface area of this design? pls help me
    13·2 answers
  • Help, answer again pls
    5·1 answer
  • A motorist travels from town A to town B, which are 84km apart. If he has completed 7/8 of his journey, what is the distance he
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!