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
Rudiy27
3 years ago
5

Is 2.78778777... a irational number

Mathematics
2 answers:
Cerrena [4.2K]3 years ago
7 0
If by the ellipses you mean to say that the number 7 repeats forever after that point, then it is not irrational. Any number which can be expressed with repeating decimals is not irrational. For example, pi is an irrational number because it has no repeating decimals, but 0.33333333... is not irrational because it can be expressed by simply saying 0.3 repeated.
adell [148]3 years ago
4 0
YES!!! 2.78778777 is an irrational number because it has endless numbers, and a irrational number cant be put as a fraction but rational numbers can be put as a fractio!!
You might be interested in
What is the GCF of 28 and 16
Margarita [4]
4 is your answer have a nice day
8 0
3 years ago
Read 2 more answers
Write the absolute value equation that has these two solutions x= (-8,22)
In-s [12.5K]

Answer:

8,22

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Writing and Solving an Equation to Find Negative Integers Two negative integers are 5 units apart on the number line, and their
Shtirlitz [24]

Answer:

-23

Step-by-step explanation:

Let first negative integer = x

The second = x +5

Their product = 126, hence,

x * (x +5) = 126

x^2 + 5x = 126

x^2 + 5x - 126 = 0

Two numbers whose product gives - 126 and sun gives 5

x(x + 14) - 9(x+14) =0

(x - 9) = 0 or (x + 14) = 0

x = 9 or x = - 14

Since x is said to be a negative integer,, the our x = - 14

First integer = - 14

Second integer = (x + 5) = (-14 + 5) = - 9

Sum of both integers :

-14 + - 9 = - 23

3 0
3 years ago
Make a table to help solve this problem. Cory, Srey, Molly, and Mao each visited a different city: Santa Clara, Seattle, Des Moi
makkiz [27]

From the table we can say Srey visited Pittsburgh if the Cory, Srey, Molly, and Mao each visited a different city: Santa Clara, Seattle, Des Moines, and Pittsburgh.

<h3>What is reasoning?</h3>

When making a choice or addressing an issue, reasoning is the ability to appraise things rationally by using logic based on new or existing information.

We have:

Cory, Srey, Molly, and Mao each visited a different city: Santa Clara, Seattle, Des Moines, and Pittsburgh. Cory and Molly visited cities with two words in their names.

Mao and Cory visited cities whose names start with an S.

The table can be make to show the information provided:

Cory - city with 2 words

Molly - city with 2 words

Mao - starting with an s

Cory - starting with an s

cities are : Seattle, Santa Clara,Pittsburgh,Des Moines

The table is:

Name            City name

Cory               Santa Clare

Molly              Des Moines

Mao                Seattle

Srey               Pittsburgh

Thus, from the table we can say Srey visited Pittsburgh if the Cory, Srey, Molly, and Mao each visited a different city: Santa Clara, Seattle, Des Moines, and Pittsburgh.

Learn more about the reasoning here:

brainly.com/question/11478756

#SPJ1

6 0
1 year ago
Create the equation of a quadratic function with a vertex of (5,6) and a y-intercept of -69
Elena L [17]
If the y-intercept is at -69, meaning the point is (0, -69), thus x = 0, y = -69

\bf ~~~~~~\textit{parabola vertex form}&#10;\\\\&#10;\begin{array}{llll}&#10;\boxed{y=a(x- h)^2+ k}\\\\&#10;x=a(y- k)^2+ h&#10;\end{array}&#10;\qquad\qquad&#10;vertex~~(\stackrel{}{ h},\stackrel{}{ k})\\\\&#10;-------------------------------\\\\&#10;vertex~(5,6)\quad &#10;\begin{cases}&#10;x=5\\&#10;y=6&#10;\end{cases}\implies y=a(x-5)^2+6&#10;\\\\\\&#10;\textit{we also know that }&#10;\begin{cases}&#10;x=0\\&#10;y=-69&#10;\end{cases}\implies -69=a(0-5)^2+6&#10;\\\\\\&#10;-75=25a\implies \cfrac{-75}{25}=a\implies a=-3&#10;\\\\\\&#10;therefore\qquad \boxed{y=-3(x-5)^2+6}
3 0
2 years ago
Other questions:
  • The range of the function f(k) = k2 + 2k + 1 is {25, 64}. What is the function’s domain?
    6·1 answer
  • Aaron and Maria collected shells one morning at the beach. Maria had 3 times as many as Aaron, but they would have had the same
    5·1 answer
  • The coordinates of a point satisfy the equation of a line if the point is on the line
    13·1 answer
  • Subtract 3 — (—3) <br> answer idk
    14·2 answers
  • SOMEONE HELPPPP MEEEEE PLzzzzzzz
    10·2 answers
  • What is the slope of a line with endpoints (-11,5) and (5,-7)
    14·2 answers
  • If the Diameter of a circle is 30.4, what is the area of the circle?
    12·1 answer
  • WILL MARK BRAINLIEST
    8·2 answers
  • Which of the following residual plots shows a linear model to be a good fit for the data?
    9·1 answer
  • 1. Is the average change in population is the same now as it was 50 years ago? Explain your answer.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!