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
Illusion [34]
3 years ago
12

Is 9.99 rational or irrational

Mathematics
1 answer:
aleksley [76]3 years ago
6 0

Answer:

Rational

Step-by-step explanation:

A rational number can be written as a fraction of the form.

\frac{a}{b}  \: where \: b \ne0

and a and b are integers.

9.99 =  \frac{999}{100}

Hence in this case a=999 and b=100.

Since both are integers with b being a non-zero integer, we conclude that 9.99 is a rational number.

You might be interested in
Question 1. If the perimeter of Rectangle ABCD is 34y+2. What is the width?
Savatey [412]

Answer:

Question 1. If the perimeter of Rectangle ABCD is 34y+2. What is the width?

Question 2. What is the area of Rectangle ABCD in terms of y?

Question 3. If the perimeter of the rectangle is 70. What is it’s area?

Question 4. What are the length and width of the rectangle?

6 0
3 years ago
The diagram below shows the dimensions of a triangular park built in a new housing development. Two side lengths and one angle m
evablogger [386]
ANSWER

x = 50.5 \degree

EXPLANATION

We use the sine rule for solving triangles.

This is given by the formula,


\frac{ \sin(A) }{a}  =  \frac{ \sin(B) }{b}  = \frac{ \sin(C) }{c}


From the triangle,

\frac{ \sin(x) }{60}  =  \frac{ \sin(40) }{50}

We multiply both sides of the equation by 60 to get,

sin(x)  =  \frac{ 60\sin(40 \degree) }{50}


sin(x)  = 0.7713



We solve for x to obtain,

x = arcsin(0.7713)


x = 50.475

To the nearest tenth, we round to one decimal place to get,

x = 50.5 \degree

7 0
3 years ago
WILL GIVE BRAINIEST TO WHOEVER'S RIGHT!!!!
Aneli [31]
C. Corresponding Angles Postulate
7 0
3 years ago
The number of students in a book club is increasing 15% per year. If there were 21 students in the club in 2010, then how many w
Kruka [31]

The Answer is 63

Step-by-step explanation:

4 0
2 years ago
PLEASE ANSWER THIS: look at the pic for question. Thanks!!!
Nadya [2.5K]

Answer:

\text{D. }b^2-4ac>0

Step-by-step explanation:

The equation b^2-4ac represents the discriminant of a quadratic. It is the part taken from under the radical in the quadratic formula.

For any quadratic:

  • If the discriminant is positive, or greater than 0, the quadratic has two solutions
  • If the discriminant is equal to 0, the quadratic has one distinct real solution (the solution is repeated).
  • If the discriminant is negative, or less than 0, the quadratic has zero solutions

In the graph, we see that the equation intersects the x-axis at two distinct points. Therefore, the quadratic has two solutions and the discriminant must be positive. Thus, we have b^2-4ac>0.

4 0
3 years ago
Other questions:
  • A shop uses cone-shaped coffee filters in its coffee pots. Each filter has a diameter of 5 inches and a height of 4 inches. What
    12·2 answers
  • All rectangles are _____.<br><br> parallelograms<br> rhombuses<br> squares<br> quadrilaterals
    6·1 answer
  • A salt mixture hss 7 parts water and 1 part salt. Suppose another part of salt is added. What is the new ratio of salt to water?
    8·2 answers
  • 1) Work out the value of x. <br> 2) Give reasons for your answer. <br><br> Please!
    15·1 answer
  • Express this number in scientific notation. 0.0048
    13·1 answer
  • Need help!!! Worth 13 points!
    14·1 answer
  • D<br> 9<br> CD = [?]<br> A 3 B 3 C<br> Enter the number that belongs in<br> the green box.
    7·1 answer
  • What is the range of the function x is 0 and y is 40
    9·1 answer
  • I number line from -5 to 5 with the plot of -3 and so on i dont want links
    8·2 answers
  • To solve 1/3÷9, James thinks of dividing a loaf of bread into 3 equal parts, dividing one of those parts into 9 equal slices, an
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!