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
galina1969 [7]
4 years ago
12

Robin randomly selects a number between 1 and 20. What is the probability that the number selected is the square of a natural nu

mber?
a.1/2
b.-3/20
c.-3/10
d.1/5
e.1/3
Mathematics
2 answers:
dezoksy [38]4 years ago
5 0
D is I am pretty sure
nlexa [21]4 years ago
5 0

Answer: d. \frac{1}{5}

Step-by-step explanation:

The square number between 1 and 20 = 1,4,9,16

The number of squares between 1 and 20 = 4

The total numbers between 1 and 20= 20

The probability that the number selected is the square of a natural number is given by :-

P=\frac{\text{square numbers}}{\text{total numbers}}\\\\\Rightarrow\ P=\frac{4}{20}=\frac{1}{5}

Hence, The probability that the number selected is the square of a natural number is \frac{1}{5}

You might be interested in
Help PLZZ no files PLZZ
frozen [14]

Answer:

34m of glass

Step-by-step explanation:

(I'm a visual learner so I'll have a picture of my work as well)

okay, you're going to want to separate this into a large rectangle and a triangle.

From there you're going to calculate the area of both.

rectangle formula:

A= L*H

Triangle Formula:

A= (L*H)/2

Then you just plug in the numbers and calculate, getting 18 for the rectangle and 16 for the triangle. 18+16 = 34

You add the two areas together as shown above, and then you have your area for the whole shape!

5 0
3 years ago
What does a supplementary angle look like
Keith_Richards [23]

Answer:

It has no special appearance.

Step-by-step explanation:

Any angle of measure 180° or less is supplementary to some angle. A supplementary angle is one that is the difference between 180° and the angle you have. That is, two supplementary angles total 180°.

__

Supplementary angles are readily identifiable in a number of geometries. Adjacent angles of a parallelogram are supplementary; linear angles are supplementary. Same-side interior angles where a transversal crosses parallel lines are supplementary.

8 0
3 years ago
Find the next 2 terms in the Geometric sequence 20,30,45 ...
DochEvi [55]

Answers:

The next two terms are 67.5 and 101.25 in that order.

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

Explanation:

Divide the second term over the first to get 30/20 = 1.5

Divide the third term over the second term to get 45/30 = 1.5

The common ratio is 1.5, which means we multiply 1.5 by each term to get the next term

-------

fourth term = 1.5*(third term) = 1.5*45 = 67.5

fifth term = 1.5*(fourth term) = 1.5*67.5 = 101.25

-------

As a shortcut you can plug n = 4 and n = 5 into the function t(n) = 20*(1.5)^(n-1) to get the fourth and fifth terms respectively.

3 0
3 years ago
1,000 more than 37,542
Hitman42 [59]

the answer is 1,000 + 37,542 so it is 38,542

7 0
3 years ago
System of equations- does this have one solution, many solutions or no solution
Alla [95]

Answer:

One solution

Step-by-step explanation:

Let's rewrite y = 6 - 3x as y = -3x + 6

Looking at these two equations, we can see they share a y-intercept

Making our solution 6

We know there is only one solution because the equations are not the exact same, if they were we'd have infinitely many solutions

We also know there aren't no solutions because the lines are not parallel (same slopes with difference y-intercepts)

Best of luck

3 0
3 years ago
Other questions:
  • Four hundred registered votes were randomly selected asked whether gum laws should be changed. Three hundred said yes and one hu
    12·1 answer
  • Express the polynomial below by nesting. f(x)=4x³+3x²+2x-4​
    11·1 answer
  • The area (A) of a circle with a radius of r is given by the formula A=3.14r^2 and its diameter (d) is given by d=2r. Arrange the
    5·1 answer
  • PLEASE HELP!! You make a scale drawing of a banner for a school dance. You use a scale of 1-inch feet. What is the actual width
    15·1 answer
  • Hey guys again please I suck at math
    12·2 answers
  • Find the value of x if log3 (x+6) =2​
    14·2 answers
  • Giselle is 24 years younger than her mother. In six years time she will be 1/4 of the age of her mother.
    8·1 answer
  • Determine the intercepts of the line.<br><br> Y-intercept (____,____)<br> X-intercept(____,____)
    12·1 answer
  • Solve the compound inequality 4x – 7 &gt; 5 or 5x + 4 ≤ –6. Question 18 options: A) –2 ≤ x 3 C) x 3
    8·1 answer
  • Find the value of x in the following parallelogram x =
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!