MATHEMATICS HIGH SCHOOL

Please tell me if the number are rational or irrational ill send you a request and thank you
the square root of 25
the square root of 225
the square root of 78
the square rot of 59
thanks in advance

Answers

Answer 1
Answer: √(25)    = 5     (perfect square ⇒ rational)
√(225)  = 15   (perfect square ⇒ rational)
√(78)    = 8.831760866      (irrational)
√(59)    = 7.681145748      (irrational)

A rational number can be expressed in the way a : b or (a)/(b)
An irrational number cannot be expressed this way!

The two attachments are just worth looking at

Related Questions

Latoya performs an experiment using the lab equipment shown.Which two properties is Latoya most likely measuring?mass and volumevolume and temperaturetemperature and lengthlength and mass
What is 1 half subtract 1 tenth
If 8 people share 44 balloons equally, how many balloons does each person get?
One day at St. Philip's High School, 1/2 of the pupils walked to school, 1/5 of the pupils came to school by bus, and the remaining 57 pupils came by car.What fraction came to school by car?
The density of a certain material is such that it weighs 7 pounds for every 5.5 cups of volume. Express this density in kilograms per pint. Round your answer to the nearest hundredth.

a crew is made up of 8 men; the rest are women. 66 2/3% of the crew are men. how many people are in the crew?

Answers

let x=total crew number
(x)/(8) = 0.6666..
cross multiply 
(8)/(0.666) = x
x=12 
12-8 = 4
So there are 4 women in the crew

Find the coordinates of the other endpoint of the segment, given midpoint(-9,-11) &endpoint(-6,-8).

Answers

Answer:

((-6 + x)/2, (-8 + y)/2) = (-9, -11)

(-6 + x)/2 = -9 (-8 + y)/2 = -11

-6 + x = -18 -8 + y = -22

x = -12 y = -14

The other endpoint is (-12, -14).

EXPAND it please and explain
(9r-s/7)(9r+s/7)

Answers

Answer:

2. 2

81r - s/49

Step-by-step explanation: I don’t know how to explain it but yeah

( I’m probably wrong so if I am I’m sorry)

When e = 4, f = 2, and g = 8. If e varies jointly with f and g, what is the constant of variation?

Answers

Answer:

The\ constant\ of\ variation\ is\ (1)/(4).

Step-by-step explanation:

As given in the question

If e varies jointly with f and g.

i.e

e \propto fg

e = kfg

Where k is the constant of variation.

As

When e = 4, f = 2, and g = 8

Put in the above

4 = k × 2 × 8

4 = 16k

k = (4)/(16)

k = (1)/(4)

Therefore\ the\ constant\ of\ variation\ is\ (1)/(4).
in joint variation, the equation of variation holds the form 

e=k*fg, where k is the constant of variation. you can see how if either f or g increases, e increases as well, making e vary jointly with f and g. we are given the numbers e=4, f=2, and g=8, so when we input those into the general equations, 

4=k*2*8,
k=1/4

Natural numbers are part of every other category of numbers except?

Answers

Natural numbers are not part of irrational numbers: numbers which can't be described as a fraction of two rational numbers (pi is irrational! and so is e, another number used often in mathematics. )

2. A dice is rolled. A card is drawn from a deck of face cards (i.e. only Jack, Queen, King of each suit). A coin is flipped. a) Draw a tree diagram to define the sample space for this game. b) You win the game if you toss tails, draw a heart, and roll an even number. Find the probability that you do not win.

Answers

When you roll and even number, the probability of winning is 3/6 or 1/2.
When you want to draw a heart:
The sample space is 12. That is 3 faces and 4 suits. There are 4 hearts in this deck. The probability you get a heart is 4/12 or 1/3. 
When you want to toss a tail: 
Sample space is 2, head and tail. You do not win if you get a heads. The probability is 1/2. The probability of winning is 1/2 * 1/3 * 1/2 = 1/12 Then the probability of losing is 1-1/12 = 11/12
Other Questions
The human resources manager at a company records the length, in hours, of one shift at work, X. He creates the probability distribution below. What is the probability that a worker chosen at random works at least 8 hours?
1 1/4+2 1/2 what is the awnswer?
Which are properties of rotations? Check all that apply.
The minimum of the graph of a quadratic function is located at (–1, 2). The point (2, 20) is also on the parabola. Which function represents the situation?A.f(x) = (x + 1)2 + 2 B.f(x) = (x – 1)2 + 2 C.f(x) = 2(x + 1)2 + 2 D.f(x) = 2(x – 1)2 + 2