The number (√5+2)/(√5-2)
is:
(a) a rational number
(b) an irrational number
(c) an integer
(d) a natural number

Answers

Answer 1

Answer:

b:  irrational

Step-by-step explanation:

  (√5+2)

--------------  is given.

  (√5 - 2)

If we multiply numerator and denominator by (√5+2), we succeed in removing the square root symbol from the denominator:

(√5+2)(√5+2)

---------------------

(√5+2)(√5- 2)

and the denominator becomes 5 - 2, or 3.  The denominator is now rational, but the numerator still involves the square root symbol, so overall the given number is irrational.


Related Questions

Can someone please help me

Answers

Answer:150

Step-by-step explanation: If you see the highest point in the number line. You can see it’s in the middle of of 140 and 160 so it’s 150

Can someone pleaseeee help and if you’re correct i’ll give brainliest

Answers

Answer:

V= 160

Step-by-step explanation:

V= l×w×h

= 8×4×5

I hope this helps

What is the Pythagorean Theorem?

Answers

the pythagorean theorem is A squared plus B squared equals C squared. and it is used to find a missing length in a right triangle:)

hope this helps!

Pythagorean theorem

in right angled triangles there is a relationship that governs the length of the tree sides. if we knows the length of any two sides, the third side maybe calculated by the use of the Pythagorean theorem.

this theorem states that the square on the hypotenuse of a right angled triangle is equal to the sum of the squares on the remaining two sides.

Please help me with this.

(NO FILES OR LINKS AS YOUR ANSWER, I CAN'T DOWNLOAD THEM)

Answers

Answer: The expressions 11(x+y) and 11x+11y

Find the area of a sector of a circle with radius 7 cm and and central angle 240°.

Answers

The formula for finding area of a sector is angle/360 * area. Now plug in. Area of whole circle is 49pi. Central angle is 240. 240/360 = 2/3. 2/3*49pi = 98pi/3

Answer:

103 cm^2

i just took the quick check

Brownies, b are 30 more than half the calories of a piece of cake c, write an equation

Answers

Answer:

b = 30 + c ÷ 2

Step-by-step explanation:

b = brownies

c = cake

The answer is 30>c(1/2) because brownies, b, is 30 MORE ,>, than half the calories, c.

M
Just answer it my guy

Answers

Answer:

96 m^2

Step-by-step explanation:

1. Multiply base x height

  12 x 16 = 192

2. Divide by half

   192/2 = 96

A cube has edges of 1/4 inch what is the surface area of the cube? Use the formula V=6s2

Answers

Step-by-step explanation:

Consider matrix A.

What is the inverse of A? Fill in the missing elements in the matrixs.Consider matrix A.

What is the inverse of A? Fill in the missing elements in the matrixs.ninja power

Help please I forgot how to multiply numbers

Answers

Answer:

2*3=6

Step-by-step explanation:

2*3 = 2+2+2 = 3+3 = 6

Write the equation of the line that has an undefined slope and passes
through the point (-4. –5).

Answers

Answer:

x = -4

Step-by-step explanation:

If a line has an undefined slope, it is a vertical line.

If we want a vertical line to include (-4, -5), every x-value will be -4.

This means our equation is:

x = -4

Hope this helps!

Helpppppp againnn plzzz

Answers

Answer:

x=8.17

Step-by-step explanation:

uztstskycuvkhifig

Answer:

x = 8.17

Step-by-step explanation:

We will be using pythagoras theorem:

[tex]a^{2} + b^{2} = c^{2}[/tex]

=> [tex]4.25^{2} + x^{2} = 9.21^{2}[/tex]

=> [tex]x^{2}[/tex] = 84.8241 - 18.0625 = 66.7616

=> x = [tex]\sqrt{66.7616}[/tex] = 8.17077719.. = 8.17 (3 s.f)

12m +8 – 5m + 2 + m = 6(m + 1)
m =

Answers

Answer:

m = −2

Step-by-step explanation:

Give me brainllest or お前はもう死んでいる

Answer:

m=-2

Step-by-step explanation:

i neeeeee helpppp asappppppp

Answers

Answer:

y = 7x + 41

Step-by-step explanation:

the y-intercept appears to be about 40 and the only option with this intercept is the first one

Help!

Last week, Jonathan ran 15 less miles than Andre. Jonathan ran a total of 43 miles. Write an equation to represent how many miles Andre ran last week?

Answers

43 + 15 = x (how much Andre ran)

x= 58 miles

What is the slope of the line that passes through the points (-2,-5) and (18, –5)?
Write your answer in simplest form.

Answers

Answer:

0

Step-by-step explanation:

Slope = [tex]\frac{y2-y1}{x2-x1}[/tex]

(-2,-5) = (x1,y1)

(18,-5) = (x2,y2)

Slope = [tex]\frac{-5+5}{18+2}[/tex]

          = [tex]\frac{0}{20}[/tex]

          = 0

Find the volume of a cone with a radius of 6 centimeters and a height of 15 centimeters. Round your answer to the nearest tenth.

Answers

Answer: 565.3 cubic cm

Step-by-step explanation:

V= 1/3Bh

V= 1/3π r^2h

= 1/3 π (6 cm) ^2 (15 cm)

= 1/3 π (36 cm squared) (15 cm)

= 180π cubic cm

about 565.2 cubic cm

π is about 3.14

The value of the volume of a cone with a radius of 6 centimeters and a height of 15 centimeters is,

⇒ 565.2 cubic cm

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

In cone,

Radius = 6 cm

Height = 15 cm

Now, We know that;

Volume of cone is,

V = 1/3π r²h

Substitute all the values we get;

V = 1/3 π (6 cm)² (15 cm)

V = 1/3 π (36) (15)

V = 180π

V = 565.2 cubic cm

Thus, The value of the volume of a cone with a radius of 6 centimeters and a height of 15 centimeters is,

⇒ 565.2 cubic cm

Learn more about the multiplication visit:

https://brainly.com/question/10873737

#SPJ2

Janelle (age 12 ) and her cousin, marquita (age14 ) , go to 7:00 P.M show generate an equivalent expression for the total cost of admission. What is the total cost

Answers

Answer:

The answer is "$13".

Step-by-step explanation:

The entrance fee for a show is [tex]\$8[/tex] for an adult, [tex]\$5[/tex] for children under 13, and [tex]\$3[/tex] for matinees (before 6 pm).

In our event, Janelle is a child as she's underneath the age of 13 who pays [tex]\$5[/tex] while she's an older person and therefore she's going to pay [tex]\$8[/tex].

[tex]\$ 8 + \$ 5 = \$ 13[/tex], therefore the overall cost for the show is 13 dollars

1) Which equation is true?
0.7 : 0.35 = 2
0.35 : 0.7 = 5
0.5 : 0.35 = 7
0.1 : 0.35 = 0.35

Answers

Answer:

0.7 : 0.35=2

It's true.....

1) Which equation is true?
Answer:
0.5 : 0.35 = 7

PLEASE HELP FAST!!!
The table shows the percentage of students in each of three grade levels who list soccer as their favorite sport.
Soccer
Sophomores (35%) 50%
Juniors (33%) 45%
Seniors (32%) 30%
Total (100%) (0.5)(0.35) + (0.45)(0.33) + (0.32)(0.3) = 0.4195 or about 42%

Find the probability, rounded to the nearest hundredth, that any student selected from all three grades is a junior who lists soccer as the favorite sport.
P(junior ∩ soccer) =
A) 0.45
B) 0.78
C) 0.52
D) 0.15

Answers

Answer: a is your answer hope this helped

plz make brainly

Step-by-step explanation:

Answer:

0.45

Step-by-step explanation:

please help to find a5 from the above question​

Answers

Answer:

hope it helps..........

I’m failing this class please help

Answers

Answer:

I think it is 4

Step-by-step explanation:

also if you need more help, go to khanacademy.org (100% free) and take the lesson on your topic

7. Giovanni made the design below for an art project. What is the area of the drawing? 13 in. 5 in. 4in.​

Answers

Answer:

75 in^2

Step-by-step explanation:

Given data

From the figure

We can see a rectangle and a triangle

The area of the rectangle is

Area= L*W

Area= 13*5

Area= 65 in^2

Area of the triangle

Area= 1/2b*h

Area= 1/2*4*5

Area= 2*5

Area= 10 in^2

Hence the area of the composite figure is

Area= 65+10

Area= 75 in^2

.
What is the perimeter of this tile?
3 in.
3 in.

Answers

Answer:

I think it's 12

Step-by-step explanation:

Analia is a school district manager. Here are some details about two schools in her district for the last school year:
School A School B
Number of students 300030003000 400040004000
Number of teachers 190190190 380380380
Graduation rate 86\%86%86, percent 90\%90%90, percent
Budget per student \$10{,}500$10,500dollar sign, 10, comma, 500 \$10{,}000$10,000dollar sign, 10, comma, 000
% of students in sports club 62\%62%62, percent 68\%68%68, percent
Number of sports medals won 999 777
SAT average 120012001200 105010501050
SAT range (max-min) 900900900 700700700
Analia wants to know which school has the lower SAT range relative to the resources invested per student (lower, as SAT range is a measure of inequality, which we want to minimize as much as possible).
1) Analia thought of two different ways to define this quantity. Identify these two definitions among the following options.

Answers

SAT average divided by budget per student and
SAT average divided by teachers per student
Question 2:
Yes. According to both definitions, school A has the higher SAT average relative to the resources invested per student.

Which answer choice shows that the commutative property does not hold for matrix multiplication?

Answers

Given:

The matrix statements in the options.

To find:

The answer choice that show the commutative property does not hold for matrix multiplication.

Solution:

We known that matrix multiplication is not commutative. if A and B are two non-zero matrices, then

[tex]AB\neq BA[/tex]

Let us assume,

[tex]A=\begin{bmatrix}-1&-8\\-3&-5\end{bmatrix}\text{ and }B=\begin{bmatrix}1&3\\8&5\end{bmatrix}[/tex]

According to the above property of the matrix, we get

[tex]\begin{bmatrix}-1&-8\\-3&-5\end{bmatrix}\begin{bmatrix}1&3\\8&5\end{bmatrix}\neq \begin{bmatrix}1&3\\8&5\end{bmatrix}\begin{bmatrix}-1&-8\\-3&-5\end{bmatrix}[/tex]

Therefore, the correct option is B.

this is your correct answer

Find the profit or loss if:
Cost price = $19.85 Selling price = $20.20
tell me also wether it’s a profit or loss

Answers

Answer:

It would be a profit  of .35 cents

Step-by-step explanation:

Answer:

it is a profit by 0.35 cents

Step-by-step explanation:

That is becuase it costed you 19.85 so you ost 19.85 and gain 35 cents becuase you are selling it for a higher price

Which expression is equivalent to 2 3/5 divided by 7/9?

Answers

Step-by-step explanation:

[tex]2 \frac{3}{5} \div \frac{7}{9 } \\ \frac{13}{5} \times \frac{9}{7} \\ = \frac{117}{35} [/tex]

which expression has the approximate value between 6 and 7 clear the all the apply.
a.√36
b.√38
c.√42
d.√50​
please someone help me

Answers

i think it is a :))))) i’m not very sure i would get a second opinion

The expression has the approximate value between 6 and 7 will be √42 which is 6.48.

What is square root?

When the original integer is multiplied by itself, the result is a square root. The result generated when a quantity multiplies itself is known as the number of the square.

The expression has the approximate value between 6 and 7 clear the all the apply.

a. √36 = 6

b. √38 = 6.16

c. √42 = 6.48

d. √50​ = 7.07

The expression has the approximate value between 6 and 7 will be √42 which is 6.48.

Then the correct option is C.

More about the square root link is given below.

https://brainly.com/question/3120622

#SPJ5

Joan deposits $20,000 into a savings account that pays 4% annual interest compounded monthly. What will be the value of her deposit in 8 years?

Answers

Answer:

C jvbivy yvibiv

Step-by-step explanation:

Ctcyvu

Plssss help. High school mathematics

Answers

UT= 15
Hope it helps
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