A teacher wrote the following set of numbers on
the board:
20 b = 2.5
Explain why a +b is irrational, but b + c is rational.
a= V20
C= 225

Answer:

15 / ( 15 + 10 + 12 )

= 15 / 37

Hope it helps

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Thank you

Step-by-step explanation:

it is not distributive because distributive is distributing a certain number into parentheses or if you have an exponent that would be distributing. it is also not subtraction. i am really sorry i dont know the full answer but i wanted to help as much as i possibly could i felt sad just scrolling by. i hope it helps you have a 50 50 now so i hope this helps

Answer:

(a+(3c))+b

Step-by-step explanation:

i did this for you already in the comments of the other question

was i right? or no?

Answer:

28 mm

Step-by-step explanation:

All sides of a rhombus are equal in length and there are 4 sides so do 7 * 4 = 28mm.

Answer:

Perimeter of Rhombus: 28mm

Step-by-step explanation:

If one side of a Rhombus is 7mm, then its perimeter is 28 because all sides of a Rhombus is equal.

Hoped this helped.

First approach :

The above series can be seen as

1600 , (1600–400) 1200, (1200–300) 900 .

So we see that the values are getting decreased by 400,300 respectively.

Hence the next term in the sequence will be 900–200 = 700.

Other approach could be :

A geometric progression with ratio as 3/4.

1600*(3/4) = 1200

1200*(3/4) = 900

900*(3/4) = 675

Taking the above two approaches in mind,the two possible answers could be 700 or 675

Um- here ya go

The 20th term of the sequence.

1600, 1200, 900, ..., is 6.76.

A unique kind of sequence called a geometric sequence has a constant ratio between every two succeeding terms. This ratio is regarded as one of the geometric sequence's common ratios.

aₙ=a₁(r)ⁿ⁻¹

Given:

A geometric sequence,

1600, 1200, 900, ...

To find the common ratio:

take the ratio of successive terms

r = The value of the second term / the value of the first term

r = 1200/1600 = 0.75.

The explicit formula of a geometric sequence is,

aₙ=a₁(r)ⁿ⁻¹

aₙ= 1600(0.75)ⁿ⁻¹

a₂₀ = 1600(0.75)¹⁹

a₂₀ = 6.76

Therefore, the 20th term is 6.76.

To learn more about the geometric sequence;

https://brainly.com/question/11266123

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Answer:

Infinitely many solution

Step-by-step explanation:

Simplify

2x - 4 = 2x - 4

Lets see:

if we put 1:

2 - 4 = 2 - 4

-2 = -2

Now lets try another number : 2

4 - 4 = 4 - 4

0 = 0

So we can say that there is more than one solution

this cancels out single solution and no solution

There are infinitely many solutions to the given algebraic expression 2x - 4 = 2(x - 2).

The algebraic expression is an expression that is composed of variables and their arithmetic operations.

From the given parameters

Open brackets

Since we are having the same algebraic expression on both sides;

Then, we won't be able to get exactly one solution but an infinite number of solutions.

This is because any number that is being substituted for the value of x will always give a different solution.

Learn more about algebraic expression here:

https://brainly.com/question/4344214

Answer:

10.4 or 52/5 or 10  2/5

Step-by-step explanation:

Answer:

I got 2/5

Step-by-step explanation:

Hope I helped.

Answer:

112 [tex]cm^{2}[/tex]

Step-by-step explanation:

A=bh

A=14*8

A=112

Answer:

$36570

Step-by-step explanation:

The original price is 34500, so the %given must be the increase in price :

34500x(1+6%)

=34500x1.06

=36570//

Answer:

-9,-10

Step-by-step explanation:

The X is on the axis and nothing will change, and the Y will flip sides.

The coordinates of the point after being reflected across the x-axis are (-9, -10).

When a point is reflected across the x-axis on a coordinate plane, its y-coordinate changes sign while its x-coordinate remains the same.

The original point is (-9, 10).

After reflecting across the x-axis, the y-coordinate changes sign, so the new point becomes:

(-9, -10).

So, the coordinates of the point after being reflected across the x-axis are (-9, -10).

To know more about coordinates;

https://brainly.com/question/33635791

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Answer:

(x+1)(2x2−x+6)

Step-by-step explanation:

Answer:

The list price of each TV would be $ 350.57.

Step-by-step explanation:

Since KOFI electronics bought a shipment of TVs at a net price of $ 477.36 each, to determine the list price after discounts of 15%, 10%, and 4%, the following calculations must be performed:

100-15 = 85

477.36 x 0.85 = 405.756

100-10 = 90

405.756 x 0.9 = 365.1804

100-4 = 96

365.1804 x 0.96 = 350.573184

Thus, after the discounts were made, the list price of each TV would be $ 350.57.

Answer:

It's 1080 miles.

Step-by-step explanation:

All you need to do is multiply the length and width together to get the area.

A = l*w would be the formula.

Answer:

9(w+8)  factor 9

Step-by-step explanation:

factor expression

9w+72  divide both side by 9

9/9w+72/9

w+8

Answer:

9 (w + 8)

I'm sorry I can't explain it but here's the answer

Answer:

A. parallelogram

Step-by-step explanation:

Answer:

Hope this Helps! Also Answer is 1.1

Step-by-step explanation:

Answer:

the last one

Step-by-step explanation:

Answer:

1 gallon and 1 pint

Step-by-step explanation:

I guess that the actual amount of water needed per player is 1/8 of gallon and not 18 gallons.

You will need to bring 9 x 1/8 = 9/8 = 1 ¹/₈ gallons or 1 gallon and 1 pint

1 gallon = 4 quarts = 8 pints = 16 cups = 128 ounces

or

1 gallon = 3.785 liters

The US is one of the few countries (along with Liberia, and Myanmar) that still uses the imperial system to measure things, e.g. inches, feet, yards, pounds, miles, pints, gallons, etc. The rest of the world uses the metric system, e.g. meters, liters, kilograms, etc.

Answer:

8

Step-by-step explanation:

Answer:

Mrs.Flossi is having 8 teams

Step-by-step

the full question wasent there but i did it on I-Ready nd got it correctly i hope this helps

Answer:

Step-by-step explanation:

Combine like terms in 2x^2-5x+1=x+4:  2x^2 -6x - 3 = 0

The coefficients of this quadratic are {2, -6, -3}.  Apply the quadratic formula.  Start by finding the discriminant, b^2 - 4ac:

b^2 - 4ac = (-6)^2 - 4(2)(-3) = 36 + 24 = 60

Because the discriminant (60) is positive, we know that this quadratic has two real, unequal roots:

      -(-6) ± √60          6 ± (√4)(√15)

x = -------------------- = ----------------------

             2(2)                         4

or:

      6 ± 2√15            3 ± √15

x = -----------------  =  ----------------

              4                       2

Answer:

x = 12.5

Step-by-step explanation:

Cross multiply and solve for x

Answer:

x=12.5

hope this helps:)

Answer:

0

Step-by-step explanation:

The range is the difference between the lowest and highest values. Since 9 is still the highest value, the range would not change by any amount by replacing 7 with 9.

Answer:

the 3rd one is the true one

Answer:

I wont give you the answers, but i will show you how

Step-by-step explanation:

add all the numbers together and then when you want to find a probability make them fractions

for example:

P(blue eyes): 12/80

then simplify the fractions

Answer:

Answer J

Step-by-step explanation:

To simplify the concept, we can change the inequality to y+3 >= 5. The variable "y" is "-1/2(x)" We know that y must be greater than or equal to "two." The only way this is possible is if x itself is equal to or less than -4.