Let a be a rational number and b be an irrational number. Is a+b rational or irrational?
Please HALP

Answer:

50

Step-by-step explanation:

intersection of 4 mins hits 50

Answer:37.5 is C

Step-by-step explanation:

You get this by using Butterfly method 80/100 = 30/x

Answer:

1. [tex]-3x^{2} +6x+4[/tex]

2. [tex]3x^{2} -19x-14[/tex]

Step-by-step explanation:

1. Just subtract them. (To subtract easier, ignore the variables and subtract regularly. When you're done go back and put the variables back in)

2. Foil

[tex](3x +2)(x-7)[/tex]

[tex]3x^{2} -21x+2x-14\\3x^{2} -19x-14[/tex]

Answer:

points

Step-by-step explanation:

I think this is invalid because it is a convenience sample. All of the 5th graders she asked were her friends, and they were all in the art club.

Answer:

option D

Step-by-step explanation:

option D is the correct answer of this question.

100% .

plz mark my answer as brainlist plzzzz plzz.hope this will be helpful to you .

if you find it useful.

Answer:

Step-by-step explanation:

The radius of the circle is ( r = 4) so

[tex]p = 2\pi \times r \\ p = 2(3.14)(4) \\ p = 25.12[/tex]

Answer:

176,400

Step-by-step explanation:

Answer:

It equals 176400

Whats 2 * 2 * 3 * 5 * 13 * 89

Step-by-step explanation:

Answer:

6.3

Step-by-step explanation:

Volume formula:

V = whl

V = 3.5(0.8)(2.25)

V = 63/10

Answer could be:

Answer:

y = ±5

x = ±6

Step-by-step explanation:

Here we have the system:

x^2 + y^2 = 61

x^2 - y^2 = 11

Notice that we have both variables squared, then we can define:

x^2 = X

y^2 = Y

And write our system as:

X + Y = 61

X - Y  = 11

To solve this, the first step is to isolate one of the variables in one of the equations, i will isolate X in the second equation:

X = 11 + Y

Now we can replace this in the other equation to get:

(11 + Y) + Y  = 61

Now we can solve this for Y

11 + 2*Y = 61

2*Y = 61 - 11 = 50

Y = 50/2 = 25

Y = 25

And remember that Y = y^2

then:

y^2 = 25

y = √25 = ±5

And using the equation: X = 11 + Y

X = 11 + 25 = 36

X = x^2 = √36 = ±6

Answer:

Ok, sabemos que Carlos ha construido un 3/7 de una casa.

Queremos saber cuanto le falta para terminar de construirla.

Entonces podemos realizar el cálculo:

1 casa - lo que Carlos ya construyo = Lo que le falta.

Entonces:

1 casa - 3/7 de una casa = X

Podemos reescribir:

1 casa = 7/7 de una casas

así tenemos:

7/7 de una casa  - 3/7 de una casa = X

(7/7 - 3/7) de una casa = X

4/7 de una casa  = X

Así podemos concluir que a Carlos le falta construir 4/7 de una casa para acabar.

Answer:

down here. I dont expect you to copy paste

Step-by-step explanation:

Arithmetic sequence: An arithmetic sequence is a sequence where each term increases by adding/subtracting some constant k.

Arithmetic series : An arithmetic series is the sum of a sequence in which each term is computed from the previous one by adding (or subtracting) a constant

Difference: A sequence is defined as an arrangement of numbers in a particular order. On the other hand, a series is defined as the sum of the elements of a sequence.

How to use them : maybe

Geometric Sequence : A geometric sequence is a sequence of numbers in which the ratio between consecutive terms is constant.

Geometric series : In mathematics, a geometric series is the sum of an infinite number of terms that have a constant ratio between successive terms.

Difference: A geometric sequence is a sequence of numbers in which the ratio between consecutive terms is constant.In mathematics, a geometric series is the sum of an infinite number of terms that have a constant ratio between successive terms.

How to use: maybe

Arithmetic and geometric difference: The main difference between arithmetic and geometric sequence is that arithmetic sequence is a sequence where the difference between two consecutive terms is constant while a geometric sequence is a sequence where the ratio between two consecutive terms is constant.

Average rate of change : To find the average rate of change, we divide the change in the output value by the change in the input value.

Sigma notation :Often mathematical formulae require the addition of many variables Summation or sigma notation is a convenient and simple form of shorthand used to give a concise expression for a sum of the values of a variable.

Graph: A continuous function allows the x-values to be ANY points in the interval, including fractions, decimals, and irrational values. A discrete function allows the x-values to be only certain points in the interval, usually only integers or whole numbers.

Answer:

=133

Step-by-step explanation:

1. Divide both sides of the equation by the same term

19=2527

2. Simplify

If you divide numbers you will get:

=133

And that's the answer

I hope this helps     :)

Answer:

omo

 ___

Step-by-step explanation:

Answer:

The degree is 6 and there are 2 terms

Answer:

(a) Coefficient of x

5

=−6

    Coefficient of x

2

=0

(b) Degree of polynomial = highest degree of monomial with non-zero coefficient =7

(c) Constant term = Coefficient of x

0

=−6

(d) Number of terms =4

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

if she connects it to any other point angle would be more the 30 degree

Answer:

Its D, 30 is acute and the arrow points to the right

Answer:

20%

Step-by-step explanation:

You would do 40/50 and then 40/50 is also 80/100. Then you'd take the remainder and that'd be the mark up price.

Answer:

15,625

Step-by-step explanation:

Answer:

15625

Step-by-step explanation:

Answer:

8x+13

Step-by-step explanation:

It goes through all, trust me. Put the equation and the point in desmos, a graphing calculator

Answer:

Tank A is filling faster

Step-by-step explanation:

On the graph, You can see that the line of tank A is rising far faster than tank B.

Answer:

Tank A is filling faster because it's a longer line.

Answer:

.567

Step-by-step explanation:

The original ratio is 21:37

Any ratio is a fraction

A fraction is a division problem

Rewrite the ratio as a fraction : 21:31---> 21/31

Divide 21 by 31 and you get .567

Step-by-step explanation:

I think this is helpful so you wanted by graphing and this is what I saw I hope it is helpful and good luck

Answer:

Step-by-step explanation:

graph is translated left by 8 units

Answer:

75.39822

Step-by-step explanation:

Answer:

The function has an initial population size of 60,000 which increase at a rate of 1%

Step-by-step explanation:

Given the expression :

f(x) = 60,000(1.01)^x

Since 1.01 > 1 (exponential

The general form of an Exponential growth function.

y = p(1 + r)^x

p = 60000 = initial population

1 + r = 1.01 ; where r = growth rate

r = 1.01 - 1 ; r = 0.01 =

r = 0.01 * 100% = 1% growth rate

Answer:

Step-by-step explanation:

The pentagon faces are made up of five triangle each with 9 ft bases and 6.2 ft heights. And there are five rectangular sides of 9 by 5 feet. So the total surface area is

A=2*5*9*6.2/2+5*9*5

A=279+225

A=504 ft^2

Answer:

Formula: nl(b + h) it is derived as well

504 ft²

Step-by-step explanation:

Each vertical face is a rectangle.

Area of each face = length x breadth = lb

For n-sided polygon, area of vertical faces = n x lb = nlb

For horizontal faces:

Observe: you can actually divide that face in 5 right-angled triangle(two edge point & centre form right angled ∆). [For n-sided, that's n right angled ∆]

For 2 such faces, you have 2 x n times of area of 1 ∆.

Area of 2n∆ = 2n( ½ x h x base(length)) = nhl

Total area = area of horizontal surfaces + area of vertical surfaces

Total area = nlb + nhl = nl(b + h)

Total area = 5*9(5 + 6.2) = 504 ft²

Answer:

option A is correct answer

divide both sides with 2

hope it helps

Answer:

option A is the right condition to be fulfilled to solve the equation.