Find the solution of the system of equations shown below. Show the work that leads to your answer. y = -2x x + y = 3
(WILL GIVE BRAINLIEST PLEASE HELP I HAVE A DBA AND THESE ARE THE QUESTIONS)
Do you know what an arithmetic sequence is? An arithmetic
series? What is the difference between the two?
Do you know how to use the formulas?
Do you know what an geometric sequence is? An geometric
series? What is the difference between the two?
Do you know to use the formulas?
What is the difference between arithmetic and geometric?
Do you know how to find the average rate of change?
What is sigma notation? What are the parts?
What does it mean for a graph to be discrete? Continuous?
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.
Please help with systems of equations need super urgent
*Check the pic*
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
please help!!!! find the value of x
Answer:
The answer is x+2=7,
Step-by-step explanation:
because x is a variable
Some one pls help need soon
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]
Which graph represents y as x as a function of x
Answer: A
because yesterday I had a test and I got it right.
Step-by-step explanation:
please I need help ASAP
based on the graph how many pieces of popcorn were eaten per minute in the first 4 minutes
Answer:
50
Step-by-step explanation:
intersection of 4 mins hits 50
x+2y=2
3x+4y=0
solve by graphing
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
Find the surface area
please show work
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
Formula is S=2nr squared
If r=7 and n=3.14,calculate S rounded off to two decimal places.
Answer:
307.72
Step-by-step explanation:
S=2nr²
S=2×3.14×7²
S=307.72
Someone help and please make sure the answer is right :)
Find the volume of the box. HELP DUE AT 5:00PM
Answer:
6.3
Step-by-step explanation:
Volume formula:
V = whl
V = 3.5(0.8)(2.25)
V = 63/10
Answer could be:
63/10[tex]6\frac{3}{10}[/tex] 6.3find the total surface area, leave your terms in pi.
Answer:
75.39822
Step-by-step explanation:
Name the polynomial by degree and number of term 7x^6+2x^5
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:
19u=2,527. Solve the equation
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 :)
can someone help me ?
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
What is the first common factor of 6 and 8.25?
Answer:
omo
___
Step-by-step explanation:
plz help i also have more questions up
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.
what is the effect of the graph of the function f(x)=x^2 when f(x) is changed to f(x+8)?
Answer:
Step-by-step explanation:
graph is translated left by 8 units
pls help me with this question. will give brainliest.
q)Calculate the length of the side marked x in each of the following.
Answer:
points
Step-by-step explanation:
what is 420 X 420 i'll give brainliest
Answer:
176,400
Step-by-step explanation:
Answer:
It equals 176400
Whats 2 * 2 * 3 * 5 * 13 * 89
Step-by-step explanation:
The store brought a pair of shoes for 40$ and sold it for 50$. What percentage was the markup?
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.
There are 21 Year 8 pupils in a music club, out of a total of 37 pupils.
Write this proportion as a percentage.
Give your answer correct to 1 decimal place when appropriate.
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
80% of c is 30. what is c?
Answer:37.5 is C
Step-by-step explanation:
You get this by using Butterfly method 80/100 = 30/x
carlos es un arquitecto y esta construyendo una casa si ha construido 3/7 de la casa le falta para acabarla es lo mismo que llegar a 7/7
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.
Please help me I need to get this turned in now!!
Answer:
(25. 12) unitStep-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]
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Answer:
They are all acute triangles or iscoles triangles
Step-by-step explanation:
What is 5 to the 9th power over 5 to the 3rd power?
Answer:
15,625
Step-by-step explanation:
Answer:
15625
Step-by-step explanation:
The population of Dawn land is changing exponentially. This change is modeled by the function f(x) = 60,000(1.01)x . Interpret the function to describe how the population changes. Explain how you know.
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