Mathematics High School

у = - 2х
y = 8x — 10

Answers

Answer 1

Answer:

(1,-2)

Step-by-step explanation:

The pic above the answer is how I got my answer. if you need to show your work you can use that

Related Questions

What is 5 to the 9th power over 5 to the 3rd power?

Answers

Answer:

15,625

Step-by-step explanation:

Answer:

15625

Step-by-step explanation:

please help!!!! find the value of x

Answers

Answer:

The answer is x+2=7,

Step-by-step explanation:

because x is a variable

Formula is S=2nr squared
If r=7 and n=3.14,calculate S rounded off to two decimal places.

Answers

Answer:

307.72

Step-by-step explanation:

S=2nr²

S=2×3.14×7²

S=307.72

The store brought a pair of shoes for 40$ and sold it for 50$. What percentage was the markup?

Answers

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.

The answer here is going to be 20%

based on the graph how many pieces of popcorn were eaten per minute in the first 4 minutes

Answers

Answer:

Step-by-step explanation:

intersection of 4 mins hits 50

can someone help me ?

Answers

Answer:

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

Please help with systems of equations need super urgent
*Check the pic*

Answers

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

80% of c is 30. what is c?

Answers

Answer:37.5 is C

Step-by-step explanation:

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

19u=2,527. Solve the equation

Answers

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 :)

Don leaves home at 2pm. He drives 45 miles from home in the first hour. He stops for 90 minutes. He then drives home at an average speed of 15mph. Draw a distance-time graph to show Don's journey.
Brainliest if you want :)

Answers

Answer:

3pm-5pm-7.30pm

Step-by-step explanation:

(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?

Answers

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.

Triangle PQR is reflected across a line, P = (4,–5), and P’ = (–4, –5). What is the line of reflection?
the x-axis
the y-axis
the line y = x
the line y = –x

Answers

Answer:

it is b

Step-by-step explanation:

edge2021

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.

Answers

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

pls help me with this question. will give brainliest.

q)Calculate the length of the side marked x in each of the following.

Answers

Answer:

points

Step-by-step explanation:

x+2y=2
3x+4y=0
solve by graphing

Answers

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

If you need quick answers next time use Desmos they have a graphing calculator and a scientific one they both help me

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

Answers

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.

Veronikas five test scores are 59 80 95 and 93 if the outlier of 59 is removed what is the mean absolute deviation of the remaining four test scores?

Answers

Complete Question

Veronikas four test scores are 59, 80, 95, 88 and 93 if the outlier of 59 is removed what is the mean absolute deviation of the remaining four test scores?

Answer:

Step-by-step explanation:

We have the four test scores

80, 95, 88 and 93

Step 1

We find the mean of the 4 test scores

= 80 + 95 + 88 + 93/4

= 356 / 4

Step 2

The formula for Mean Absolute Deviation =

Summation( x - Mean)/n

Hence,

|(80 - 89 )+( 95 - 89) + (88 - 89) + (93 - 89)|/5

= 9 + 6 +1 + 4/4

= 20/4

= 5

Find the solution of the system of equations shown below. Show the work that leads to your answer. y = -2x x + y = 3

Answers

hope this makes sense and helps!

Someone help and please make sure the answer is right :)

Answers

I got x= -7. hope that helps you out!

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.

Answers

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

what is the effect of the graph of the function f(x)=x^2 when f(x) is changed to f(x+8)?

Answers

Answer:

Step-by-step explanation:

graph is translated left by 8 units

Which graph represents y as x as a function of x

Answers

the picture is not showing up shhsbehsjxvd

Answer: A

because yesterday I had a test and I got it right.

Step-by-step explanation:

Please help me I need to get this turned in now!!

Answers

Answer:

(25. 12) unit

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]

welppppppppppppppppppppppppppppppppppppppp

Answers

Answer:

They are all acute triangles or iscoles triangles

Step-by-step explanation:

please I need help ASAP

Answers

n=-4
................

what is 420 X 420 i'll give brainliest

Answers

Answer:

176,400

Step-by-step explanation:

Answer:

It equals 176400

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

Step-by-step explanation:

Find the volume of the box. HELP DUE AT 5:00PM

Answers

The answer
3.5x2.25x0.8=6.3

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] 6.3

find the total surface area, leave your terms in pi.

Answers

Answer:

75.39822

Step-by-step explanation:

solve this pls thank you

Answers

Answer:21

Step-by-step explanation:9+10=21

Answer:

ok nlol how u been

Step-by-step explanation:

What is the first common factor of 6 and 8.25?

Answers

Answer:

omo

___

Step-by-step explanation:

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у = - 2х y = 8x — 10

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у = - 2х
y = 8x — 10