MATHEMATICS HIGH SCHOOL

Evaluate each expression for the given values of the variables. SHOW ALL WORK. -5(x+2y)+15(x+2y)

x=7

y=-7

Answers

Answer 1
Answer: Here you go if that helps.

Related Questions

Which shows the expression below in simplified form? (8.1 × 105) ÷ (9 × 102)
Hich expression is rational? a. 4.121221222… b.square root of 36 c. square root of 21 d.1.192744502…
The perimeter of a sheet of paper is 38cm. If the width is 8 cm what is the length of the paper?
How do I solve a quadratic equation like this: x squared minus 9x = -14?
What is the value of |−44|?

A set P consists of all natural numbers between 1 and 100, inclusive. Use set-builder notation to define P.

Answers

P = {P∈N|1≤x≤100}
hope it helps

Answer:

The set builder notation of P is:

P= { x∈N | 1 ≤ x ≤ 100 }

Step-by-step explanation:

Set-Builder notation--

A set builder notation is a representation of a variable in the form of a set such that it states all the properties that are satisfied by it.It may also be used to represent a interval notation of some variable.

i.e. if x∈ (-10,3)

Then the set builder notation is:

{x ∈ R | -10 < x < 3 }

Here we are given a set P as: It consists of all natural numbers between 1 and 100, inclusive.

i.e. it takes all natural values from 1 to 100 and also it may take 1 and 100.

Hence, the set-builder notation of P is:

          P= { x∈N | 1 ≤ x ≤ 100 }

Find slope of a line (1,7) (3,6)

Answers

Answer:

-1/2

Step-by-step explanation:

Use the slope formula.

y2-y1/x2-x1

Plug in the values and solve.

6-7/3-1 = -1/2

Answer:

m=-1/2

Step-by-step explanation:

(y2-y1)/(x2-x1)=m

(6-7)/(3-1)=m

m=-1/2

m is slope

This is about angles. Please answer someone?

Answers

Actually, this is not about angles.  It's about the length of the sides in a right triangle.

In EVERY right triangle, the squares of the lengths of the short sides add up
to the square of the length of the longest side.  You're in high school math,so
I'm SURE you've heard that in class before ... possibly even just before you
were assigned this problem.

Let's say that again:  The squares of the lengths of the sides that meet at
the  right angle add up to the square of the length of the longest side.  In
the triangle in this particular problem, that means
                                                                             a² + b² = c²

You know the lengths of 'b' and 'c', so you shouldn't have any trouble finding
the length of 'a'.

What's 2+2-7*22? i cant figure it out with mental math

Answers

The answer your looking -150
If its 7 times 22 then the answer is negative 36.

Ax+by=c, how would I solve for y

Answers

Solving for y means trying to get the equation into the form y= _____.  So, let's say that we are going to keep the y value on the left side of the equation.  

First, we would subtract ax from both sides.  This results in the equation by=c-ax.

Next, we figure out that y has a coefficient of b.  They are combined together by multiplication, so to undo this operation, we need to divide both sides by b.  

If done correctly, your final answer should be(c-ax)/(b).  Or, y=c-ax/b

Which of the following statements are true of literal equations? (mofre than 1 answer)They consist primarily of variables.
They are often called formulas.
They mostly use words.
They often describe real-world relationships.
They are hardly ever used.

Answers

The correct answers are:


They consist primarily of variables.

They are often called formulas.

They often describe real-world relationships.


Explanation:


Literal equations are defined as "equations in more than 1 variable whose variables represent specific quantities."


This means that literal equations consist mostly of variables.


Since the variables represent specific quantities, this means they typically represent real-life situations.


Since they represent real-life situations, these equations are often formulas for things in the real world (such as area, volume, perimeter, circumference, etc.)
The literal equations are those which made use primarily of variables to represent known values. These equations allow the use of variables instead of the true distance, time, slope, interest, etc. With literal equations, we are often asked for the value of one of the variables in terms of the other. Hence, the answer to this item is the first and the second one.
Other Questions
Tanx cosx = 015 POINTS!
What is the product of 2023 and 100,320
In forming a contract, "consider" is
Mandy, Brandy and Sandy all went out for ice cream. They ordered vanilla, chocolate and strawberry. Each girl ordered 1 flavor. Mandy did not order vanilla. Sandy did not order chocolate. Brandy always orders strawberry. Who ordered each flavor?