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3 years ago

Write the absolute value equation if it has the following solutions. x = 2.5 and x = -3.5

Mathematics

1 answer:

Sonbull [250]3 years ago

7 0

Answer:

where's the equation? your question is missing some parts.

Step-by-step explanation:

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let a function F:A➡️B be defined by f(x)=x+1÷2x-1 with A={-1,0,1,2,3,4} and B= {-1,0,4/5,5/7,1,2,3,}.Find the range of f. plzzzz

lidiya [134]

Answer:

Range: {-1, 0, 5/7, 4/5, 1, 2}

Step-by-step explanation:

We know that:

f(x) = (x + 1)/(2x - 1)

And:

f: A ⇒ B

where:

A={-1,0,1,2,3,4}

B= {-1,0,4/5,5/7,1,2,3,}

We want to find the range of f(x).

The range of f(x) will be the set of the outputs of f(x) (and because f goes from A to B, we will only take the outputs that belong to B).

Then we only need to evaluate all the values of A in f(x), and see if the output belongs to B.

we have:

f(x) = (x + 1)/(2x - 1)

f(-1) = (-1 + 1)/(2*-1 - 1) = 0 (this does belong to B)

f(0) = (0 + 1)/(2*0 - 1) = -1 (this does belong to B)

f(1) = (1 + 1)/(2*1 - 1) = 2 (this does belong to B)

f(2) = (2 + 1)/(2*2 - 1) = 1 (this does belong to B)

f(3) = (3 + 1)/(2*3 - 1) = 4/5 (this does belong to B)

f(4) = (4 + 1)/(2*4 - 1) = 5/7 (this does belong to B)

So the range of f(x) is the set with all these outputs, which is:

Range: {-1, 0, 5/7, 4/5, 1, 2}

5 0

3 years ago

Help with my math please!!!

madam [21]

Answer:

x-12≤7

x≤19

Step-by-step explanation:

less than means it comes after

x-12

is at most means less than or equal to

x-12≤7

Add 12 to each side

x-12+12≤7+12

x≤19

7 0

3 years ago

Read 2 more answers

Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution? y = x+1 1 X+ 3 2.

Troyanec [42]

Answer:

D. (4, 5)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Solving systems of equations using substitution/elimination
Solving systems of equations by graphing

Step-by-step explanation:

Step 1: Define systems

y = x + 1

y = 1/2x + 3

Step 2: Solve for x

Substitute in y: x + 1 = 1/2x + 3
Subtract 1/2x on both sides: 1/2x + 1 = 3
Subtract 1 on both sides: 1/2x = 2
Divide both sides by 1/2: x = 4

Step 3: Solve for y

Define original equation: y = x + 1
Substitute in x: y = 4 + 1
Add: y = 5

Step 4: Graph

We can confirm our answer.

8 0

3 years ago

What percent is equivalent to the fraction and decimal below? Enter your

adoni [48]

Answer:

Percent = 20%

Step-by-step explanation:

Since we have a decimal form of 2/10, we can turn it into percentage by multiplying 0.20 by 100.

=> 0.20 by 100

=> 20%

Therefore, 20% is our answer.

Hoped this helped.

4 0

3 years ago

PLEASE HELP ME ON THIS PLZZZZZ!!!!!

Bogdan [553]

Answer:

-2,-9

Step-by-step explanation:

im not 100 perent sure ifthis is right or not

6 0

3 years ago

Read 2 more answers