determine if equation has one solution ,no solution ,or an infinite number of solutions justify the answer
-4 ( x + 2 ) = - 4x -5

Answers

Answer 1

Answer:

no solution

Step-by-step explanation:

- 4(x + 2) = - 4x - 5 ← distribute parenthesis on left side by - 4

- 4x - 8 = - 4x - 5 ( add 8 to both sides )

- 4x = - 4x + 3 ( add 4x to both sides )

0 = 3 ← False statement

This indicates the equation has no solution


Related Questions

(10, y) and (3, 4); m = - 2/7​

Answers

Answer:

2

Step-by-step explanation:

[tex]\frac{4-y}{3-10} = -\frac{2}{7}\\\\\frac{4-y}{-7} = -\frac{2}{7}\\\\4-y = -\frac{2}{7} * -7\\\\4-y = 2\\\\y = 4-2\\\\y = 2[/tex]

Feel free to mark this as brainliest! :D

Please help!

Select the only equation type that can be modeled as a continuous linear function

Question 1 options:

f(x)=12x

f(x)=5x−3

f(x)=x2−7

f(x)=f(x−1)×2, f(1)=4

Answers

Answer:

A.

Step-by-step explanation:

f(x) = 12x

since here, x>=0, the function will be continous as a linear And will have a straight lined graph

Solve for a. 50 - a/11 = 58

Answers

Answer:

a = -88

Step-by-step explanation:

50−  a/ 11  =58

50 + -1/11 x a = 58

-1/11 x a + 50 = 58

Subtract 50 from both sides

-1/11 x a - 50 (-50) = 58 (-50)

Now multiply both sides by 11/-1

(11/-1) x (-1/11 x a) = (11/-1) x 8

a = -88

There were 56 runners to start a race. In the first half of the race, 1/4 of them dropped out. In the second half of the race, 3/7 of the remaining runners dropped out. How many runners finish the race?

Answers

Answer:

24 runners

Step-by-step explanation:

If 1/4 of the runners dropped out, then 1 - 1/4 or 3/4 continued on. 3/4 of 56 or 3/4 *56 is 42 runners left. Then, out of these 42, 3/7 dropped out. This means 1 - 3/7 or 4/7 of the runners remained. This means that 4/7 * 42 or 24 runners finished the race.

HELPPPPP!!!! WILL MARK BRAINLIEST!!!!!!

Answers

(Points plotted and connected in picture below)

Slope: 9

The slope represents the total cost depending on the number of DVDs ordered.

Y-intercept: 6

PLEASE I NEED HELP!!!! ​

Answers

Answer:

x < 4

Step-by-step explanation:

The dotted line  is x = 4

The shaded area is below x = 4.

So, x <4

Is this correct? 3.81 estimated to a whole number is 4.

Answers

Answer:

yes it is correct

Step-by-step explanation:

Answer: Yes You are correct!

Step-by-step explanation:

If a number in the tenths place is greater than or equal to 5 then we round up. Ex: 1.90 would round to 2

If a number in the tenths place is less than or equal to 4 then we round down. Ex: 1.19 would round to 1

Since 8 is in the tenths place we round up. 3.81 would be 4 rounded to the nearest whole number.

You are correct

I am horrible at percentages, help (NO LINKS)​

Answers

Answer:

4.86

% I think I may be wrong tho.

Please help! A consumer survey conducted in two consecutive years determined that a fixed basket of goods and services cost $95.00 in year 1 and $96.25 in year 2.

The rate of inflation from year 1 to year 2 is _

Answers

Year 1 =old price =$95

Year 2 = new price = $96.25

The inflation rate is the difference in price between two Given period :

Inflation rate :

(Change in price / old price) * 100%

((New price - old price) / old price) * 100%

((96.25 - 95) / 96) * 100%

= (1.25 / 95) * 100%

= 0.0131578 * 100%

= 1.315%

PLEASE PLEASE HELP LIKE RIGHT NOW PLEASE :’)


Marco owed his father $150 and began paying him back $20 at the end of
each week, beginning November 1. Joni owed her father $130 and began
paying him back $15 at the end of each week, beginning on the same
day. What Marco owed his father in dollars at the end of n weeks can be
represented by f(n) = 150 - 20n. What Joni owed her father in dollars at the
-
end of n weeks can be represented by g(n) = 130 - 15n.
Find the value of n for which f(n) = g(n). What does that value mean in this
situation?

Answers

Answer:

The important clue here is when they say both The girls owe the same amount so what they mean is equate both the functions  

 

so we get

 

150 - 20n = 130 - 15n

 

 

Now n gives us the number of weeks so solve for n

 

20n - 15n = 150 - 130

 

5n = 20

 

n = 4

 

Now check your solution  

 

150-20(4) = 70

 

130 - 15(4) = 70

 

So our answer checks out after 4 weeks both girls who their dads the same amount of money .

Step-by-step explanation:

Answer:

can you help me with mine

Step-by-step explanation:

my is : 3,5,8,12 is it Arithmetic geometric or neither ?

If P = (-3,5), find the image
of P under the following rotation.
270° counterclockwise about the origin
([?], [])
Enter the number that belongs in
the green box.
Enter

Answers

I believe the answer is 3,5 if you are going counterclockwise

Answer:

(5,3)

Step-by-step explanation:

Simplify using positive exponents.

Please and thank you!

Answers

Answer:

B

Step-by-step explanation:

[tex](a^{m})^{n}=a^{m*n}\\\\\\(4^{-4})^{2}=4^{-4*2}=4^{-8} =\dfrac{1}{4^{8}}[/tex]

[tex]a^{-m}=\dfrac{1}{a^{m}}[/tex]

number 19. ...........​

Answers

The answer would be 5z^3

Find the measure of the angle formed between the base of the cone and a line segment that represents the slant height

Answers

Answer:90° right angle

Step-by-step explanation: 90° right angle is formed between the base and slant height of cone.

The point (-3, 9) is in the ____
quadrant

Answers

Answer:

II

Step-by-step explanation:

Answer:

I believe it is in the first quadrant.

Step-by-step explanation:

if you start in the negative x postitive y quadrant and go clockwise it would be the first one.


PLEASE HELP IT’S DUE TMR

Answers

Answer:

a) 12:12 simplified version is 1:1

b) 5:12:12 cannot be simplified

c) 12:5:12 cannot be simplified

d) 0.50:3.00:0.60

Step-by-step explanation:

Explain the error in Julie’s work in rewriting the radical expression.

Answers

Answer:

The negative numbers do not have square roots. Therefore the question does not have a solution. That is where Julie made a mistake.

Step-by-step explanation:

Answer:

-6

Step-by-step explanation:

First, let's take a look at this property:

[tex] \displaystyle \large{ \sqrt{a} \sqrt{b} = \sqrt{ab} }[/tex]

This only works for a and b ≥ 0.

As for a & b < 0 which results in Imaginary Number, we have to convert in 'i' form.

We know that:-

[tex] \displaystyle \large{ i = \sqrt{ - 1} }[/tex]

Thus:

[tex] \displaystyle \large{ \sqrt{ - 3} \cdot \sqrt{ - 12} = \sqrt{3} i \cdot \sqrt{12}i }[/tex]

Then we can multiply 12 & 3 in square root.

[tex] \displaystyle \large{ \sqrt{ - 3} \cdot \sqrt{ - 12} = \sqrt{36} {i}^{2} }[/tex]

We know that:

[tex] \displaystyle \large{ {i}^{2} = - 1}[/tex]

Convert i^2 to -1

[tex] \displaystyle \large{ \sqrt{ - 3} \cdot \sqrt{ - 12} = \sqrt{36}( - 1) } \\ \displaystyle \large{ \sqrt{ - 3} \cdot \sqrt{ - 12} = - \sqrt{36}}[/tex]

Then evaluate √36 which is 6.

[tex] \displaystyle \large{ \sqrt{ - 3} \cdot \sqrt{ - 12} = - 6}[/tex]

Therefore the answer should be -6.

Conclusion

Julie cannot use the √a√b = √ab property first because a & b both are < 0 and the property applies for a ≥ 0, b ≥ 0.

If (x+3)(x-5)=x^2 +mx-15, the value of m is...?
Pls explain the answer, thx!

Answers

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

let's solve :

first step : we have to expand the term in L.H.S

[tex](x + 3)(x - 5)[/tex][tex] {x}^{2} - 5x + 3x - 15[/tex][tex] {x}^{2} - 2x - 15[/tex]

now, let's equate the equations to find the value of m :

[tex] {x}^{2} - 2x - 15 = {x}^{2} + mx - 15[/tex]

value of m = -2

The value and the answer is m = -2

Find the angle
25 points for you plus a thanks, brainliest and 5 star

Answers

Answer:

36.656

Step-by-step explanation:

Calculate using trigonometry, Calculator may be required

Ok, so it's actually pretty easy

First of all, we know that all triangles' angles add up to 180 degrees

Here we can tell that we have one 90 degree angle and another 45 degree angle

Now, we can subtract both of these angles to then finalize that, the missing angle is equal to 45 degrees

Hope this helps :)

John has 3 fewer dimes than quarters. He has twice as many nickels as quarters. Altogether he
has $6.45, how many of each coin does he have?

Answers

You gotta divide $6.45 and 3 together to find the answer

resolve the factor a ^ 4 - 7a ^ 2 * b ^ 2 + b ^ 4​

Answers

A^4 b^2-7a^2+b^6/b^2

Someone plz help me :(

Answers

The answer is A on the x axis.

(-3, 0) means you move to the left to negative 3. Then go 0 up and down. So the point would still be on the x axis.

Which situation best represents the relationship between x and y
presented in the graph?

Ally made 15 pancakes at a rate of 6 pancakes per
minute.

An elevator starts on floor 6 and ascends at a rate of
1 floor per second.

Andrew has $6 to spend at the arcade. He spends $1
per game he plays.

O 1 inch of rain falls every hour for 6 hours.

Answers

Pancakes = 2.5

Elevator is only going up so 1/0

Game is the same as elevator

If hours is x than 1/6 if you is hours 6/1

QUICK QUESTION: is this right?

Answers

Answer:

C3H8 + 5O2 → 3CO2 + 4H2O

Step-by-step explanation:

Propane + Dioxygen = Carbon Dioxide + Water

Reaction Type

Combustion

guys pls help me!!!!!!

Answers

Answer:

120 degrees

Step-by-step explanation:

it is literally the same as the other side

Can somebody explain to me how to solve system of equations by substitution? I have an example as well. (-y=3x+4) (4y=x-1)

Answers

Step 1: Solve for one of the equations for either variable.

Step 2: Substitute the expression from Step 1 into the other equation.

Step 3: Solve the resulting equation.

Step 4: Substitute the solution in Step 3 into one of the original equations to find the other variable.

Step 5: Write the solution as an ordered pair.

Step 6: Check that the ordered pair is a solution to both original equations.

–0.28 − 10y = –8.3y + 6.01 how do u get y im so confused

Answers

Answer:

-y=3,7

Step-by-step expl

Easy math help pls iiiii

Answers

The answer is D= 3f/4h -g^3/4h


Please answer the question.

Answers

Answer:

hope you like my answer 4.24264

Plot the point (1.5, −3) on the coordinate plane.

Answers

Answer:

that it

Step-by-step explanation:

The Plot of the point (1.5, −3) on the coordinate plane is represented by Red dot in the attached graph.

How can we perceive cartesian coordinate plane?

The cartesian coordinate plane is an infinite 2 dimensional plane. Any 2 dimensional figure can be drawn on an infinite 2d plane. Each of the point of a cartesian plane is tracked by a location.

The cartesian coordinate plane is the perpendicular distance of that point from the horizontal axis and vertical axis, usually named x-axis and y-axis. The location is written as; (a,b), where 'a' is that point's shortest distance from the y-axis and called x-coordinate of that point, and 'b' is that point's shortest distance from the x-axis, and called y-coordinate of that point.

Given

Point: (1.5, −3)

Required to Plot the point (1.5, −3) on the coordinate plane.

The points can be rewritten as:

x --- f(x)

1 ---- 1

2 --- 2.5

3 ---- 6.25

The data under the x column are the domain of the function.

The Plot of the point (1.5, −3) on the coordinate plane is represented by Red dot in the attached graph.

Learn more about locating points here:

https://brainly.com/question/24198263

#SPJ2

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