Please help (Math)......

Please Help (Math)......

Answers

Answer 1

[tex]|x|^2 -2|x|-3=0\\\\\implies |x|^2 - 3|x| + |x| - 3 =0\\\\\implies |x|(|x| -3) + (|x| -3) = 0\\\\\implies (|x| - 3)(|x| +1) =0\\\\\implies |x| -3 = 0~~ \text{Or} ~~ |x| +1 =0\\\\\implies |x| = 3 ~~ \text{Or}~~ |x| = -1;\\\\\text{For}~ |x|= -1 ,~\text{ there are no solution for } x \in \mathbb{R}\\\\\text{So,}\\\\|x| = 3 \implies x = \pm 3[/tex]


Related Questions

• The outside temperature changes -4.8°F in 4 hours. What is the average change in temperature each hour?


-19.2°F

-12.2°F

-1.8°F

-1.2°F

Answers

Answer:

-1.2°F

Step-by-step explanation:

-4.8F = 4 hours

Divide both sides by 4 to get one side to 1 hour

-4.8F/4 = 4 hours / 4

-1.2F = 1 hour

The average change in temperature each hour is -1.2°F

What is Division?

A division is a process of splitting a specific amount into equal parts.

Given that the outside temperature changes -4.8°F in 4 hours

We need to find the average change in temperature each hour

To find this we need to use division.

We need to divide -4.8 by 4

-4.8/4

Minus four point eight divided by 4

-1.2

Hence, the average change in temperature each hour is -1.2°F

To learn more on Division click:

https://brainly.com/question/21416852

#SPJ5

Which condition in the figure below will
prove l || m?

Answers

Step-by-step explanation:

option C is correct

hope this answer helps you! take care

Answer:

0ption C is correct hope it correct have good day

Step-by-step explanation:

What is the equation of the line that passes through the point (-5,1)(−5,1) and has a slope of -\frac{1}{5}−5​

Answers

Answer:

Step-by-step explanation:

I will interpret "-\frac{1}{5}−5​" as -(1/5).

We'll look for an equation by starting with the slope intercept format of:

y = mx + b,

where m is the slope and b is the y-intercept (the value of y when x=0).

We are given the slope of -(1/5), I think.  

The equation becomes y = -(1/5)x + b

We want to find a value of b that will force the line to go through point (-5,1).  Do this by putting this point into the equation we have thus far:

y = -(1/5)x + b

1 = -(1/5)*(-5) + b   [point (-5,1)]

1 = 1 + b

b = 0

The equation becomes y = -(1/5)x + 0, or y = -(1/5)x

See the attachment.

Directions: Write the expression for each sentence below.

1. the sum of 6 and t = 6 + t

2. the product of y and 11

3. the difference of 4 from 12

4. the quotient of 6 divided by t

5. 19 less than 25

6. increase s by 2s

7. decrease 11 by r

8. add 6 times x and 2 times s

9. the quotient of 17 minus 12 and 2

10. the product of 3 and x less 10

11. the product of 7 and 2 divided by 2

12. decrease the product of 7 and 6 by a number

Answers

Answer:

y-4??

Step-by-step explanation:

Katie buys a large pizza for $14.99 and bottles of soda for $1.50 each. If the total cost was $23.99, how many bottles of soda (b) did she buy

Answers

The number of soda bottles Katie bought is 6

The given parameters are:

Large Pizza = $14.99Soda = $1.50 per bottleTotal cost = $23.99

Assume the number of soda bottle is x.

So, we have:

[tex]Total = Pizza + Soda \times x[/tex]

This gives

[tex]23.99 = 14.99 + 1.50\times x[/tex]

Subtract 14.99 from both sides of the equations

[tex]9 = 1.50\times x[/tex]

Divide both sides of the equations by 1.5

[tex]6=x[/tex]

Rewrite the equation as

[tex]x = 6[/tex]

Hence, the number of bottles is 6

Read more about linear equations at:

https://brainly.com/question/14323743

A car travels 10 km southeast and then 15 km in a direction 60° north of east. Find the magnitude of the car's resultant vector.​

Answers

Answer:

-10sin45+15cos60=Hor distance = 5.92 km

-10cos45+15sin60=ver distance = .429 km

resultant is sqrt(5.922+.4292)= 5.94 km at angle arctan(.429/5.92)= 1.77 degrees north of east

Step-by-step explanation:

answer???? i need help asap

Answers

Answer:

what kind?

Step-by-step explanation:

Answer:55

Step-by-step explanation:

55

How i can answer this question, NO LINKS, if you answer correctly i will give u brainliest!

Answers

Answer: A. they will have too much butter

Step-by-step explanation: to much

Marty was renting a boat and wanted to get the best plan. Rental plan A charges a fee of
$50 plus $25 per hour. Plan B charges a fee of $10 plus $35 per hour.
Using systems of equations, answer the following questions. Show all your work.
Part A: Write a system of equations the represent the situation. (Be sure to identify the
variables.)

Answers

Answer:

?

Step-by-step explanation:

i'm sorry  i'm just trying to get points this is my test and i need to know the answer and then i found the " Add answer ( 5 points ) and it was like calling my name so i am here now...bye

The system of equations that represent the situation are as follows;

C = $50 + $25h

C = $10 + $35h.

According to the question;

Mary was trying to rent a boat and wanted to get the best plan.

Let C = Charged fees

and h = hours of rental

For Plan A:

Rental plan A charges a fee of$50 plus $25 per hour.

C = $50 + $25h

For Plan B:

Plan B charges a fee of $10 plus $35 per hour.

C = $10 + $35h.

Read more on rental charges;

https://brainly.com/question/1503197

help me Kaite bought 3 DVD's for $ 45. What was the cost of each DVD's

Answers

Answer:

45/3 = 15

They each where $15

Hope that helps

Step-by-step explanation:

Answer:

$15

Step-by-step explanation:

All you need to do is divide 45 by 3 and you get 15

My I please have some help
Simplify (89^6 x 91^3)^0

1
(89^6 x 91^3)
0
(89^7 x 91^4)

Answers

Answer:

Any number(except 0) to the power 0 is equal to 1. So the the answer is 1.

Step-by-step explanation:

Guys this is the last question for the day please help me out.

Answers

Answer:

So it's 350 - D - B.

And 350 - A - D.

Hope that helped?


help with steps
questions on image​

Answers

Answer:

24

Step-by-step explanation:

all odd numbers possible: 1, 3, 5, 7

__ __ __ __

there are 4 possibilities for the first blank

for the second blank there are 4-1 = 3 possibilities as one of the numbers will have been used

for the third blank there are 4-2 = 2 possibilities as 2 of the numbers have been used

for the last blank there is only 1 possibility

so the number of solutions possible is 4 x 3 x 2 x 1 = 24

View the lane below and calculate the slope
by using the slope formula

Answers

Answer:

slope = 4

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (3, 12) ← 2 points on the line

m = [tex]\frac{12-0}{3-0}[/tex] = [tex]\frac{12}{3}[/tex] = 4

Answer:

The slope of this line is 4.

Step-by-step explanation:

Pick any 2 points on the graph you want, just make sure they land perfectly on where the line meets the grid. I'll pick (1, 4) and (2, 8) here.

The slope formula is:

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

where (x1, y1) and (x2, y2) are the first and second points you picked above. Now, all you need to do is plug those 2 points into the formula and solve.

[tex]m=\frac{8-4}{2-1}\\\\m=\frac{4}{1}\\\\m=4[/tex]

The slope of this line is 4.

whats 5 plus 6, i cant find out, its hard

Answers

5+6= 11 , good luck

Answer:

its 11

Step-by-step explanation:

because when you add 6 and 5 your answer will be 11 and its very easy and clear

How is 6% expressed as a fraction in lowest terms

Answers

6% expressed as a fraction in lowest terms is 3/5

Solve the system of equations by graphing.
y = 3x - 2
x + y = 6

Answers

x+3x-2=6
4x-2=6
4x+8
x=2

Hope this helps

what is 25 divided by 4(bonus question)

Answers

Answer:

6.25

Step-by-step explanation:

solve the inequality and graph its solution.

Answers

Answer:

D

Step-by-step explanation:

Hope this helped! :D

An Ipad that costs $500 is on sale for 15% off. Then has a 6% tax. What's the final price?​

Answers

Answer:

subject tooo

Step-by-step explanation:

sorry

Answer:

$450.50

Step-by-step explanation:

Write the equation of the line with a slope of 3 and passes through the point (0,5).
Answer can be in either slope-intercept
form or point-slope
form

Answers

Answer:

y=3x+5

Step-by-step explanation:

y-y1=m(x-x1)

y-5=3(x-0)

y-5=3(x)

y-5=3x

y=3x+5

Note that the slope intercept form is y=mx+b where m=slope and b=y-intercept.

If you're satisfied with the answer, then please mark me as Brainliest. Thank you.

After a rotation, A(-3,4) maps to A/4, 3), B(4.-5) maps to BY-5,-4), and C(1,6) maps to C(6.-1). Which rule
describes the rotation?
O RO 90
O Ra 180°
O Ro 270
ORO 360°

Answers

Answer:

3rd option

Step-by-step explanation:

Under a rotation about the origin of 270°

a point (x, y ) → (y, - x ) , then

A (- 3, 4 ) → (4, - 3 )

B (4, - 5 ) → (- 5, - 4 )

C (1, 6 ) → (6, - 1 )

The center of rotation is therefore (h, k) = (1/2, 7/2), and the rule for the rotation is R90 (a 90-degree counterclockwise rotation about the point (1/2, 7/2)).

What is coordinate plane?

The coordinate plane is a two-dimensional plane formed by the intersection of a horizontal number line, called the x-axis, and a vertical number line, called the y-axis.

The given information suggests that each point has been rotated 90 degrees counterclockwise around some point (h, k) on the coordinate plane.

To find this point, we can use the fact that the midpoint of the line segment joining each point to its image must be the center of rotation.

Midpoint of segment AA'/4: ((-3 + 4)/2, (4 + 3)/2) = (1/2, 7/2)

Midpoint of segment BB'/5: ((4 - 5)/2, (-5 - 4)/2) = (-1/2, -9/2)

Midpoint of segment CC'/6: ((1 + 6)/2, (6 - 1)/2) = (7/2, 5/2)

Thus, the center of rotation is therefore (h, k) = (1/2, 7/2), and the rule for the rotation is R90 (a 90-degree counterclockwise rotation about the point (1/2, 7/2)).

For more details regarding coordinate plane, visit:

https://brainly.com/question/13611766

#SPJ7

X=8,2x+y=12 solve by substitution show work

Answers

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

Let's substitute the value of x as 8 in the given equation to find the value of y ~

[tex] \sf2x + y = 12[/tex]

[tex] \sf(2 \times 8) + y = 12[/tex]

[tex] \sf16 + y = 12[/tex]

[tex] \sf y = 12 - 16[/tex]

[tex] \sf y = - 4[/tex]

describe this graph of a Ferris wheel

Answers

Answer:

A wheel completes a rotation when it moves 360 degrees. The descriptions of the graph are: The Ferris wheel will rotate 4 times.

Step-by-step explanation:

but what graph

The Ferris wheel makes 4 rotations.

The maximum points on the graph represent when the Ferris wheel is at the top, and the minimum points on the graph represent when the Ferris wheel is at the bottom

What is the unit of time (t) when calculating interest?

Answers

Answer:

t = time in decimal years; e.g., 6 months is calculated as 0.5 years. Divide your partial year number of months by 12 to get the decimal years.

Step-by-step explanation:

 


Which of the following is NOT a solution to the
inequality |-3x + 3) > 6?
A. -4
B. -3
C. -2
D. 3
E. 4.

Answers

Answer:

B

Step-by-step explanation:

who is better Green Bay packers or the bears

Answers

Answer:

green bay packers all dayyy

Step-by-step explanation:

Today, everything at the store is on sale. The store offers a 20% discount
If the regular price of an item is x dollars, what is the discount price in dollars?

Answers

Answer:

.8x dollars

Step-by-step explanation:

Twenty percent off means you are paying 80 percent of every dollar, and 80 percent translates to .8 to 1 as a proportion.

Answer:

$.80x

Step-by-step explanation:

0.80x

Sixth grade
X Factor numerical expressions using the distributive property. MX2

Which expression shows a way to factor 63 + 49?
21(3 + 2)
7(9 + 7)
9(7 + 6)
3(21 + 16)

Answers

Hey there!

“63 + 49”

21(3 + 2)

= 21(3) + 21(2)

= 63 + 42

= 105

Option A. isn’t the answer because the equation for that is: 63 + 42

7(9 + 7)

= 7(9) + 7(7)

= 63 + 49

= 112

Option B. could possibly be your answer

9(7 + 6)

= 9(7) + 9(6)

= 63 + 54

= 117

Option C. isn't your answer because the equation for that is: 63 + 54

3(21 + 16)

= 3(21) + 3(16)

= 63 + 48

Option D. isn’t your answer because the equation for that is: 63 + 48

Thus, this makes makes [Option B. 7(9 + 7)] is your answer

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Pick the corrrect one form the dropdown

Answers

Answer:

hard

Step-by-step explanation:

you're correct

Other Questions
Which list below shows a way in which a 13-foot piece of pipe can be cut, to create 3 pieces that will form a triangle?1 ft, 3 ft, 9 ft3 ft, 3 ft, 7 ft2 ft, 3 ft, 8 ft2 ft, 5 ft, 6 ft All you need is on the photo Please don't answer randomly if you answer randomly you are gonna lose points Here is a diagram of the digestive system. Where do you think lactase would be most effective? Explain. Be sure to consider the amount of time lactose/food would spend in each area. -10 , -6 , -2 , 2 , _____ this sequence in an A.P.? why? The leakiest capillaries, which allow large substances and cells to cross the capillary wall, are called ________________. I need help with writing a case analysis report. can someone please be of help? Will mark brainliest!!!Read the excerpt from paragraph 1.We remember a time when the Potomac River was choked with algae. When Lake Erie was dying. When too many coastal waters were degraded. When too many urban rivers and beaches were open sewers. When too many communities didn't have clean, safe water they could depend on.Which two statements describe how Gore uses rhetoric to advance a point of view in this paragraph?He uses the bandwagon appeal to suggest that he is part of a group of people who are making good environmental choices.He uses ethos to establish credibility and build the audience's trust about his environmental expertise.He uses logos to build a reasonable argument about the importance of environmental policy.He uses parallelism to emphasize some of the environmental problems Americans had to solve.He uses figures of speech to encourage the audience to imagine new environmental futures.He uses pathos to provoke the audience's emotional response toward environmental problems. How do you know that an object in space is moving through the sky? rt gn (x-4) (x-3) -x(x+5) +82 Mrs. Hussen has two similar recycling bins in her office. The dimensions of the smaller bin can be found by dilating the dimensions of the larger bin by a scale factor of 0.75.ANSWER QUICKLY PLZ :) Human emotions can be primary or learned. A learned emotion is complex while a primary emotion is basic and instinctual. Which of the following is a primary rather than a learned emotion?A. fearB. guiltC. loveD. shameneed it for my exam Use the phrase from ex 2 to complete the sentence divers have discovered important PLS HELP ASAP ILL GIVE BRAINLKEST THANKS PLZZZZZZZZZZ HELP ASAPABC Order and Definitions1.React2.Shift 3.Specify 4.Thesis5.audience6.format 7.purpose8.introduction9.focus10.conclusion11.influence12.fleeting13.mentorship14.normal15.participate 16.positive 17.circumstantial18.emotional19.contagion20.fleetingExtra CreditWrite down 45 affixes containing the sufffix:-or-ment-ness HELLPPPPPP ASAP PLEASE I actually need help- which sentence is an example of stage directions? To test a new drug that has the potential of curing people of the commoncold a company asked human volunteers who were coughing and sneezingto participate in a clinical study. The objective of the experiment was to testwhether the new drug could cure the volunteers in the experimental group ofthe common cold. But instead of two groups, these volunteers were randomlydivided into three groups and treated as follows:GroupExperimentalGroupYesControlGroup 1NOControlGroup 2NoNew ONSOrangeBedreYesNoYesYesWhich of the following is the best explanation of why a second control groupwas included in this experiment?O A To prove that the common cold cannot be curedB. To provide the volunteers in the study with something to drinkO C. To help researchers conclude that results are related to the newdrug and not to the orange juiceO D. To confuse anyone who is trying to steal their new drug and sell itas their own invention what is the total tax a person or business has to pay called? PLS ANSWER AS SOON AS POSSIBLE AND I WILL MARK U AS BRAINLIST