Suzie solves the equation below:
x2 + 4x - 12 = 2
(x - 2)(x + 6) = 2,
by setting x -2 = 0 and x + 6 = 0.
Her solutions are x = 2 and x = -6.
Is Suzie correct? Why or why not?

Answers

Answer 1

Answer:

Suzie's answers are incorrect.

Step-by-step explanation:

x^2+4x-12=2

           +12  +12

x^2+4x=14

(if we put Suzie's answer in for x)-

2^2+4(2)=14

4+8=14

Suzie's first answer is incorrect (4+8=12)

Let's try the next one with Suzie's answer

(-6-2)(-6+6)=2

(-8)(0)=2

This answer is also incorrect. (-8*0=0)


Related Questions

What is the length of the Hypotenuse?

Answers

Answer:

It is 5

Step-by-step explanation:

prove me wrong |•-•|

5, it is the longest side

Which of the following equations have infinitely many solutions?

Answers

Answer:

A

Step-by-step explanation:

The only one with nothing else in front of the X, which means you can't divide, which means it stays the same.

Translate each phrase into an algebraic inequality:
Sandro's job pays him $11.25 per hour. Last week, his gross paycheck was $405.00. How many hours did he work?

Answers

Answer:

I don't know how to convert it but the answer as to how many hours is 36.

Select the reason why these triangles are
similar. If they are not, select "Not similar".
A. AA
B. SAS
C. SSS
D. Not similar

Answers

Answer:

The reason why these triangles are similar is;

A. AA

Step-by-step explanation:

A two column proof can be presented using the drawing of the question diagram created with Microsoft Visio as follows;

Statement      [tex]{}[/tex]                  Reason

[tex]\overline {AB}[/tex] ║ [tex]\overline {DE}[/tex]   [tex]{}[/tex]                      Given

∠ACB ≅ ∠DCE       [tex]{}[/tex]         Vertically opposite angles

∠BAC ≅ ∠DEC       [tex]{}[/tex]         Alternate interior angles theorem

∠ABC ≅ ∠CED       [tex]{}[/tex]         Alternate interior angles theorem

ΔABC ~ ΔCDE        [tex]{}[/tex]         By Angle-Angle (AA) similarity postulate

Therefore, the correct option is AA.

2.1.PS-14
Error Analysis A contractor purchases 7 dozen pairs of padded work gloves for $97.44. He
incorrectly calculates the unit price as $13.92 per pair for the expense report. What is the correct
unit price? What is the error?
The correct unit price is $
per pair

Answers

Answer:

Unit price = $1.16

His error was he divided $97.44 by 7 when in fact he should have divided 97.44 by 84

Step-by-step explanation:

7 dozen pairs

1 dozen = 12

7×12 = 84

97.44 ÷ 84 = 1.16

I’ll give Brainliest ? Please help

Answers

1 will equal 55 hope this helps
The answer for angle one is b

Which equation is the slope-intercept form of the line that passes through (1, 2) and is parallel to the graph of y = 8/3x?

Answers

Answer:

5

Step-by-step explanation:

it is five

please help im not that good during this online

Answers

Answer:

The angle is 50 degrees.

     

Selecting an SUV with a blue exterior?

Answers

1/12 is the answer there wasnt much specified but thats what i came up with and btw if your just asking a question i honesty dont think blue looks good on a suv :)

Answer:

yes

Step-by-step explanation:

Graph the linear equation using intercepts. Use a graphing calculator to check your graph.

equations: y= 2/3 x (-4)
y= 1/9x (-3)

Answers

Answer:

desmos .com

Step-by-step explanation:

Find the missing angle.​

Answers

Answer:

Pretty sure it's 21 degrees.

Step-by-step explanation:

Hope I helped!! :)

Sorry if it's wrong! :(

Pls mark brainlist!!!

Hello!

The answer is 21°

Since these are vertical angles, they are equal.

Have a great day!

what is the surface area of this square pyramid?

Answers

Answer:

The surface area of the square pyramid is 144m²

Step-by-step explanation:

the surface area pyramid is equal to SA = B + Ph/2

Iready: using a graph to analyze a functional relationship.
Describe the function between x = -4 and x = -1

Answers

Answer:

A

Step-by-step explanation:

Hello! The answer is linear and increasing !

Step-by-step explanation:

As you see on the graph it’s increasing ! And it’s linear !

How does 5 x(2)^n-1 simplify to 5/2 x (2)^n ?
Please help me

Answers

9514 1404 393

Explanation:

The applicable rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  1/a^b = a^-b

__

  [tex]5\times2^{n-1}=5\times(2^n)(2^{-1})=5\times2^n\times\dfrac{1}{2}=\boxed{\dfrac{5}{2}\times2^n}[/tex]

A piece of stpne on Planet Y weighs seven pounds, but on Earth it weighs only 4 pounds.
What would a 130-pound Earthling weigh on Planet Y?

Answers

The answer is 227.5

Because 7 is 175% of 4
So 175% of 130 is 227.5

Answer:

227.50

Step-by-step explanation:

can i have some help please( BRAINLLEST)

Answers

Answer:

2

-3

same thing

Step-by-step explanation:

I WILL GIVE YOU BRAINLY PLSS


The equation c = 3h + 50 is used to determine a gym membership fee. Use the
equation to find out how much it would cost if h = 10. c = total cost h =hours
A. c = $63
B. c = $160
C. c = $80
D. c = $60

PLSS SHOW YOUR WORK PLSS

Answers

Answer:

C

Step-by-step explanation:

h=10 so plug that into the given equation

c=3(10) +50

c=30+50

c=80

Answer: C, c = $80

Step-by-step explanation:

c = 3h + 50

c = 3 (10) + 50

c = 30 + 50

c = 80

The total cost is $80

Hope that helped!

Evaluate the expression 12 - 3y +420-4) for y = 3.
2

Answers

Answer:

56

Step-by-step explanation:

The laptop was marked down from $895 to $720.

Answers

Answer:

Wdym?

Step-by-step explanation:

Im confused

WILL MARK BRAINLIEST!! PLEASE HELP!!

Mr Wilkinson invests £3000 at a compound interest rate of 2.2% per annum.
He wants his investment to earn more than £800 interest.
Work out the least time, in years, that it will take

Answers

Answer: 12.1 years

Step-by-step explanation:

youd find 2.2% of 3000 which is 66 and then divide 800 by 66 to see how many years it would take to make 800 interest and you get 12.1 years. 90% sure on that answer btw

if the product of two number is 10 and the sum is 7 ,then the longest of the two number is​

Answers

Answer:

5 units

Step-by-step explanation:

Step one:

Given data

Le the first number be x

and the second number be y

So

x*y= 10-----------------1

and

x+y= 7-----------------2

from eqn 1

x= 10/y

put x= 10/y in eqn 2

[tex]10/y+y= 7\\\\10/y= 7-y[/tex]

cross multiply we have

[tex]10=y(7-y)\\\\10=7y-y^2[/tex]

rearrange

[tex]y^2-7y+10=0[/tex]

the factors of the quadratic expression are

-5 and -2

[tex]y^2-5y-2y+10= 0\\\\y(y-5)-2(y-5) =0\\\\y-2=0\\\\y= 2\\\\y-5= 0\\\\y=5\\\\[/tex]

The longest side is 5 units

Identify the slope and y-intercept of the equation.
y= 2x - 2
slope:
y-int:

Answers

Answer:

Slope: 2

y-intercept: (0, -2)

Step-by-step explanation:

The equation y=mx+b represents slope-intercept form. M = Slope, and B = The y-intercept.

Answer:

slope- 2

Y-intercept(0,-2)

Step-by-step explanation:

please help if you can

Answers

Answer:

No its not

hope it helps.

Which one of the following does not describe Aaron Burr?


made unwise decisions

was wanted for murder in two states

led the Senate

had a law practice

a brilliant politician

Answers

Answer:

Aaron Burr wasn't a brilliant politician.

Step-by-step explanation:

Aaron Burr was an American politician and the third Vice President of the United States from 1801 to 1805. In 1800, he ran for the Democratic-Republicans with Thomas Jefferson. Jefferson was supposed to be president and Burr vice president, but the then presidential election rules gave Jefferson and Burr equal votes in the Electoral College, and the election was ultimately decided in the House of Representatives. There, it were Jefferson and Burr's political rivals, the Federalists, who made the difference. Alexander Hamilton, the leader of the Federalists, eventually urged his party to back Jefferson, which helped make Hamilton and Burr deadly rivals. Burr had to settle for vice president under Jefferson.

On July 11, 1804, Burr challenged Hamilton to a duel in which Burr would fire the deadly shot. Burr was charged with murder in two states, but never prosecuted. After a short flight south, Burr returned to Washington to serve his term as vice president.  

After his term, Burr was suspected of involvement in a plot to create a separate republic in the then Southwestern US, headed by himself. For this he was arrested in 1807. He was tried for treason but was acquitted. After a stay abroad, Burr returned to New York in 1812 and resumed his career as a lawyer. He died in 1836 at the age of eighty and was buried in Princeton, New Jersey.

on election day ,register votes go to a polling place to cast their votes

Answers

Answer:

Elaborate?

Step-by-step explanation:

Uhhhhhhh im confused

Need Help!!!!!!!!!!!!!!

Answers

Answer:

Option a. id have other relations for them, but they are not listed, so their ya go.

Step-by-step explanation:

Answer:

You add 5 to get from x to y

Step-by-step explanation:

10+5 =15

13+5 = 18

16+5 = 21

Makiyha Martin
Janice bought a computer. She paid $780.00 plus sales tax. The sales
tax was 4%. How much did she pay in sales tax?

Answers

Answer:

$31.20

Step-by-step explanation:

1. Calculate the tax amount. To do this, you multiply the price by the tax rate.

$780 x 4% = $31.20

The total tax paid was $31.20

Answer:

B

Step-by-step explanation:

janice got ripped off buying a computer for $780.

she could have easily built her own computer with similar specs for less money or use the same amount of money to build a way better pc.

HELP PLZZZ!!!!! THank u! :)

(5 screenshots included)

Answers

#4 is 3rd answer , bc there is no such thing as xy together

Step-by-step explanation:

1. f(x) = 6x - 14

Slope is the coefficient of x

Slope = 6

2. f (x) =6x+ 9 +x

f(x) = 7x +9

Slope = 7

3. The last option because it is not a line.

4. The third option. x and y do not get multiplied in linear equations.

5. The last option.

the first one is y=x

the second one is y =-x

the third one is y=0x - 2

the last one is wrong because if x is - 1 or - 2 twice, it should still give the same vue for y.

I hope this helps.

Please gimme brainliest. Thank you

PLS PLS HELP ME I WILL GIVE BRAINLIST AND SO MANY POINTS PLS HELP ME

Answers

Answer:

Both are circle equations. One is for area, one is for circumference.

Step-by-step explanation:

Both are circle equations. One is for area, one is for circumference.

There is a vendor at a carnival selling bags of cotton candy. Each bag of cotton candy has the same cost. She starts each day with a certain amount of money to give change when necessary. After she sells a total of 12 bags, she has $128. After she sells a total of 20 bags, she has $160.

How much does the vendor charge per bag of cotton candy?

Answers

Answer:

The cost of each cotton candy bag is $4.

Step-by-step explanation:

Consider the provided information.

Let, the vendor has [tex]x[/tex] dollar at the starting of each day.

Let, the cost of each cotton candy bag is [tex]y[/tex].

Now when she sells a total of 12 bags, she has $128.

[tex]x+12y=128[/tex]  .....(1)

After she sells a total of 20 bags, she has $160.

[tex]x+20y=160[/tex]  ....(2)

Subtract equation 1 from equation 2.

[tex](x+20y)-(x+12y)=160-128[/tex]

[tex]8y=32[/tex]

[tex]y=4[/tex]

Hence, the cost of each cotton candy bag is $4.

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