Mathematics High School

Which of the following are solutions to the equation below?
Check all that apply
x2 + 4x + 4 = 12

Which Of The Following Are Solutions To The Equation Below?Check All That Applyx2 + 4x + 4 = 12

Answers

Answer 1

Answer:

         C.  2√3 - 2

Step-by-step explanation:

[tex]x^2 + 4x + 4 = 12\\\\x^2+2\cdot x\cdot2+2^2=12\\\\(x+2)^2=12\\\\x+2=-\sqrt{12}\quad\vee\quad x+2=\sqrt{12}\\\\x=-2\sqrt{3}-2\quad\vee\quad x=2\sqrt3-2[/tex]

Related Questions

Is this statement true or false 16% of 250 is equal to 250% of 16

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True!!!!!!!!!!!!!!!!!!!!!

Theoretically, how many times will the spinner land
on the number 4 if it is spun 28 times?

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How many numbers are on the spinner if 4 then 7 times

Spencer bought 3 books of stamps and mailed a package. It cost 4.50 to mail the package. Define a variable and write an expression to represent the total amount he spent at the office.

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Does the question have a picture or Anything?

Juan read for ⅚ of an hour, Larissa read for 10/12 of an hour. Who read for a longer period of time?

Answers

Answer:  They read for a equal amount of time.

Step-by-step explanation:

10/12 simplifies to 5/6, making these equal.

Proof:

10 divided by 2 equals 5, and 12 divided by 2 equals 6. This means that they are equal.

Can someone help me please?

Answers

Answer:

Right Triangle and isosceles

Step-by-step explanation:

It is a right triangle given the 90° angle, but it is isosceles because only 2 of the sides are of equal length.

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Answers

Answer: C

Step-by-step explanation:

The ratio of yellow sweets to purple sweets is 5:4.

Alice eats 3 purple sweets and the ratio is now 5:3.

Work out how many sweets there were at the beginning.

Answers

Answer:

I DUNNO

Step-by-step explanation:

what is 50 - 30%= i forget how to do it :C

Answers

Answer:

just do 50 times 0.3 your answer should be 15. subtract 15 from 50 and you'll have your answer 35.

divide $200 in the ration2:3.what is the results​

Answers

Answer:

$80:$120  I think that is the answer

Complete the similarity statement with capital letters.

POSN ~ ??

Answers

Answer:

POSN ~ KDAG

Step-by-step explanation:

To determine the answer take each vertex in an order using one orienteer like angle or side measure .

PO ~ KD or OS ~ DA and so on.

The similarity statement is as follows:

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How many solutions does this equation have? 3y = –4 + 2y

Answers

Answer:

4

Step-by-step explanation:

3y - 4 + 2y

0 = 3y - 4 + 2y

4 + 0 = 3y - 2y

4 = y

y = 4

is this what you want ?

Answer:

y=-4, one solution.

Step-by-step explanation:

3y=-4+2y

3y-2y=-4

y=-4

Plz Help! NUmber 1 and 2! Brainlist for right answer!

Answers

Answer:

1 plain plain 2 ham chips

Kevin cuts a foam block along the red line. When he looks at the newly exposed face, what is the shape of the cross section?

Answers

a circle is the shape of the cross section

10 + 7m = 17
What operation would you perform first and then second when solving for m in the following equation??

Add 10,multiply by 7
Or
Divide by 7,subtracts10
Or
Multiple by7,add10
Or
Subtract10,divide by 7

Answers

subtract 10 and divide by 7

Answer:

Subtract 10, divide by 7

Step-by-step explanation:

You’d subtract 10 from both sides to remove 10 from the left side of the equation.

Then you’d divide by 7 on both sides to isolate the variable (m).

Hope this helped :)

arcsin0=? arccos0=? arctan1=?​

Answers

Answer:

arcsin0= 0 degrees

arccos0= 90degrees

arctan1= 45 degrees

Step-by-step explanation:

To get arcsin0, let the unknown value be x

sin x = 0

Take arcsin of both sides

arcsin(sinx) = arcsin 0

x = arcsin0

x = 0 degrees

Hence arcsin0 = 0degrees

For cos x = 0

Take arccos of both sides

arccos(cosx) = arccos 0

x = arcscos0

x = 90 degrees

Hence arccos0 = 90degrees

For tan x = 1

Take arctan of both sides

arctan(tanx) = arctan 1

x = arctan1

x = 45 degrees

Hence arctan1 = 45degrees

1,000 + what gives us 1,200

Answers

Answer:

200 you know this lol

Step-by-step explanation:

Answer:

1,000 + 200 Its Pretty Easy.

Step-by-step explanation:        

                                                  N/A

Which expression is equivalent to
7x+4X^2- 5x?

A 4x^2+ 10x

B 2x + 4x^2

C 2x - 4x^2

D 4X^2 - 2x

Answers

Answer:

B

Step-by-step explanation:

Combine like term.

Hers 7x and (-5x) are like terms

7x + 4x² - 5x = 7x - 5x + 4x²

                    = 2x + 4x²

what is the period? ​

Answers

Answer: 2π/3  

Step-by-step explanation: At 2π, three cycles have been completed. The period is the length of one cycle.

Measure from peak to peak.

Another way to look at it is to measure the first cycle between 0 to π. One cycle has been completed at 2/3 the distance between 0 and π.

Pls help (25 points)

Answers

Answer: 20

Step-by-step explanation:

4 x 2 = 8

4 x 2 = 8

+

---------

16 round to twenty

Please help me this proof question.

Answers

Answer:

Triangles EFB and DFC are congruent (AA)

Step-by-step explanation:

Answer the photo below thanks!
Explain how you got the answer Please

Answers

Answer:

Step-by-step explanation:

Remark

The diameter is 28 cm

Formula

Area = pi * r^2

Givens

pi = 22/7

r = d/2

r = 28/2

r = 14

Area = 22/7 * 14 * 14

Area = 22 * 2 * 14

Area = 44 * 14

Area = 616

I give crown!!!! NO random answers :--)))

Answers

Answer:

105°

Step-by-step explanation:

An angle is created by West First Street and South Main Street. Call this angle <1. m<1 = x, an unknown.

An angle is created by West First Street and North Main Street. Call this angle <2. This angle measures 30° less than <1, so it measures x - 30.

The two angles form a linear pair, so they are supplementary.

The sum of the measures of supplementary angles is 180 deg.

x + x - 30 = 180

2x - 30 = 180

2x = 210

x = 105

m<1 = 105

The angle we are looking for, created by North Main Street and East First Street is vertical to angle 1, so it is congruent to angle 1.

Answer: 105°

Identify the table that would correctly graph the equation: y= 3x​

Answers

Answer:

c

Step-by-step explanation:

What is an equation of the line that passes through the points (3, -5) and (-6, -8)

Answers

Answer:

y = 1/3x − 6

Step-by-step explanation:

Answer:

y = 1/3x − 6

Step-by-step explanation:

:)

–3(2y–9)?
a
n
s
w
e
r

Answers

Answer:

-6y+27

Step-by-step explanation:

-3*2y=-6y

-3*-9=27

because multiplying 2 negatives make a positive.

so,

-3(2y-9) = -6y+27

Y= -15 because -3 times 2 is -6 and then -6 -9 equals -15

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Answers

Answer:

The ninth term? That would be 98.

Step-by-step explanation:

Notice how the numbers add 10 every time. If we keep doing that pattern until we get the ninth number, then we get this:

8, 18, 28, 38, 48, 58, 68, 78, 88, 98

Therefore, the answer is 98.

Multiplying polynomials

Answers

Answer:

multiply each term in one polynomial by each term in the other polynomial. add those answers together, and simplify if needed.

Step-by-step explanation:

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Answer:

no se ingles lo siento y de paso mientale la madre al trup por puto rasista


The measure of Angle 1 is 35º and it is complementary to Angle 2. The
measure of Angle 2 is 5x. What is the value of x?

Answers

Answer:

x = 11

Step-by-step explanation:

35 + 5x = 90    {Complementary angles}

Subtract 35 from both sides

   5x = 90 - 35

  5x = 55            {Divide both sides by 5}

    x = 55/5

    x = 11

Input Output
A. -2
B. 0
C. 2

Answers

B is false amigo de Herman is
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