I need help please thank you

Answer:

if you rearrange to complete the square, you get (x^2-4)^2 +4

and seeing as anything squared will always be positive or zero, the lowest possible value for (x^2-4)^2 is 0, when x = 4

and 0 + 4 = 4, which is greater than 0, so positive

Step-by-step explanation:

We have x^2-8x+20 is always positive.

An equation is a  mathematical statement that is made up of two expressions connected by an equal sign.  In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

here, we have,

x^2-8x+20

=x^2-2.x.4+16+4

if you rearrange to complete the square,

you get (x^2-4)^2 +4

and seeing as anything squared will always be positive or zero,

the lowest possible value for (x^2-4)^2 is 0, when x = 4

and 0 + 4 = 4, which is greater than 0,

so, positive.

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Answer:

1. previous clocks only showed the hours and minutes.

2. Maria asked, "wasn't he an inventor, too?"

3. Dr. B. Rimmins

4. 1157 Wakeshire Terrace

5. Fox Ridge, Indiana

6. Is Mt. Everest in nepal?

7. Jana's birthday is on the Fourth of July.

8.The girl scouts have an annual food collection in our town.

9. "Yesterday in Oxford Street"

10. My favorite movie is "The Parent Trap."

Step-by-step explanation:

1. Does not have proper capitalization.

Answer:

no

similar triangles have to be the same shape

Step-by-step explanation:

Answer:

1 mile- 2/10 hr

Step-by-step explanation:

2 miles- 2/5 hr

1 mile- 2/10 hr

(divide by 2)

hope this helped :)

Answer:

x=0,x=1/4

Step-by-step explanation:

2x=8(x^2)

Subtract 8(x^2) from both sides

2x-8x^2=8x^2-8x^2

Simplify

2x-8x^2=0

Factor 2x-8x^2;

2x-8x^2

=-8xx+2x

Rewrite 8 as 2*4

=-2*4xx+2x

Factor out common term -2x

=-2x(4x-1)

-2x(4x-1)=0

x=0 or 4x-1=0

Solve 4x-1=0;x=1/4

4x-1=0

Add 1 to both sides

4x-1+1=0+1

Simplify

4x=1

Divide both sides by 4

4x/4=1/4

Simplify

x=1/4

The solutions to the quadratic equation are;

x=0,x=1/4

Hope this helped!!!!

Answer:

positivo

Step-by-step explanation:

dos números multiplicados negativos siempre se vuelven positivos.

espero que esto ayude :)

Answer:

A 21/4

Step-by-step explanation:

When forming a perfect square trinomial you need to "complete the square".

All of the steps to completing the square when solving an equation:

1.  The leading coefficient must be 1.  

2.  Divide b by 2.

3.  Square (b/2)

4.  Add (b/2)^2 to both sides to keep the polynomial balanced.

5.  You can now write the perfect square trinomial and solve.

x^2 - 3x  

-3/2

(-3/2)^2 = 9/4 = 2 1/4

Answer:

i don't see in product in here that is irrational

Step-by-step explanation:

Answer:

2xm+3=34

Step-by-step explanation:

ueuieiejdnnfmdjxjufirir

Answer:

C. 150 miles.

Step-by-step explanation:

By multiplying the scale by 3 to get the value for 6 inches, you can find that 6 inches on the map is equal to 150 miles.

Answer:

A

Step-by-step explanation:

Answer:

3.84 in³

Step-by-step explanation:

V=l*w*h

[tex]5.97*1.34*.48\\=3.839904[/tex]

≈3.84

Answer:3.84 in³

Step-by-step explanation:

G I DID THIS ON KHAN!!!

Answer:

Step-by-step explanation:

Given

1 package = $3.50¢

∴, ? package = 42.00¢

Equation

Identify the variable. Let n be the variables, then, the equation is: n=$42.00¢

Solve

Since 1 is 3.50

To find 42.00

Divide 42.00 by 3.50

42.00 ÷ 3.50 = 12

Therefore, Gail can buy 12 packages with $42.00¢

Answer:

12

Step-by-step explanation:

hello :

√24 ×√6 = √(24×6) =√144 = √12² = 12

Answer:

root 144 or 12

Step-by-step explanation:

24 by 6 is 144 so root 144 becomes 12

Answer:

2r

Step-by-step explanation:

You suppose that the radius of a larger circle = r

so diameter = r*2 = 2r

aint really sure tho

Answer:

2R

Step-by-step explanation:

The formula to find the diameter states the relationship between the diameter and the radius. The diameter is made up of two segments that are each a radius. Therefore, the formula is: Diameter = 2 * the measurement of the radius. You can abbreviate this formula as d=2r.

Answer: D

Step-by-step explanation:

5x + 4x = 180°

Angles on a straight line add to 180°

Answer:

(2,2)

Step-by-step explanation:

Answer: the answer is 6

Step-by-step explanation: You can use polynomial long division or synthetic division.

Answer:

16

Step-by-step explanation:

To solve we must first find what the given ratios equal

8/5 = 1.6

40/25 = 1.6

48/30 = 1.6

this means that x/10 = 1.6

To find x... multiply both sides of this equation my 10 to get x alone

x=1.6×10

x=16

Answer:

16

Step-by-step explanation:

I Hope this helps!

Answer:

Step-by-step explanation:

Answer:

a=6

Step-by-step explanation:

edge21

1. Even

2. Odd

3. Even

4. Odd

5. Odd

6. Even

7. Odd

8. Odd

9. Even

10. Even

Answer:

16

Step-by-step explanation:

Base: 2x2=4

The 4 Triangles: 2x3x1/2 (for each triangle), each triangle equals 3

3x4=12

12+4=16

16 is the final answer