Solve by completing the square with working out please

6x-x^2-7

Answer:

D

Step-by-step explanation:

this figure equals to 180

so you put add 88 + b+ b=

since 2b is the closest to b+b

Answer:

D I did the quiz i had to figure it out

Step-by-step explanation:

Answer:

I think its option 1

Step-by-step explanation:

Using Pythagoras theorem,

H^2 = P^2 + B^2

h = 200

p = 2x

b = 6x

Solving,

(200)^2 = (2x)^2 + (6x)^2

40000 = 4x^2 + 36x^2

40000 = 40x^2

40000/40 = x^2

1000 = x^2

[tex]\sqrt{1000}[/tex] = x

x = 31.62 ft

Answer:

5 • (2x + 1) • (x + 1)

Step-by-step explanation:

Step  1  :

Equation at the end of step  1  :

 ((2•5x2) +  15x) +  5

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

  10x2 + 15x + 5  =   5 • (2x2 + 3x + 1)  

Trying to factor by splitting the middle term

3.2     Factoring  2x2 + 3x + 1  

The first term is,  2x2  its coefficient is  2 .

The middle term is,  +3x  its coefficient is  3 .

The last term, "the constant", is  +1  

Step-1 : Multiply the coefficient of the first term by the constant   2 • 1 = 2  

Step-2 : Find two factors of  2  whose sum equals the coefficient of the middle term, which is   3 .

     -2    +    -1    =    -3  

     -1    +    -2    =    -3  

     1    +    2    =    3    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  1  and  2  

                    2x2 + 1x + 2x + 1

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x • (2x+1)

             Add up the last 2 terms, pulling out common factors :

                    1 • (2x+1)

Step-5 : Add up the four terms of step 4 :

                   (x+1)  •  (2x+1)

            Which is the desired factorization

So the answer is:

 5 • (2x + 1) • (x + 1)

Answer:

2 (that is the answer, hope i helped)                                                                                                  

Answer:

78,624,000 license plates

Step-by-step explanation:

For each of the 4 numbers, we have the following possibilities:

First number: 10 digits possible

Second number: 9 digits possible (one used)

Third number: 8 digits possible (two used)

Fourth number: 7 digits possible (three used)

For each of the 3 letters, we have the following possibilities:

First letter: 26 digits possible

Second letter: 25 digits possible (one used)

Third letter: 24 digits possible (two used)

The total number of license plates is the product of all these possibilities:

Number of plates = 10 * 9 * 8 * 7 * 26 * 25 * 24 = 78,624,000 license plates

The license plates can be formed if neither the digits nor the letters are repeated is 78,624,000.

A permutation is an act of arranging the objects or elements in order. Combinations are the way of selecting objects or elements from a group of objects or collections, in such a way the order of the objects does not matter.

In a certain country, the car license plate is formed by 4 numbers from the digits 1-9 followed by 3 letters from the alphabet.

There are 10 numbers.

And there is 26 alphabet.

The license plates can be formed if neither the digits nor the letters are repeated will be

[tex](number)(alphabet)\\\\(9*8*7*6)(26*25*24) \\\\78,624,000[/tex]

The license plates can be formed if neither the digits nor the letters are repeated is 78,624,000.

More about the permutation and the combination link is given below.

https://brainly.com/question/11732255

Look at the attached picture

Hope it will help you

Answer:

this answer is attached to the picture

Answer:

the answer for be D. the exponential function grows faster than the quadratic function over two intervals; 2<x<4

Answer:

You answer is D on edge 2020-2021

Step-by-step explanation:

Answer:

I am pretty sure the answer is A.

Answer:

7,893,600

Step-by-step explanation:

Permutations

n = possible things used (26 letters)

r = how many at a time (5 at a time - this is without repeating)

nPr = n! / (n - r)!

26P5 = 26! / (26 - 5)!

26! = 26 x 25 x 24 x 23 x 22... = 403291461126605635584000000

(26 - 5)! = 21! = 51090942171709440000

An easy hack for solving division of large factorials is to use canceling.

26!/21! = 26 x 25 x 24 x 23 x 22 (because 21 down to 1 is cancelled by 21!)

= 7,893,600

ax^2 + bx + c

x^2 + 12x + 3 = 7

x^2 + 12x = 4

Take b, half it, then square it--

x^2 + 12x + 36 = 40

That equation becomes

(x+6)^2 = 40

+ 6 = ± (square root of 40)

= 0.324555

= −12.3246

Answer:

1/6?

Step-by-step explanation:

Answer:

true

Step-by-step explanation:   The two main variables in an experiment are the independent and dependent variable. An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.

Hopfully it helps :)

Answer:

False

Explanation:

The independent variable is often denoted by x. The definition provided would be true for the dependent variable (y).

Answer:

[tex]\theta=\dfrac{7}{4}\ \text{radian}[/tex]

Step-by-step explanation:

We have,

Radius of the circle is 12 cm

Arc length, l = 21 cm

It is required to find the central angle of the circle. The formula for the length of an arc of a circle is :

[tex]l=r\times \theta[/tex]

[tex]\theta[/tex] is central angle

[tex]\theta=\dfrac{l}{r}\\\\\theta=\dfrac{21}{12}\\\\\theta=\dfrac{7}{4}\ \text{radian}[/tex]

So, the angle at the centre of the circle is [tex]\dfrac{7}{4}\ \text{radian}[/tex].

Answer: I think its 24.5 dollars left

Answer:

the image provided is the answer.

Answer:

x = 8

Step-by-step explanation:

[tex] = > 17x - 4 = 15x + 12 \\ \\ = > 17x - 15x = 12 + 4 \\ \\ = > 2x = 16 \\ \\ = > x = \frac{16}{2} \\ \\ = > x = 8[/tex]

Answer:

[tex]x = 8[/tex]

Step-by-step explanation:

[tex]17x - 4 = 12 + 15x \\ 17x - 15x = 4 + 12 \\ 2x = 16 \\ \frac{2x}{2} = \frac{16}{2} \\ x = 8[/tex]

Answer:

(1, 2) (0, 1) (-1, -2)

Step-by-step explanation:

(1, 2) 2 = 5 - 7 = - 2

(0, 1) 1 = 0 - 7 = - 7

(-1, -2) - 2 = - 5 - 7 = - 12

Answer:

A

-Brain Indigo

Answer:

Minimum value = −13/4

Step-by-step explanation:

Answer:

-37/4

Step-by-step explanation:

The minimum value of the parabola y =x² + 5x – 3 is  f(-b/2a)

in this case a = 1 and b = 5 and c = -3

then

-b/2a = -5/2(1) = -5/2

then

f(-b/2a) =  f(-5/2) = -37/4

Answer:

b 72

Step-by-step explanation:

you multiply 6 times 4 times 3

hope this right

if it is wrong correct me

Answer:

x = -3 +/- sqrt(17)

Step-by-step explanation:

-6x - (x^2) - 8 = 0

-((x^2) + 6x + 8) = 0

(x^2) + 6x + 8 = 0

(x + 3)^2 - 1 = 0

(x + 3)^2 = 1

x + 3 = +/- sqrt(1)

x + 3 = +/- 1

x = -3 +/- 1

x = -4, -2

Answer:

Step-by-step explanation:

Answer: A. The area of ABC > the areas of XYZ

Step-by-step explanation:

Look up

Answer:

What Ratio is greater than 8/6. The correct answer would be 9/6

Step-by-step explanation:

Which ratio of (tablespoons of raspberries) to (tablespoons of sugar)would make fruit jam

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Because the beaded wristbands cost more than the regulars, the 5 and 8 must refer to how much each type of wristband costs. And because y has the greater coefficient of 8, y must represent the number of beaded wristbands sold, or C. Hope this helps!

Answer:

C

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

13x + 5x = 180

18x = 180

x = 10

Answer:

x = 11

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ FEB and ∠ DEB are adjacent angles and supplementary, thus

∠ FEB = 180 - 4x , so

180 - 4x + x = 147, that is

180 - 3x = 147 ( subtract 180 from both sides )

- 3x = - 33 ( divide both sides by - 3 )

x = 11

Answer:

x = 4

Step-by-step explanation:

-3x + 4 = -8

-3x = -8 - 4

-3x = -12

x = -12/-3

x = 4

Answer: x = 4

Step-by-step explanation: Move all terms that don't contain x to the right side and solve.

-3x +4 = -8

     -4     -4

Subtract four from the four to cancel out and the -8.

That makes the equation -3x = -12

Then, divide by -3 by -3, then -12 divide by -3, to equal 4

Hope this helps and please mark me brainliest :)

Answer:

$24.50

Step-by-step explanation:

9.10/2=4.55

4.55+19.95=24.50

Answer:

24.5

Step-by-step explanation:

divide 9.10 to get half/2 numbers which is 4.55 then add 4.55 to 19.95 which is 24.5. which means each shirt was $24.5

Answer:

$150-$129-($129*7%)=$11.97

$531.25

$9414.5

Step-by-step explanation:

The amount that Anike would have left is the budgeted amount minus the regular price as well as the applicable sales tax.

Amount left=$150-$129-($129*7%)=$11.97

The amount that Harper would have to pay is the purchase price of $500 plus the 6.25% of sales price as sales tax i.e $500+$500*6.25%=$531.25

The yearly tax fees is the appraised value multiplied by property tax rate i.e $250,000*3.7658%=$9414.5

The property tax rate is 3.7658% not 37.658%

Answer:

mai =$24, deshaun=$18, tony =$54

Step-by-step explanation:

hope this helps :)