Factor by grouping: x^3+2x^2−4x−8. Which of the following is one of the factors?
A. (x2−4x)
B. (x−2)
C. (x2−2)
D. (x2−4)

Answer:

C

Step-by-step explanation:

Answer:

C. x^21*y^-21

Step-by-step explanation:

When it's set up like this, you have to multiply the exponents. -3*-7=21, and 3*-7=-21. Thus, the only option for this equation is going to be C.

Hope that this helps, have a good day/night and good luck!

Answer:

Number 4

Step-by-step explanation:

I have done this quiz before, and that is what it looks like

I don't know if I am right, but good luck!

Answer:

-4.5

Step-by-step explanation:

Answer:

[tex] a=1.58, \: \: a =-7.58[/tex]

Step-by-step explanation:

Since, circle of center (-3 , -2) is passing through the points (0 , -6) and (a , 0).

Therefore, points (0 , -6) and (a , 0) will be equidistant from the center of the circle (-3 , -2).

Hence,

Distance between (0 , -6) and (-3 , -2) = Distance between (a , 0) and (-3 , -2).

[tex] [0-(-3)]^2 + [-6-(-2)]^2=[a-(-3)]^2 + [0-(-2)]^2[/tex]

[tex] [0+3]^2 + [-6+2]^2=[a+3]^2 + [0+2]^2[/tex]

[tex] [3]^2 + [-4]^2=[a+3]^2 + [2]^2[/tex]

[tex] 9 + 16=[a+3]^2 + 4[/tex]

[tex] 25=[a+3]^2 + 4[/tex]

[tex] 25-4=[a+3]^2[/tex]

[tex] 21=[a+3]^2[/tex]

[tex] [a+3]^2=21[/tex]

[tex] [a+3]=\pm\sqrt {21} [/tex]

[tex] a=\pm\sqrt {21} - 3[/tex]

[tex] a=\sqrt {21} - 3, \: \: a =-\sqrt {21} - 3[/tex]

[tex] a=1.58257569, \: \: a =-7.58257569[/tex]

[tex] a=1.58, \: \: a =-7.58[/tex]

Answer:

187

Step-by-step explanation:

1655+1775+684=4114

4114/22=187

Answer:

You do length times width times hight

Step-by-step explanation:

So mutliply 6 times 20 times 4 to get your answer

Answer:

480

Step-by-step explanation:

Because the formula is b*h*w

so, 6×4×20=480

Answer:

B

Step-by-step explanation:

Answer:

She can buy 8 bags of soil

Step-by-step explanation:

2.7s + 14.9 < 39.2

Subtract 14.9 from both sides

2.7s  < 39.2 - 14.9

2.7s < 24.3

Divide both sides by 2.7

s < 24.3 /2.7

s < 8.89

Answer:

24

Step-by-step explanation:

Answer:

7/8 to the 7th power

Step-by-step explanation:

Answer:

The first question is the 64 trucks and 80 cars. The second is the ratio 3:5

Step-by-step explanation:

Answer:

23.3023603955 + √2 × i

Step-by-step explanation:

√543 = 23 [tex]\frac{604720790}{2000000000}[/tex]

23.3023603955 + √- 2

23.3023603955 + √2 × i

If the height was 12 the answer would be 10,944 but if the height was 18 the answer would be 16,416. Hope this helps.

Answer for 1:

$52.50

Step-by-step explanation:

75 - 75(0.3)

75 - 22.5 = 52.50

Answer for 2:

50

Step-by-step explanation:

625(0.08) = 50

Answer for 3:

$63.64

Step-by-step explanation:

34.4 + 34.4(0.85)

34.4 + 29.24 = 63.64

Answer:

1. She payed $52.50 (sorry I only know question 1)

Step-by-step explanation:

1. how I solved it: the equation is 30 percent of 75 = 22.5 and $75.00 - $22.50  = $52.50 therefore she pays $52.50

Answer:

It passes through the point (3,4). Given that the center of the circle is the point (0,0). We know that the equation of the circle is given by : (x-a)^2 + (y-b)^2 = r^2 where (a,b) is the center and r is the radius.

Answer:

(-4.5,0)

Step-by-step explanation:

Answer:

Diameter: 14

Radius: 7

Step-by-step explanation:

To find the diameter, you do 43.96 divided by 3.14 and that equals 14

To find the radius, you just divide 14 by 2 and that equals 7.

Answer:

you find a slope by looking at which way the line is going

Step-by-step explanation:

You have to look from left to right to find a slope. if the slope is going downwards, it is negative. if it is going up, its positive. ( I don't know the answer to number 2 sorry)

Answer:

Basically for this problem, we want to order these five numbers from greatest to least.

So, we should have: 12.8, 12.08, 11.301, 11.283, 11.09.

This would make C the correct answer.

Let me know if this helps!

Answer:

16

Step-by-step explanation:

hope this helped!

Answer:

-5

Step-by-step explanation:

3x -3 = -9 + 4 = -5

Answer:

-5

Step-by-step explanation:

-3 times 3 = -9 then add 4 and u get -5

The Surface area of hexagonal pyramid= 358.32 cm square

Formula of surface area of hexagonal pyramid= 3ab+3bs
where a = apothem of pyramid
            b= base
            s= slant height
here a= 6.93cm
         b= 8cm
         s= 8cm*
* a^2 + b/2 ^2 = s^2
  6.93^2 + 4^2 = 8
Area = 3*6.93*8+ 3*8*8= 358.32

Read more about surface area:
https://brainly.com/question/2491679https://brainly.com/question/2491679

The surface area of the hexagonal pyramid is,

⇒ Surface Area of Hexagonal Pyramid = 478.32 square units

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

In the diagram of the base of the hexagonal pyramid, all the triangles are the same.

Here, The slant height of the pyramid (s) = 13 cm

And, Base (b) = 8 cm

And, Apothem (a) = 6.93 cm

Now, We know that;

The surface area of the hexagonal pyramid is,

⇒ Surface Area of Hexagonal Pyramid = (3ab + 3bs) square units

After putting the values we get;

⇒ Surface Area of Hexagonal Pyramid = (3 × 6.93 × 8 + 3 × 8 × 13) square units

⇒ Surface Area of Hexagonal Pyramid = 478.32 square units

Thus, The surface area of the hexagonal pyramid is,

⇒ Surface Area of Hexagonal Pyramid = 478.32 square units

Learn more about the mathematical expression visit:

brainly.com/question/1859113

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Answer: 91.6666666667 pero lo redondeadas y te da de resultado 92.0% de probabilidades que no caiga un 4

Step-by-step explanation:divide 100 entre 12 y el resultado lo multiplicas por 11. no es como se saca la respuesta normalmente pero es una opción

Answer:

0.11

Step-by-step explanation:

your answer would be 0.11 I think.