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Maurinko [17]
3 years ago
10

Some one please help me on my exam

Mathematics
2 answers:
Elena L [17]3 years ago
5 0

Answer:

Where is the data ?

Step-by-step explanation:

Mazyrski [523]3 years ago
5 0

Answer:

Normal

Step-by-step explanation:

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Given that (ax^2 + bx + 3) (x+d) = x^3 + 6x^2 + 11x + 12, it asks a + 2b - d = ?
astraxan [27]

Answer:

a+2b-d=1, 3, 5, 7

Step-by-step explanation:

(ax^2+bx+3)(x+d)

ax^3+bx^2+3x+adx^2+bdx+3d

ax^3+bx^2+adx^2+3x+bdx+3d=x^3+6x^2+11x+12

ax^3=x^3, a=1

bx^2+adx^2=6x^2

x^2(b+ad)=6x^2

b+ad=6

b+(1)d=6

b+d=6

------------

3x+bdx=11x

x(3+bd)=11x

3+bd=11

-----------------

b=6-d

3+(6-d)d=11

3+6d-d^2=11

3-11+6d-d^2=0

-8+6d-d^2=0

d^2-6d+8=0

factor out,

(d-4)(d-2)=0

zero property,

d-4=0, d-2=0

d=0+4=4,

d=0+2=2

b=6-4=2,

b=6-2=4.

------------------

a+2b-d=1+2(2)-2=1+4-2=5-2=3

-------------------

a+2(4)-4=1+8-4=9-4=5

-----------------------

a+2(2)-4=1+4-4=5-4=1

-----------------------

a+2(4)-2=1+8-2=9-2=7

5 0
3 years ago
Read 2 more answers
Consider the equations and graph below.
Len [333]

Answer:help pls

Step-by-step explanation:

                                                           

8 0
2 years ago
Read 2 more answers
Which of the following figures could have both line symmetry and rotational symmetry?
Viefleur [7K]

Answer:

trapezoid is the right answer

3 0
3 years ago
7r+3r-8=8+2r. Solve?
Mazyrski [523]

Given: 7r+3r-8=8+2r

Simplify: 10r-8=8+2r

Addition: add 8 to each side: 10r=16+2r

Subtraction: Take 2r from each side: 8r=16

Division: Divide each side by 8 for answer: r=2

Answer: r=2



4 0
3 years ago
Read 2 more answers
Given the replacement set {2, 3, 4, 5}, solve 4x – 3 = 2x + 5.<br> GIVING 20 POINTS !!
Advocard [28]

Answer:

x=4

Step-by-step explanation:

4x - 3 = 2x + 5

4x - 2x = 5 + 3

2x = 8

x = 8/2

x = 4

7 0
2 years ago
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