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lara [203]
2 years ago
15

For the given equation, find the values of a, b, and c, determine the direction in which

Mathematics
1 answer:
Shkiper50 [21]2 years ago
7 0

Answer: Table D

Step-by-step explanation:

The coefficient of x^2 is -9, the coefficient of x is 7, and the constant is 0, so we know a = -9, b = 7, c = 0.

  • This eliminates tables A, B, and C.

Thus, table D is the answer.

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11+2p= p +4<br> What is the answer for this ? Please help !
skad [1K]

Answer:

<em>p</em><em>=</em><em>-</em><em>7</em>

Step-by-step explanation:

11+2p=p+4

2p-p=-11+4

p=-7

3 0
3 years ago
Which of these formulas models this arithmetic sequence? 4, 15, 26, 37, 48, . . .
Musya8 [376]

it adds 11 to each number, 4+11+=15, 15+11=26, 26+11=26 and it keeps going

7 0
3 years ago
Read 2 more answers
I need help with this question, can someone please help me out?? and if . you understand, please show work, so I could understan
Lana71 [14]

Answer:

4). 47 - 29i

Step-by-step explanation:

(5+√-36)*(1-√-49)=5*1 -5√-49+1*√-36 -√-36√-49 = 5-5*7i +6i-6i*7i=

=5-35i+6i-42(-1)=5+42-41i= 47 - 29i

6 0
3 years ago
Help with matrice equations
Tasya [4]

Answer:

21) x=1, y=-1, z=2 and 23) x=3, y=-1, z=-1

Step-by-step explanation:

there are 3 equations in 21)

1) x+y-z=-2

2)2x-y+z=5

3)-x+2y+2z=1

solve for x by adding equation 2) and 1)

2)2x-y+z=5 +  1) x+y-z=-2   = 3x=3, then divide by 3 and x=1

solve for z by adding equation 1) and 3)

1) x+y-z=-2 + 3)-x+2y+2z=1

we then get a new equation, 4), by isolating z

3y+z=-1 which is 4) z=-1-3y

substitute our new equation, 4) z=-1-3y, and x=1 into equation 1) to get y

(1)+y- (-1-3y)=-2

isolate y to get y=-1

then substitute y=-1 into equation 4) to get z=2

check by substituting x=1, y=-1, and z=2 into all 3 equations

there are 3 equations

1)x+3y=0

2)x+y+z=1

3)3x-y-z=11

add equation 3) and 2) together to get x

3)3x-y-z=11 + 2)x+y+z=1

4x=12, x=3

substitute x=3 into equation 1) (3)+ 3y=0 to get y

3y=-3, y=-1

substitute x=3 and y=-1 into equation 2) to get z

(3)+(-1)+z=1,  z=-1

4 0
3 years ago
Help please! Thanks
SSSSS [86.1K]

Answer:

E. 0

Step-by-step explanation:

There isn't any guarantee that there are <em>any </em>people that have their birthdays in the same month based on what you're given, so your answer would be 0.

8 0
3 years ago
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