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Rashid [163]
3 years ago
5

Write the expression (4x-2)•6(2x+7) in the form of a quadratic expression ax^2+bx+c. What are the values of the coefficients of

each term and constant term.
A=
B=
C=
Mathematics
1 answer:
Dafna1 [17]3 years ago
7 0

Answer:

9

Step-by-step explanation:

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NEEDING HELP ASAP PLEASE :( click on photo
LiRa [457]

9514 1404 393

Answer:

  (1, 1)

Step-by-step explanation:

Did you watch the video?

The y-coefficients have opposite signs and one is a multiple of the other. It is convenient to divide the second equation by 2 and add that to the first.

  (5x -2y) +1/2(4x +4y) = (3) +1/2(8)

  7x = 7 . . . . simplify

  x = 1 . . . . .  divide by 7

__

  4(1) +4y = 8 . . . . substitute for x in the second equation

  4y = 4 . . . . . . . .  subtract 4

  y = 1 . . . . . . . . . . divide by 4

The solution is (x, y) = (1, 1).

6 0
3 years ago
What's is the GCF of 18, 42 how your work
beks73 [17]
6 because it is the greatest number that both can be divided by
5 0
3 years ago
Read 2 more answers
The length of a shadow of the building is 36m. The length of the pole, which is perpendicular to the ground, is 1.9m. The length
attashe74 [19]

Answer:

45

Step-by-step explanation:

We are assuming that the pole's shadow and buildings shadow are proportional so our ratio is

x/36=1.9/1.52

cross multiply

1.52x=68.4

simplify

x=45

6 0
3 years ago
Question:
kaheart [24]

Answer:

-29

Step-by-step explanation:

{\sqrt{7 - y }}^{2}  = {6}^{2}

7 - y =  {6}^{2}

y = 7-36

y = -29

6 0
3 years ago
Select whether the equation has a solution or not.<br> √x = 7
Ierofanga [76]

Answer:

x = 49

The equation does have a solution

Step-by-step explanation:

The sqrt of x = 7, does have a solution. Simply remove the radical, and raise each side by the index of the radical.

In more basic terms, what number has the sqrt of 7? 7^2 is equal to 49!

6 0
3 years ago
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