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Rus_ich [418]
3 years ago
8

Can someone help me please!!!!!!!!!!!!

Mathematics
2 answers:
monitta3 years ago
7 0

Answer:

a = -1/2

Step-by-step explanation:

-1/4a - 4 = 7/4a - 3

-a/2^2 - 4 = 7/ 2^2 a - 3

(-a) - ( 2^2) 4 / 2^2 = 7a/ 2^2 - 3

a = -1/2

I know this confusing but this how I got the answer.

I hope this helps

Oksanka [162]3 years ago
4 0

a = -1/2

Hope this helps :)

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1. What values of a, b, and c would you use in the quadratic formula for the following equation?
Archy [21]
Question (1):
The general formula of the quadratic equation is:
ax² + bx + c = 0
The given equation is:
5x² + 9x = 4
Rearrange the given equation to look the standard one:
5x² + 9x - 4 = 0
Now, compare the coefficients in the given equation with the standard one, you will find that:
a = 5, b = 9 and c = -4

Question (2):
The given expression is:
 -5 + 2x²<span> = -6x 
</span>Rearrange this expression to be in standard form:
2x² + 6x - 5 = 0
This means that:
a = 2
b = 6
c = -5
The roots of the equation can be found using the formula in the attached image.
Substituting in this formula with the given a, b and c, we would find that the correct choice is third one (I have attached the correct choice)

Question (3):
Quadratic formula (the one used in the previous question, also shown in attached images) is the best method to get the solution of any quadratic equation. This is because, putting the equation in standard form, we can simply get the values of a, b and c, substitute in the formula and get the precise solutions of the equation.

Hope this helps :)

8 0
3 years ago
Read 2 more answers
Can somebody help me please
Veseljchak [2.6K]

Step-by-step explanation:

yes its ans is (3,3) fast you have see in x axis then y axis .so according to this we write 3 which lies in x- axis and then another 3 which lies in y-axis.

3 0
2 years ago
Simplify 2 √3 times 3 √15<br> Also simplify 3 √5 times √5 <br> Please help
stira [4]

answer one would be 18 square root of 5

and the second would be 4 square root of 5

Step-by-step explanation:

6 0
3 years ago
An object is launched straight up into
DiKsa [7]

Answer:

  t ∈ {1, 3}

Step-by-step explanation:

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  1 = t^2 -4t +4 = (t -2)^2 . . . . add 4 to complete the square

  ±√1 = t -2 . . . . . . . . . . . . . . take the square root

  t = 2 ± 1 . . . . . . . . . . . . . . . . add 2

  t = 1 or 3

The object is 27 ft off the ground at t = 1 and again at t = 3.

8 0
3 years ago
What is the value of x that makes sense the given equation true? 4x-3=-12x+13
Eva8 [605]
X=1 is the answer to your question
4 0
3 years ago
Read 2 more answers
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