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OLEGan [10]
3 years ago
9

For the equation 2x² -11x+9=0 solve for x using AC method , completing the square, and the quadratic formula

Mathematics
1 answer:
Luda [366]3 years ago
5 0

Answer:

x=1, 4.5

Step-by-step explanation:

-(-11)plus/minus square root of (-11)^2-4(2)(9) divided by 2 times 2

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A doghouse is to be built in the shape of a right trapezoid, as shown below. What is the area of the doghouse?
Naya [18.7K]
First we will find the total measure of the second base.

Second base is extended more so that meas it will measure extended part plus the first base.

Second base = 7 + 5 = 12.

Now for the area.

A = 1/2(b1+b2)(h)
A = 1/2(7 + 12)(7)
A = 66.5

The area is 66.5 ft²

Hope this helps :)
4 0
3 years ago
Read 2 more answers
6 5/6 - 3 1/3 Simplified
Furkat [3]
6 - 3 = 3
5/6 - 1/3 = 5/6 - 2/6 = 3/6 = 1/2

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7 0
3 years ago
Marcy purchases a total of 12 adult, child, and senior tickets for an art museum tour. Adult tickets are $5 each, child tickets
Kruka [31]

Answer:

A: The solution to this system is no viable because it results in fractional values of tickets

Step-by-step explanation:

Let number of adult, child, and senior tickets be x, y and z respectively.

Thus;

x + y + z = 12 - - - (eq 1)

she purchases 4 more child tickets than senior tickets.

Thus, y = z + 4

Thus:

x + (z + 4) + z = 12

x + 2z + 4 = 12

x + 2z = 8 - - - (eq 2)

Also, We are told that Adult tickets are $5 each, child tickets are $2 each, and senior tickets are $4 each. She spends a total of $38,

Thus;

5x + 2(z + 4) + 4z = 38

5x + 2z + 8 + 4z = 38

5x + 6z + 8 = 38

5x + 6z = 38 - 8

5x + 6z = 30

Divide through by 5 to get;

x + (6/5)z = 6 - - - (eq 3)

Subtract eq 2 from eq 1 to get;

2z - (6/5)z = 8 - 6

2z - (6/5)z = 2

Multiply through by 5 to get;

10z - 6z = 10

4z = 10

z = 2½

It's not possible to have a fractional value of a ticket and thus we can say that the solution is not viable.

6 0
3 years ago
Is (4, 3) a solution of the graphed inequality?
Maurinko [17]
No it is not. Anything in the shaded area is a solution m. (4,3) is not in the shaded area so it is not a solution for the graphed inequality.
7 0
3 years ago
Which statement describing this experiment is true?
Andru [333]

Answer:c

Step-by-step explanation:

4 0
3 years ago
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