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Naily [24]
3 years ago
9

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Mathematics
1 answer:
Rashid [163]3 years ago
5 0
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Use the discriminant to determine how many and what kind of solutions the quadratic equation 3x^2-4x=-2
8_murik_8 [283]

Answer:

2 imaginary roots

Step-by-step explanation:

4 0
3 years ago
Diagram shows an irregular hexagon PQRSTU.Fine the value of X + Y=
Lynna [10]
To find the value of x+y, we will first find the sum of all the interior angles of the hexagon.The sum of the interior angles in a hexagon is always equal to 720 degrees.

All the angles in the diagram are in terms of x or y except for angle t. However, we know that the corresponding exterior angle is 30 degrees. The sum of angle t and 30 is 360. We can solve this in an algebraic equation.

t+30=360
Subtract 30 from both sides
t = 330

Now, we can solve for the values of x+y. We can set this up in another algebraic equation.

x+x+x+2y+y+30=720

Combine like terms:
3x+3y+30 = 720

Subtract 30 from both sides:
3x+3y = 690

Divide both sides by 3:
\frac{3x + 3y}{3} =  \frac{690}{3}
x+y = 230

The sum of x and y is 230.
6 0
4 years ago
I WANT GTA 5 AND MODS!!!!!!!!!!!!!!!!!!!!!!
Svetradugi [14.3K]

Answer:

B.

Step-by-step explanation:

I think

3 0
3 years ago
Read 2 more answers
Solve:<br> 4x + 3y = 8<br> 2 - 2y = 13
jenyasd209 [6]

Answer:

x = 49/8, y = -11/2

Step-by-step explanation:

look at the attached picture.

3 0
3 years ago
Hello there! How to find the probability? See picture! Thank you and please show your work!
german

Answer:

  0.8914

Step-by-step explanation:

You want to find the z-values associated with the x-values:

 z = (x -μ)/σ

 z1 = (57 -90)/12 = -2.75

 z2 = (105 -90)/12 = 1.25

Look up these values in a probability table and find the difference of the table values.

 p(z < z1) ≈ 0.00298 . . . . from a table or calculator

 p(z < z2) ≈ 0.89435 . . . . from a table or calculator

p(57 < x < 105) ≈ 0.89435 -0.00298 = 0.89137 ≈ 0.8914

8 0
4 years ago
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