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4 years ago

Give an example of a quadratic with complex roots. Explain how you know it has complex roots.

1 answer:

5 0

2x^2 + x + 3=0 has only complex roots.

The determinant is 1-4*2*3 = -23

-23 (or any determinant) is the part under the square root sign, If that determinant is negative, knowing you cannot take the square root of a negative number, we know the answers must be complex.

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A recipe called for 5/9 cup of chopped lettuce and 5/6 cup of diced lettuce. In total, how many cups of lettuce did the recipe c

77julia77 [94]

Answer:

1 7/18

Step-by-step explanation:

5/9 + 5/6 write all numerators above the least common denominator which is 18.

10+15/18 then you add the numerators which will make it 25/18 which alternative form will be 1 7/18, or in decimal 1.38

3 0

3 years ago

Tim is reading a book. On Monday he reads 2 pages. On each day after that, he reads triple the number of pages as the previous d

poizon [28]

Answer:

Step-by-step explanation:

Mon - 2 pages read

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8 0

3 years ago

igomit [66]

Answer:

x = 1/10

Step-by-step explanation:

2/x -2 = 3/2x +3

Add 2 to each side

2/x -2+2 = 3/2x +3+2

2/x = 3 /2x +5

Subtract 3/2x from each side

2/x -3/2x = 3 /2x - 3/2x +5

2/x - 3/2x = 5

Get a common denominator

2/x *2/2 -3/2x =5

4/2x - 3/2x = 5

1/2x =5

Multiply each side by 2x

1 /2x * 2x = 5 *2x

1 = 10x

Divide each side by 10

1/10 = 10x/10

1/10 =x

4 0

3 years ago

Choose all that correctly identify the area of the triangle given the coordinates of its vertices. A(1, 2), B(4, 5), C(4, 0) are

Masja [62]

Answer:

A(1, 1), B(5, 2), C(3, 5)

area = 7 units^2

A(−3, −1), B(−5, −4), C(−2, −5)

area = 5.5 units^2

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3 years ago

Can anyone help me with this please

Elenna [48]

I think that you multiply 2 with 4 to get 8 and then multiply 8 with 7 to get that number then add 2.75... to get the total.

Hope it helped..

3 0

3 years ago

Read 2 more answers