3 years ago

The roots of a certain quadratic equation is 1 and 2/3. Determine the equation

Mathematics

1 answer:

MrRa [10]3 years ago

4 0

Answer:3x^2-5x+2=0

Step-by-step explanation:

Format of a quadratic equation= ax^2 +bx+c

Let x=1 and 2/3

When x=1

x-1=0.......(1)

When x=2/3

x-2/3=0.........(2)

Compare the equations

(x-1)(x-2/3)=0

x^2-2/3x-x+2/3=0

x^2-5/3x+2/3=0

Multiply all terms by 3

3x^2-5x+2=0

You might be interested in

Hey ! Can anyone help me with this problem please thank you !!

Artist 52 [7]

Answer:

Step-by-step explanation:

7x + 3 = 8x + 1

2 = x

these are geometry problems.

3 0

2 years ago

Choose one fraction that can be placed in both boxes to make the two comparisons true.

Snezhnost [94]

<span>
1
4
<
3
4
>
A
1
8

B
3
12

C
1
2

D
6ddddddddddddddddddddd
8</span>

6 0

3 years ago

The time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minus.

AnnyKZ [126]

Answer:

Step-by-step explanation:

Given that the time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minutes.

P(completing exam before 1 hour)

= P(less than an hour) = P(X<60)

=P(Z< $\frac{60-70}{10} =-1$ )

=0.5-0.34=0.16

i.e. 16% of students completed the standardized exam.

7 0

2 years ago

Figure ABCD is a parallelogram.

STatiana [176]

The answer is 14 units

7 0

2 years ago

Pls explain how you figured out both questions

Mariana [72]

Answer:

A=0.125

B=0.125

Step-by-step explanation

for both you would divide 0.5 by 4. you would cut 0.125 off of each side, but two sides together would 0.25

6 0

2 years ago