All categories

4 years ago

What is the formula for quadratic equation

Mathematics

1 answer:

allochka39001 [22]4 years ago

3 0

ax^2 + bx + c = 0

Hope this helps!

You might be interested in

Can you give me answer to both questions am confused . Thank you .

Naddik [55]

For the first one, it would be 5/3 and 19/3
the second one would be 40

5 0

4 years ago

If the current in a circuit is 2 +j2 amps and the resistance is 3-j2 ohms, what is the voltage

victus00 [196]

Answer:

The voltage is 10 + 2j volts.

Step-by-step explanation:

Ohm's first law:

By Ohm's first law, the voltage is the multiplication of the current by the resistance, that is:

$V = R*i$

The voltage is measured in Volts, the current in amps and the resistance in ohms.

In this question:

Both the current and the resistance have complex parts. We have to know that:

$j^{2} = -1$

We have that:

$R = 3 - 2j, i = 2 + 2j$

Then

$V = R*i$

$V = (3 - 2j)*(2 + 2j)$

$V = 6 + 6j - 4j - 4j^{2}$

$V = 6 + 2j - 4(-1)$

$V = 10 + 2j$

The voltage is 10 + 2j volts.

4 0

4 years ago

Find area of a parallelogram with a height of 8 inches and a base of 14 inches

12345 [234]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{112 \: {inches} \: ^{2} }}}}}$

Step-by-step explanation:

Given,

Height of a parallelogram ( h ) = 8 inches

Base of a parallelogram ( b ) = 14 inches

Area of a parallelogram ( A ) = ?

Finding the area of a parallelogram

$\boxed{ \sf{area \: of \: parallelogram \: = \: base \: \times \: height}}$

⇒ $\sf{area \: of \: parallelogram \: = \: 14 \: \times 8}$

⇒ $\sf{area \: of \: parallelogram = 112 \: {inches}^{2} }$

Hope I helped!

Best regards! :D

4 0

3 years ago

9 If 10,000 Birr is invested for 6 years at annual simple interest rate of 16%, what will be interest earned and annount of the

svp [43]

9514 1404 393

Answer:

Step-by-step explanation:

The interest is given by ...

I = Prt

I = 10,000×0.16×6 = 9,600 . . . interest earned

The amount of the investment is the total of the principal and the interest earned:

10,000 +9,600 = 19,600 . . . amount of investment after 6 years

7 0

3 years ago

Subtract these polynomials. (3x2 – 2x + 5) – (x2 + 3) =

nika2105 [10]

Answer:

D. 2x^2 - 2x + 2

Step-by-step explanation:

(3x2 – 2x + 5) – (x2 + 3) add or subtract like terms

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

6 0

3 years ago