3 years ago

PLEASE HELP ASAP. I HAVE A VERY IMPORTANT TEST AND I NEED HELP

Mathematics

1 answer:

Katarina [22]3 years ago

8 0

Answer:

i think 4 is b

Step-by-step explanation:

You might be interested in

3x-y+2=0 in rectangle form

kotegsom [21]

Complete Question:

Convert 3x-y+2=0 in rectangle form to polar form

Answer:

r ( 3cosθ - sinθ) = -2

Step-by-step explanation:

The equation so given is already in rectangular form, the task is to convert it to polar form.

3x - y + 2 = 0

To transform an equation from the rectangular to the polar coordinate:

x = r cosθ

y = r sinθ

Substitute the representations for x and y into the given equation:

3(r cosθ) - (r sinθ) + 2 = 0

3rcosθ - rsinθ = -2

The polar representation of the equation then becomes:

r ( 3cosθ - sinθ) = -2

8 0

3 years ago

How does the concept of inequality help you describe situations?

kati45 [8]

Try using the back of the book.

3 0

3 years ago

Greatest common factor for 27,54,and81

IceJOKER [234]

9
27/9 = 3
54/9 = 6
81/9 = 9

3 0

3 years ago

If you work for an hourly wage, your gross pay is a function of the number of hours that you work. Your hourly wage is $8.50 per

ziro4ka [17]

Your answer would be A because gross pay= 8.50$ times the number of hours you work.

6 0

3 years ago

Use the quadratic formula to solve x2 + 2x - 120 = 0. Think about what other method could also be used to solve this equation. a

pshichka [43]

Answer:

x = 10 , -12

Step-by-step explanation:

Solution:-

- The given quadratic equation is to be solved using the quadratic formula. The general form of a quadratic equation is:

$ax^2 + bx + c =0$

Where, [ a , b and c are constants ]

- The quadratic formula is given as:

$x = \frac{-b+/-\sqrt{b^2 - 4*a*c} }{2a}$

- The given equation is:

$x^2 + 2x - 120 = 0$

Where, a = 1 , b = 2 , c = -120

- Solve using quadratic formula:

$x = \frac{-2+/-\sqrt{2^2 - 4*1*(-120)} }{2*1}\\\\x = \frac{-2+/-\sqrt{4 + 480} }{2}\\\\x = \frac{-2+/-(22) }{2}\\\\\\x = 10 , -12$

7 0

3 years ago