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3 years ago

Which polar coordinates represent the same point as (4, −π/2)

1 answer:

7 0

You can go full 2π rotate around counterclockwise so the angle wouldn't be negative.

So -π/2 + 2π = -π/2 + 4π/2 = 3π/2

So (4, 3π/2) is the same point as (4, -π/2)

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-5=9+c/4 <br>please help me with this problem

DIA [1.3K]

Subtract 9 from both sides. Then you have -14=c/4. Multiply the number by 4. You now have -56=c. :)

7 0

3 years ago

The answer to this question

kirill115 [55]

Answer:

Step-by-step explanation:

m+m+m+m

There is an implied 1 in front of each term

1m+1m+1m+1m

Factor out the m

(1+1+1+1)m

6 0

4 years ago

What is the difference, in hours and minutes, between these times?

Aleks [24]

Answer:

a) 3 hrs 35 mins

b) 2 hrs 45 mins

c) 4 hrs 30 mins

d) 4 hrs 5 mins

Step-by-step explanation:

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3 years ago

What is the equation of a line perpendicular to y-12=2x-3 that passes through the point (2, 3)?

scoray [572]

Answer:

y = - $\frac{1}{2}$ x + 4

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

y - 12 = 2x - 3 ( add 12 to both sides )

y = 2x + 9 ← in slope- intercept form

with slope m = 2

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{2}$ , thus

y = - $\frac{1}{2}$ x + c ← is the partial equation

To find c substitute (2, 3) into the partial equation

3 = - 1 + c ⇒ c = 3 + 1 = 4

y = - $\frac{1}{2}$ x + 4 ← equation of perpendicular line

6 0

3 years ago

Evaluate N/6 + 2 when n=12

timurjin [86]

Answer:

Step-by-step explanation:

n/6 + 2 If n = 12

12/6 + 2

2 + 2 = 4

5 0

3 years ago