1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yKpoI14uk [10]
3 years ago
5

Find the rectangular coordinates of the point ( -3, 1/2 π)

Mathematics
1 answer:
alexdok [17]3 years ago
4 0

Answer:

x = -3 cos (\frac{\pi}{2})= 0

y = -3 sin (\frac{\pi}{2})= -3

And then the rectangular coordinates for this case are :

(x = 0 , y = -3)

Step-by-step explanation:

We have the following point given P = (-3, \frac{\pi}{2}) and we want to conver from polar to rectangular coordinates and we need to use the following formulas:

x = r cos \theta

y = r sin \theta

For this case we have that:

r = -3

And:

\theta = \frac{\pi}{2}

Replacing we got:

x = -3 cos (\frac{\pi}{2})= 0

y = -3 sin (\frac{\pi}{2})= -3

And then the rectangular coordinates for this case are :

(x = 0 , y = -3)

You might be interested in
A scientist cools some water at a constant rate. The graph and table show
Afina-wow [57]

A function assigns the values. The function for this model can be written as y=-4x+50.

<h3>What is a Function?</h3>

A function assigns the value of each element of one set to the other specific element of another set.

As it can be seen from the graph that the function is linear, therefore, we can write,

y = mx + c

Given two points of the graph, therefore, we can write for the first point,

30 = m(5) + c

30 = 5m + c

c = 30 - 5m

Also, for the second point,

y = mx + c

26 = 6m + c

Substitute the value of c,

26 - 6m = 30 - 5m

-6m + 5m = 30 - 26

-m = 4

m = -4

Now, substitute the value of m in any one of the equation formed above,

c = 30 - 5m

c = 30 - 5(-4)

c = 50

Hence, the function for this model can be written as y=-4x+50.

Learn more about Function:

brainly.com/question/5245372

#SPJ1

7 0
2 years ago
Simplify the expression 63 + 5(4 − 2). Select one: a. 28 b. 36 c. 226 d. 234
deff fn [24]
<span>6^3 + 5(4 − 2)
= </span><span>216 + 5(2)
</span><span>= 216 + 10
= 226

based on multiple choice options, 63 =  6^3

so answer is </span><span>c. 226</span>
3 0
3 years ago
Read 2 more answers
Use the order of operations to evaluate this expression: 7 + (5 – 9)2 + 3(16 ÷ 8).
Jet001 [13]

Remember to use PEMDAS when solving.

=  7 + (5 – 9)2 + 3(16 ÷ 8)

= 7 + (-4)2 + 3(2)

= 7 + (-8) + 6

= -1 + 6

= 5

Best of Luck!

3 0
3 years ago
Two teams are selling candy bars to raise money. Team A has $165 saved and they are selling each candy bar for $2. Team B has $7
devlian [24]

Answer: Each have to sell 91 candy bars to have the same amount of money.

Step-by-step explanation: Suppose x represents the amount of candy bars.

Team A already have $165 and they are selling each candy bar for $2. The mathematical equation that represents the amount of money they have is

A: 165 + 2x

Team B initially has $74 and will sell each candy bar for $3. Then, the mathematical equation representing their amount of money is

B: 74 + 3x

So, to have the same amount of money:

165 + 2x = 74 + 3x

x = 165 - 74

x = 91

<u>Teams A and B will have the same amount of money when each of them </u><u>sell 91 candy bars</u>.

6 0
2 years ago
A. [-1, 1]<br> b. [0, pi] <br> c. [-pi/2, pi/2]<br> d. -♾, ♾]
meriva

f(x) = sin(x)

Domain (–∞, ∞)

Range [–1, 1]

y = arcsine(x)

y = f–¹(x)

Domain [–1, 1]

Range [–π/2, π/2]

6 0
3 years ago
Other questions:
  • Wade wants to buy sweaters . He has $ 175 and each sweater costs $ 12.00 . Write and solve an inequality to find how many sweate
    8·1 answer
  • the perimeter of a childs rectangular sandbox is 18 feet if the length of the sandbox is one foot longer than the width write an
    6·1 answer
  • A rectangular football field measures 50 meters by 25 meters. The football team has to run around the field 4 times during warm
    7·2 answers
  • The Americans with Disabilities Act (ADA) requires a straight ramp have a slope no greater than 1/12.
    6·1 answer
  • I got the answer but i need to know how did she get that answer
    10·1 answer
  • Help pls don’t understand this one
    6·1 answer
  • Find two numbers that round to 264.5 when rounded to the nearest tenth
    7·1 answer
  • a family has a monthly budget of $2,400 how much money is spent on each category? 44% is spent on housing
    13·1 answer
  • Use the virtical line test to determine which group does not represent a function
    13·1 answer
  • Help me for brainlist. please I really need it.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!