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Wewaii [24]
3 years ago
11

Please help with the attached photo.

Mathematics
1 answer:
mina [271]3 years ago
7 0

The solution to the equation r(1 - 2cosФ) = 1 is given as x² + y² - 4x√(x² + y²)  + 4x² = 1

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

In polar form:

r = √(x² + y²) and cosФ = x / √(x² + y²)

Hence:

r(1 - 2cosФ) = 1

√(x² + y²) [1 - 2(x / √(x² + y²))] = 1

√(x² + y²) - 2x = 1

Take square of both sides:

x² + y² - 4x√(x² + y²)  + 4x² = 1

The solution to the equation r(1 - 2cosФ) = 1 is given as x² + y² - 4x√(x² + y²)  + 4x² = 1

Find out more on equation at: brainly.com/question/2972832

#SPJ1

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6 pounds of shrimp for 18.06 what is the unit price
frosja888 [35]
The answer is $3.01. To get this answer, divide 18.06 by 6. This is the unit price. 18.6/6. I hope this helps and I hope you have a blessed day.
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3 years ago
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Write a system of equations (3 points) for the problem below and then solve it The candy shack has 20 lb. Of mixed white and dar
icang [17]

Answer: the mixture contained 15 pounds of white chocolate and 5 pounds of dark chocolate.

Step-by-step explanation:

Let x represent the number of pounds of white chocolate in the candy shack mixture.

Let y represent the number of pounds of dark chocolate in the candy shack mixture.

The candy shack has 20 lb of mixed white and dark chocolate. This means that

x + y = 20

The 20lb mixture is worth $7.50 per pound. This means that the total cost of the mixture is

20 × 7.50 = $150

White chocolate alone sells for $8.00 per pound and dark chocolate sells for 6.00 per pound. This means that

8x + 6y = 150 - - - - - - - - - - - - - -1

Substituting x = 20 - y into equation 1, it becomes

8(20 - y) + 6y = 150

160 - 8y + 6y = 150

- 8y + 6y = 150 - 160

- 2y = - 10

y = - 10/ - 2

y = 5

x = 20 - y = 20 - 5

x = 15

5 0
4 years ago
Hao bought a 16-pound bag of dog food. If his dog eats pound of food every day, for how many days will the bag of dog food last?
densk [106]

Answer:

uh 1 pound per day 16 pounds so 16 days, i guess

Step-by-step explanation:

3 0
3 years ago
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7 (f- 1 )=45 solve equation
Karo-lina-s [1.5K]

7(f-1)=45

7xf=7f

7x-1=-7

add 7 to 45=52

divide 52 by 7

f=7.43 (rounded)

7 0
3 years ago
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In order to be invited to tutoring or extension activities, a student's performance must be at least 20 points higher or lower t
marissa [1.9K]

Answer:

The inequality that represents p are p \geq 125 or p \leq 85.

Step-by-step explanation:

We are given that in order to be invited to tutoring or extension activities, a student's performance must be at least 20 points higher or lower than an average score. The average score is 105.

Let p = the scores for students who are eligible for tutoring or extension activities.

<u>The first condition</u> states that a student's performance must be at least 20 points higher than an average score, that means;

p \geq (105 + 20)

p \geq 125

Similarly, <u>the second condition</u> states that a student's performance must be at least 20 points lower than an average score, that means;

p \leq (105 - 20)

p \leq 85

So, the inequality that represents p are p \geq 125 or p \leq 85.

4 0
3 years ago
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