All categories

3 years ago

TRUE OR FALSE: a rectangular equation that is not a function may be a function in the polar coordinate system.

Mathematics

2 answers:

Sindrei [870]3 years ago

5 0

It is false. The website i am on says that the statement uptop is false

Crank3 years ago

4 0

The statement above is true. Polar equations indeed can describe graphs as functions, even if when the equations in the rectangular coordinate system are not one of the functions. Polar equations can be graphed accurately using hands by using the Polar Coordinate System.

You might be interested in

What value of x will make this expression equal to 28.1? A) x=0 is the only value that will make the expression equal to 28.1 B)

Nikolay [14]

Answer:

Any value except -3.44 will make the equation equal to 28.1

Step-by-step explanation:

We are told to multiply the quotient of the fraction by 28.1 to make 28.1. So, it is obvious that the fraction has to simplified to a one. This is possible with any number as whatever the value of x, the numerator and denominator will be equal. But, in the case of -3.44, it will make 5e fraction 0/0, which is undefined and never equal to 1.

I hope this helps

5 0

3 years ago

A school bought pens, each costing $1, and pencils, each costing $0.5. The cost of the whole purchase was $220. How many pens an

Mkey [24]

Answer:

120 pens and 200 pencils.

Explanation:

You can set a system of two equations.

1. Variables

x: number of pens
y: number of pencils

2. Cost

each pen costs $1, then x pens costs: x
each pencil costs $0.5, then y pencil costs: 0.5y

Then, the total cost is: x + 0.5y

The cost of the whole purchase was $ 220, then the first equation is:

x + 0.5y = 220 ↔ equation (1)

3. There were 80 more pencils than pens

Then:

pencils = 80 + pens

↓ ↓

y = 80 + x ↔ equation (2)

4. Solve the system

i) Substitute the equation (2) into the equation (1):

x + 0.5(80 + x) = 220

ii) Solve

x + 40 + 0.5x = 220

1.5x = 180

x = 180/1.5

x = 120 pens

iii) Substitute x = 120 into the equation (2)

y = 80 + 120

y = 200 pencils

Solution: 120 pens and 200 pencils ← answer

6 0

2 years ago

If 89 X 25 = 2225 work out 89 x 250?

Andreas93 [3]

89 times 250 is just going to be 22,250. It's just adding one more zero!

5 0

3 years ago

Read 2 more answers

Someone help with #1

Drupady [299]

My answer was wrong, please delete this

6 0

3 years ago

Read 2 more answers

Based on the data which company most likely has the longest average commute time per employee?

Natalija [7]

Company 1 average= 24.4 minutes
company 2 average= 19.8 minutes
company 3 average= 15 minutes
company 4 average= 19 minutes

The answer is 24.4 or company one

3 0

3 years ago