All categories

4 years ago

Convert to polar form y=3x^2

Mathematics

2 answers:

cluponka [151]4 years ago

7 0

r=2sin0-3cos0

explainusing the formula that links Cartesian to Polar coordinates.∙y=rsinθ∙x=rcosθthen : rsinθ=3rcosθ+2and rsinθ−3rcosθ=2hence r(sinθ−3cosθ)=2

⇒r=2sinθ−3cosθ

Levart [38]4 years ago

6 0

r = 2/(sinθ−3cosθ)

Explanation:y = r sin θ
x = r cos θThen: r sin θ=3r cos θ + 2and r sin θ −3r cos θ = 2thus r (sin θ−3 cos θ) =2

⇒r =2/(sin θ−3 cos θ)

You might be interested in

Look at the picture.....

Contact [7]

Answer:

cant

Step-by-step explanation:

7 0

3 years ago

1–5 change the following improper fractions to mixed number.

Alexxx [7]

Q1 is 2 2/3 or 2 2 out of 3 or 2.66666666667
Q5 is 3 1 out of 3 or 3 1/3 or 3.33333333
Q6 is 27/12 or 27 out of 12
Q10 is 109/10 or 109 out of 10

6 0

2 years ago

How to factor ax2 bx c?

Burka [1]

In the same way as you could factor trinomials on the form of

x2+bx+cx2+bx+c

You can factor polynomials on the form of

ax2+bx+cax2+bx+c

If a is positive then you just proceed in the same way as you did previously except now

ax2+bx+c=(x+m)(ax+n)ax2+bx+c=(x+m)(ax+n)

where c=mn,ac=pq and b=p+q=am+n

8 0

3 years ago

Pls help me, I don't know how to do it?:(

FrozenT [24]

Answer and Step-by-step explanation:

Alot of these can be solved with the table up above the problems.

According to the table, every time a value has an exponent of 0, it would equal to 1. Since all A B and C values follow the 0 exponent, their value is 1.

According to the table, when we have a negative exponent, the number gets turned into a fraction of $\frac{1}{x^x}$

Since our value is 9^-2, do as followed :

$\frac{1}{9^2}$

Solve what is 9^2 :

$[\frac{1}{81} ]$

$\frac{1}{x^{-5} }$

This question is different, since we have to go backwards, we have to switch the negative exponent to a positive exponent and rid the fraction.

$x^5$

$5a^3b^{-2}$

Since we have one negative exponent, follow the fraction rule but instead of having one as the numerator, have 5a^3.

$\frac{5a^3}{b^{2}}$

<h2>Fill in the table :</h2><h2 />

$-3^4 = -3*-3*-3*-3=-81$

Since -3 is in parenthesis, we can rid the negative along with the parenthesis :

$(-3)^4=3^4=3*3*3=81$

Follow the negative exponent rule :

$(-3)^{-4}=\frac{1}{(-3)^4} =\frac{1}{3^4} =\frac{1}{3*3*3*3}= \frac{1}{81}$

Follow the negative exponent rule yet again :

$-3^{-4}=-\frac{1}{3^4} =-\frac{1}{3*3*3*3} =-\frac{1}{81}$

6 0

3 years ago

If a school of 400 people remained open, predict how many days it would take for half of the people to become infected. Justify

nignag [31]

Answer:

At Day 27, approximately 50.2% of the population is uninfected and that

means that approximately half of the population has been infected.

8 0

3 years ago