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vesna_86 [32]
3 years ago
6

(15–7xy^2)–(y^3–y^2x–15)

Mathematics
2 answers:
Vitek1552 [10]3 years ago
6 0
My answer is: -6xy2 - y3<span> + 30
Hope this helps bye</span>
blsea [12.9K]3 years ago
5 0
15 - 7xy^2 - (y^3 - y^2x - 15)

Distribute negative sign
15 - 7xy^2 + -1(y^3 - y2x - 15)
15 + -7xy^2 + -1y^3 + -1(-xy^2) + (-1)(-15)
15 + -7xy^2 + -y^3 + x^2 + 15

Combine like terms
15 + - 7xy^2 + -y^3 +xy^2 + 15
( -7xy^2 + xy^2) + (-y^3) + (15 + 15)
-6xy^2 + -y^3+ 30

= -6xy^2 + -y^3+ 30
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Convert ( 4 , 300 ∘ ) to rectangular form.
Rasek [7]

The rectangular representation of the polar point of (4 , 300) is (2,- 2√3)

According to the statement

we have given a coordinates of the rectangle and we have to find the polar coordinates.

So, For this purpose, we know that the

We Use the conversion formulas to convert from polar coordinates to rectangular coordinates which are

x = rcosθ

y = rsinθ

Substitute the given values in it then

x=(4)cos(300)

y=(4)sin(300)

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant.

x=(4)cos(60) -(1)

y= - (4)sin(60) -(2)

And then

x=(4)cos(60)  

x=(4)(1/2)

x = 2 -(3)

and

y= - (4)sin(60)

y= - (4)(√3/2)

y= - 2√3 -(4)

Replace (3) with (1) and (4) with (2)

then it becomes

x = 2 and y= - 2√3

The rectangular representation of the polar point of (4 , 300) is (2,- 2√3)

Learn more about polar coordinates here

brainly.com/question/4522672

#SPJ1

6 0
1 year ago
Which is NOT written in scientific notation?
NeX [460]
B

Hope this helps :)


Can I have Brainliest please
5 0
3 years ago
Please someone I need the right answer will give brainiest if right​
nika2105 [10]

Answer:

C. Because (-3)^2 is NOT equal to -9

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Put 2/3 5/7 16/21 in order from least to greatest
hodyreva [135]

Answer:

5/7, 2/3, and 16/21

Step-by-step explanation:

If you put them all under the same denominator you will get 2/3=14/21, 5/7= 10/21, and 16/21. And if you put them in order it is 10/21, 14/21, and 16/21. Hope this helps, let me know if correct!!

5 0
3 years ago
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there are 48 stickers in 2 sheets of stickers. which of the following expresses the ratio of stickers to sheets?
gregori [183]
2:48 is the answer for the question 
6 0
3 years ago
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