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ira [324]
3 years ago
13

What is a unit circle

Mathematics
1 answer:
noname [10]3 years ago
7 0

Answer:

I hope this helps you!!

Step-by-step explanation:

In mathematics, a unit circle is a circle of unit radius—that is, a radius of 1. Frequently, especially in trigonometry, the unit circle is the circle of radius 1 centered at the origin (0, 0) in the Cartesian coordinate system in the Euclidean plane.

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Solve 5x2 = −30x − 65.<br><br> x = −3 ± 2i<br> x = −3 ± 4i<br> x = −6 ± 2i<br> x = −6 ± 4i
Vladimir [108]
The answer is -6 -/+ 4i. Hope this helps.

8 0
3 years ago
You invest an initial $1,000 in an account that has an annual interest rate of 2.5%, compounded annually. How much money will yo
Lyrx [107]
The change is a growth of 2.5% so the factor will be:
1 + 0.025 = 1.025
N = 1000(1.025)⁶
= $1,160
7 0
4 years ago
Read 2 more answers
X+y+z=−4<br> 2x+3y−2z=10<br> −x+2y−3z=−12 <br> solve for x,y,z<br> WILL MARK BRAINLIEST!!!
Norma-Jean [14]

Answer:

x = 13

y = -10

z = -7

Step-by-step explanation:

x+y+z=−4

2x+3y−2z=10

−x+2y−3z=−12

Add the first and the third equations to eliminate x

x+y+z=−4

−x+2y−3z=−12

--------------------

  3y -2z = -16  Equation A

Add the second and twice the third equation to eliminate x

2x+3y−2z=10

−2x+4y−6z=−24

----------------------------

     7y -8z = -14  Equation B

Take Equation A and multiply by -4

-4*(  3y -2z) = (-16)*-4

-12y + 8z = 64

Add this to Equation B

-12y + 8z = 64

 7y -8z = -14

-----------------------

-5y = 50

Divide by -5

-5y/-5 = 50/-5

y = -10

Now using equation A

  3y -2z = -16  

3*-10 -2z = -16

-30 -2z = -16

Add 30 to each side

-2z = -16+30

-2z = 14

Divide by -2

-2z/-2 = 14/-2

z = -7

Now find x using the first equation

x+y+z = -4

x -7-10 = -4

x -17 = -4

Add 17 to each side

x-17+17 = -4+17

x = 13

7 0
4 years ago
Denise received 300 votes in election for student council president she was 60% of the students who voted in the election how ma
nata0808 [166]

Answer: 500 votes

Step-by-step explanation:

This can be shown by this formula.

300 is 60% of x. So if u can find the 100% by taking 300 and multiplying it by 100 which would be the 100% and dividing it by 60 which would be the 60%. The number that you get is how many didn't vote for Denise. Now just add these which would be 300+200 which would give you the answer above.

5 0
4 years ago
Solve −4(x + 10) − 6 = −3(x − 2). (1 point)
AURORKA [14]

Hey there!!

Given equation :

... -4 ( x + 10 ) - 6 = -3 ( x - 2 )

Using the distributive property :

... -4x - 40 - 6 = -3x + 6

Combining like terms :

... -4x - 46 = -3x + 6

Adding 46 on both sides :

... -4x = -3x + 52

Adding 3x on both sides :

... -x = 52

... x = -52

Hope helps!

8 0
3 years ago
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