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SashulF [63]
3 years ago
13

The polar form of (-1,√3) is(___,___)

Mathematics
1 answer:
Klio2033 [76]3 years ago
4 0

Answer:

(2, 2/3 * pi)

Step-by-step explanation:

( -1, sqrt(3))

to find the radius

sqrt(x^2 + y^2) = r

sqrt( (-1)^2 + (sqrt3)^2) = r

sqrt(1+3) =r

sqrt(4) =r

2=r


to find theta

theta = arctan (sqrt(3)/-1)

theta = -60 degrees

you need theta between 90 and 180

add 180 to theta

theta = 120


you need theta in radians

120 * pi/180 = 2/3 * pi


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Sum one please help need answerssssss pleaseeeeee
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Answer:

yw

Step-by-step explanation:

look it up

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2 years ago
Solve this application problem using a system of equations: Dan and June mix two kinds of feed for pedigreed dogs. They wish to
wlad13 [49]

Answer:

50 pounds

Step-by-step explanation:

Dan and june mix two kind of feed for pedigreed dogs

Feed A worth is $0.26 per pound

Feed B worth is $0.40 per pound

Let x represent the cheaper amount of feed and y the costlier type of feed

x+y= 70..........equation 1

0.26x + 0.40y= 0.30×70

0.26x + 0.40y= 21.........equation 2

From equation 1

x + y= 70

x= 70-y

Substitutes 70-y for x in equation 2

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18.2+0.14y= 21

0.14y= 21-18.2

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Divide both sides by the coefficient of y which is 0.14

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y= 20

Substitute 20 for y in equation 1

x + y= 70

x + 20= 70

x= 70-20

x = 50

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4 0
3 years ago
PLS HELP WILL MARK BRAINLIEST!
elena-s [515]

More than means addition.

C is the correct option.

= (2x + 4) + 9 - 4y + 3x

= 2x + 4 + 9 - 4y + 3x

= 5x + 13 - 4y

= 5x - 4y + 13

7 0
2 years ago
Read 2 more answers
I REALLY need help with this! Could someone please help me?
denis23 [38]

Answer:

It's the first option

Step-by-step explanation:

The Midsegment Theorem states that the segment connecting the midpoints of two sides of a triangle (in this case AB and  AC) is parallel to the third side (BC) and half as long.

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3 years ago
Help pls pls plss!!! asap
alekssr [168]

Step-by-step explanation:

angle 1=180-(90+58)

=180-148

=32

angle1=angle2=32

angle3=180-(108+32)

=180-140

=40°

7 0
3 years ago
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