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Studentka2010 [4]
3 years ago
8

X^2-y^2=3y in polar form

Mathematics
1 answer:
Assoli18 [71]3 years ago
5 0

Answer:

Step-by-step explanation:

put x=r cos θ

y=r sin θ

r²cos²θ-r²sin²θ=3rsin θ

r²(cos²θ -sin²θ)=3r sin θ

r²cos 2θ=3rsinθ

r cos 2θ=3 sin θ

r=3sec 2θ sin θ

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Yolanda is planning to put a pool in her backyard. The scaled model below gives the reduced measures for diameter and depth. The
atroni [7]

Answer:

C option: 6 feet

Step-by-step explanation:

Since Yolanda wants to keep the pool in proportion to the model, the ratio of diameter to depth of model and the pool will be same.

Let the depth of pool is x feet.

Ratio of Diameter to Depth of Model = Ratio of Diameter to Depth of pool

This means the depth of pool should be 6 feet if Yolanda wants to keep the pool in proportion to the model.

Plz give brainliest

4 0
3 years ago
Read 2 more answers
Use skip counting and the number line to find the missing number.<br> 3X__=12
loris [4]

Answer:


Step-by-step explanation:

3 times 4 is 12. you can solve this by dividing 12 by 3, or by skip counting and using repeated addition.

7 0
3 years ago
Find 2 consecutive odd integers sum of who's square is 290​ pls send fast
ELEN [110]

Answer:

<h3>Hence required integers are 11 and 13</h3>

Let x an odd positive integer

Then, according to question

x^2 +(x+2)^2=290

2x^2 +4x−286=0

x^2 +2x−143=0

x ^2+13x−11x−143=0

(x+13)(x−11)=0

x=11 as x is positive

Hence required integers are 11 and 13

Step-by-step explanation:

Hope it is helpful....

7 0
3 years ago
Which of the following verbal expression represents the algebraic expression x/2+5
ycow [4]
It would be 5 more than half of a number.
6 0
3 years ago
Jim drove 436 miles using 16 gallons of gas. At this rate, how many limes would he drive using 14 gallons of gas?
almond37 [142]
The ratio here is 16:436.
The easiest way to solve this is finding how many miles Jim can drive using just 1 gallon. We can do this by dividing both sides of the ratio by 16.

16÷16 is 1
436÷16 is 27.25
so our new ratio is 1 gallon:27.25 miles.

next we simply multiply both sides by 14.
1x14=14
27.25x14=381.5 miles :)
7 0
3 years ago
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