2 years ago

Find a polar equation for the curve given by the cartesian equation y = 2x 2 .

Mathematics

1 answer:

Aleks04 [339]2 years ago

4 0

The first has no r , only 0 since it is a straight line.

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Which expression is equivalent to: (x +9)(x+3)

labwork [276]

Answer:

Step-by-step explanation:

x*x=x^2

x*9=9x

x*3=3x

9x+3x=12x

9x3=27

x^2+12x+27

6 0

2 years ago

Read 2 more answers

7. Write the equation of a line which passes through the points (-3,5) and (6,23)

faust18 [17]

Answer:

answer to the equation is

$y = 2x + 11$

Step-by-step explanation:

$y = mx + b$

first find the slope of the line using the two points

$slope \: m = \frac{y2 - y1}{x2 - x1} = \frac{23 - 5}{6 - ( - 3)} \\ = \frac{18}{9} \\ slope \: m = 2$

substitute 2 for m and use one of the points for x and y and solve for b

$5 = 2( - 3) + b \\ 5 = - 6 + b \\ 5 + 6 = b \\ b = 11$

Now that you found b, the y-intercept, you can substitute that into the equation for your line

$y = 2x + 11$

7 0

2 years ago

Arnold takes 12 minutes to swim 10 lengths of a pool whose length is 50 meters. If he swims at a constant speed, how long does i

Phoenix [80]

It will take him 240 min and if u convert that it will take him 4 hours

5 0

2 years ago

Can somebody help me do this?

saveliy_v [14]

Answer:

a) Point Q

b) Sides SQ,RQ

c)Angle RQT and Angle Q

Step-by-step explanation:

6 0

3 years ago

Evaluate 3/7 r + 5/8 s when r is 14 and s is 8

forsale [732]

Answer:

Step-by-step explanation:

Making the appropriate substitutions, we get

3/7 r + 5/8 s => 3/7 (14) + 5/8 (8).

Notice how this can reduced:

3(14) 5(8)

----------- + --------- = 6 + 5 = 11

7 8

6 0

2 years ago