3 years ago

Help quick I have 30 minutes left

Mathematics

2 answers:

pashok25 [27]3 years ago

3 0

Use tiger algebra it help

prohojiy [21]3 years ago

3 0

Answer:

I believe B and C are correct. Maybe another but I don't think so.

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Convert x2 + y2 -4x = 0 to polar form.

Bingel [31]

Answer:

$r(r-4\cos \theta)=0$

Step-by-step explanation:

We are given the following equation:

$x^2 + y^2 -4x = 0$

We have to convert it into polar form.

We put

$x = r \cos \theta\\y = r\sin \theta$

Putting values, we get:

$x^2 + y^2 -4x = 0\\(r\cos \theta)^2 + (r\sin \theta)^2 - 4(r\cos \theta) = 0\\r^2(\cos^2 \theta + \sin^2 \theta) - 4r\cos \theta = 0\\r^2 - 4r\cos \theta = 0\\r(r-4\cos \theta)=0$

is the required polar form.

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3 years ago

Identify all the points that are on the following quadratic function: y = x^2 - 3x

Bad White [126]

THE ANSWER IS A AND B

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Find an explicit rule for the nth term of the sequence.

taurus [48]

Answer: -4 . 2ⁿ⁻¹

Step-by-step explanation: This is a geometric progression

the nth term is given by arⁿ⁻¹

a = the first term of the sequence

r = common ratio

n= number of terms

for this sequence

a = -4

r = -8/-4 = 2

nth term, an = -4 . 2ⁿ⁻¹

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3 years ago

At a party, everyone shook hands with everybody else. There were 66 handshakes. How many people were at the party?

Neporo4naja [7]

Every body has two hands so we have to multiply 66 by 2.

66 multiplied by 2 is equal to 132

The answer is 132.

hope it helps.

Can you choose mine as the brainliest answer <u><em>please please?</em></u>

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A bicycle is now selling for $315 it was discounted by 60 percent. What was the original cost.

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