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katovenus [111]

3 years ago

15

4b+5=1+5b B=____ What do I do....I kinda forgot how to do this...

1 answer:

murzikaleks [220]3 years ago

8 0

Answer:

b = 4

Step-by-step explanation:

4b + 5 = 1 + 5b

4b-5b + 5 = 1

4b-5b = 1 - 5

-b = 1 - 5

-b = -4

-b = -4

b - 4

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3 years ago

Gerald has a punch bowl in the shape of a hemisphere as shown below.

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<h3>How to determine the number of cups?</h3>

The given parameters are:

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So, we have:

r = 6

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2 years ago

Convert the Cartesian equation (x 2 + y 2)2 = 4(x 2 - y 2) to a polar equation.

SashulF [63]

<u>ANSWER</u>

${r}^{2} = 4 \cos2\theta$

<u>EXPLANATION</u>

The Cartesian equation is

${( {x}^{2} + {y}^{2} )}^{2} = 4( {x}^{2} - {y}^{2} )$

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$x = r \cos( \theta)$

$y = r \sin( \theta)$

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${x}^{2} + {y}^{2} = {r}^{2}$

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${r}^{4} = 4({ {r}^{2} \cos^{2}\theta } - {r}^{2} \sin^{2}\theta)$

Factor the RHS to get:

${r}^{4} = 4{r}^{2} ({ \cos^{2}\theta } - \sin^{2}\theta)$

Divide through by r²

${r}^{2} = 4 ({ \cos^{2}\theta } - \sin^{2}\theta)$

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7 0

3 years ago