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3 years ago

7. Chase and Zane are both driving to see their grandmothers. Zane has to drive 50

Mathematics

2 answers:

ankoles [38]3 years ago

4 0

i think its zane casue he is going faster

Katarina [22]3 years ago

4 0

Answer:

Chase because it will take him less time.

Step-by-step explanation:

I took the test and got it right.

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Which angles are supplementary to eachother

Harman [31]

Answer:

14 and 15

Step-by-step explanation:

6 0

3 years ago

Sorry to waste time, but could you help? 5/3(4/3a+9b+2/3a) simplified, take your time! I’m not the best at math so :p

mixas84 [53]

Answer:

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Step-by-step explanation:

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5 0

3 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

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

We substitute

$x = r \cos( \theta)$

$y = r \sin( \theta)$

and

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

This implies that

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

Let us evaluate the exponents to get:

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

Factor the RHS to get:

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

Divide through by r²

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

Apply the double angle identity

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

The polar equation then becomes:

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

7 0

3 years ago

What is 8 * 3/4 hour

Pachacha [2.7K]

78 * 3/4 hour,
it is 6 hours

5 0

3 years ago

Read 2 more answers

How can I simplify b x b x b x b

ycow [4]

Answer:

b⁴

Step-by-step explanation:

b x b x b x b

b² x b²

b⁴

4 0

2 years ago