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3 years ago

Please help and explain

Mathematics

1 answer:

Nesterboy [21]3 years ago

4 0

Answer:

Step-by-step explanation:

Proportional functions are of the form y=kx where k is the constant of proportionality.

k=y/x in this case

k=1008/3.5

k=288

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Inessa [10]

Ten thousands

if you're speaking of place value?

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3 years ago

Read 2 more answers

Solve each equation by completing the square <br>r² = –12r - 35

Fittoniya [83]

Answer:

r = - 7, r = - 5

Step-by-step explanation:

Given

r² = - 12r - 35 ( add 12r to both sides )

r² + 12r = - 35

To complete the square

add ( half the coefficient of the r- term )² to both sides

r² + 2(6)r + 36 = - 35 + 36

(r + 6)² = 1 ← take the square root of both sides )

r + 6 = ± 1 ( subtract 6 from both sides )

r = - 6 ± 1, thus

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3 years ago

1) Suppose f(x) = x2 and g(x) = |x|. Then the composites (fog)(x) = |x|2 = x2 and (gof)(x) = |x2| = x2 are both differentiable a

Rufina [12.5K]

Answer:

This contradict of the chain rule.

Step-by-step explanation:

The given functions are

$f(x)=x^2$

$g(x)=|x|$

It is given that,

$(f\circ g)(x)=|x|^2=x^2$

$(g\circ f)(x)=|x^2|=x^2$

According to chin rule,

$(f\circ g)(c)=f(g(c))=f'(g(c)g'(c)$

It means, $(f\circ g)(c)$ is differentiable if f(g(c)) and g(c) is differentiable at x=c.

Here g(x) is not differentiable at x=0 but both compositions are differentiable, which is a contradiction of the chain rule

3 0

3 years ago

Please help with the question below

lora16 [44]

Considering the unit circle, it is found that the sine is negative on the third and on the fourth quadrant.

<h3>What is the unit circle?</h3>

For an angle $\theta$ the unit circle is a circle with radius 1 containing the following set of points: $(\cos{\theta}, \sin{\theta})$ .

Hence, from the above explanation, the sine is negative when y is negativem, which is on the third and on the fourth quadrant.

More can be learned about the unit circle at brainly.com/question/16852127

#SPJ1

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1 year ago

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slavikrds [6]

Answer:

Did you ever figure out the answer to this question? And if so, did you figure out how to solve it.

Step-by-step explanation:

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3 years ago