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2 years ago

Help me please I beg please but please

Mathematics

1 answer:

stealth61 [152]2 years ago

4 0

Answer:

9. $\frac{1}{10}$ fraction.

10. $\frac{3}{10}$ fraction.

Step-by-step explanation:

In the given table, we get, Andrea hiked $\frac{2}{5}$ of the total trail, Jon hiked $\frac{1}{2}$ of the total trail and Callie hiked $\frac{4}{5}$ of the total trail.

9. Therefore, Jon hiked $(\frac{1}{2} - \frac{2}{5}) = \frac{5 - 4}{10} = \frac{1}{10}$ fraction than Andrea hiked.

10. Therefore, Callie hiked $(\frac{4}{5} - \frac{1}{2}) = \frac{8 - 5}{10} = \frac{3}{10}$ fraction than Jon hiked. (Answer)

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nika2105 [10]

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3 years ago

All of the points in the graph are on the same line. Find the slope of the line.

geniusboy [140]

Answer:

The slope of the line is $\frac{1}{2}$ .

Step-by-step explanation:

☆Remember:

$m = \frac{y_2 - y_1}{x_2 - x_1}$

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$m = \frac{7 - 3}{9 - 1} = \frac{4}{8} = \frac{1}{2}$

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3 years ago

Write -3+4i in the form r(cosx+isinx)

Zanzabum

$-3+4i$ is a complex number that satisfies

$\begin{cases}r\cos x=-3\\[1ex]r\sin x=4\\[1ex]r=\sqrt{(-3)^2+4^2}\end{cases}$

The last equation immediately tells you that $r=5$ .

So you have

$\begin{cases}\cos x=-\dfrac35\\[1ex]\sin x=\dfrac45\end{cases}$

Dividing the second equation by the first, you end up with

$\dfrac{\sin x}{\cos x}=\tan x=\dfrac{\dfrac45}{-\dfrac35}=-\dfrac43$

Because the argument's cosine is negative and its sine is positive, you know that $\dfrac\pi2$ . This is important to know because it's only the case that $y=\tan x\implies \arctan y=x$ whenever $-\dfrac\pi2$ . The inverse doesn't exist otherwise.

However, you can restrict the domain of the tangent function so that an inverse can be defined. By shifting the argument of tangent by $\pi$ , we have

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All this to say

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3 years ago

What are the solutions of the following system? y=-2x^2 y=x-2

vovikov84 [41]

Answer:

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Step-by-step explanation:

Since both of the x terms are equal to y we can equate the x terms:-

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3 years ago

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statuscvo [17]

Answer:

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2 years ago

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