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3 years ago

I NEED HELP WITH THIS ( IM IN LIVE ADN I NEED IT DONE TODAY) all you need to do is explain it.

Mathematics

1 answer:

wel3 years ago

3 0

5

Explanation: To find the rate of change we need to plug the numbers into the formula of x1-x2/y1-y2

So we need to get the biggest and smallest numbers for each row so the equation would look like this

500-300/40-0 so the answer would be 5 have a nice day (:

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Find the slope of the line passing through the points (9, 1) and (-3, -3). Describe the slope as positive, negative, zero, or un

GarryVolchara [31]

Answer:

<h3>Given points:-</h3>

(9,1)
(-3,-3)

We have to find slope =m

As we know that

${\boxed{\sf Slope_{(m)}=\dfrac {y _2-y_1}{x_2-x_1}}}$

Substitute the values

$\qquad {:}\longrightarrow\sf m=\dfrac {(-3-1)}{(-3-9)}$

$\qquad {:}\longrightarrow\sf m=\dfrac {-4}{-12}$

$\qquad {:}\longrightarrow\sf m={\dfrac {1}{3}}$

$\therefore\sf Slope\;of\;the\:line=\dfrac {1}{3}(undefined)$

6 0

3 years ago

A transformation of ΔDEF results in ΔD'E'F'.

sladkih [1.3K]

Answer:

Rotation

Step-by-step explanation:

A transformation of a triangle can be either dilation or reflection or rotation or a translation.

Dilation happens when a symmetric figure is formed with scale factor other than 1. But here both triangles have same side length. Hence no dilation

Reflection happens when it is reflected over a line as we see in a mirror. But here the two triangles are not looking as images on a line. Hence no reflection

Rotation is keeping the same shape but rotating through a certain angle. Here DEF is rotated without disturbing its shape or size through a certain angle. Hence rotation is right

Translation is not right because there is no vertical or horizontal shift to get new triangle.

6 0

3 years ago

Read 2 more answers

Of the 50 US states four have names that start with the letter W? What percentage of the US states have names that start with th

zlopas [31]

create a fraction of the 4 states out of 50 and multiply by 100% to express as a percentage, that is

$\frac{4}{50}$ × 100% = $\frac{400}{50}$ = 8%

7 0

3 years ago

5x4 - 29x3 +21x2 - 8x + 15<br> X-5

Helga [31]

Answer:

5x^4−29x^3+21x^2+7x−5

Step-by-step explanation:

5 0

3 years ago

Can someone help me solve this differentiation/tangent problem?

nirvana33 [79]

A)

$\bf g'(x)=\stackrel{product~rule}{2x\cdot f(x)+x^2\cdot f'(x)}\quad 
\begin{cases}
x=5\\
f(5)=5\\
f'(5)=5
\end{cases}
\\\\\\
g'(5)=2(5)\cdot f(5)+(5)^2\cdot f'(5)\implies g'(5)=50+500\\\\\\ g'(5)=550\\\\
-------------------------------\\\\
g(5)=(5)^2f(5)\implies g(5)=125
\\\\\\
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}
\begin{cases}
x=5\\
y=125\\
\stackrel{m}{g'(5)}=550
\end{cases}\implies y-125=550(x-5)
\\\\\\
y-125=550x-2750\implies y=550x+400$

b)

$\bf h'(x)=\stackrel{quotient~rule}{\cfrac{f'(x)(x-6)~~-~~f(x)\cdot 1}{(x-6)^2}}\quad 
\begin{cases}
x=5\\
f(5)=5\\
f'(5)=5
\end{cases}
\\\\\\
h'(5)=\cfrac{f'(5)(5-6)~~-~~f(5)\cdot 1}{(5-6)^2}
\\\\\\
h'(5)=\cfrac{5(-1)-5}{(-1)^2}\implies h'(5)=-10\\\\
-------------------------------\\\\$

$\bf h(5)=\cfrac{f(5)}{5-6}\implies h(5)=\cfrac{5}{-1}\implies h(5)=-5
\\\\\\
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\quad 
\begin{cases}
x=5\\
y=-5\\
\stackrel{m}{-10}
\end{cases}\implies y-(-5)=-10(x-5)
\\\\\\
y+5=-10x+50\implies y=-10x+45$

3 0

4 years ago