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3 years ago

PLZZZZ answer correctly!! it's IMPORTANT!!

Mathematics

1 answer:

lara [203]3 years ago

4 0

This is what I got and hopefully it helps.

1.A The dot is not filled and it points in the left direction

2.B The dot is filled and it points to the left

3.A The dot is not filled and it is pointed in the left direction

4.C The dot is filled and is pointing in the right direction.

Whenever you have a filled dot it will always be a greater than or equal to or less than or equal to. When the dot is not filled, the answer will always be greater than or less than.

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Can't figure it out!!

Zanzabum

$\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
\begin{array}{llll}
average\ rate\\
of\ change
\end{array}\\\\
-------------------------------\\\\
f(x)= \cfrac{1}{x} \qquad 
\begin{cases}
x_1=2\\
x_2=b
\end{cases}\implies \cfrac{f(b)-f(2)}{b-2}=-\cfrac{1}{10}
\\\\\\
\cfrac{\frac{1}{b}-\frac{1}{2}}{b-2}=-\cfrac{1}{10}\implies 
\cfrac{\frac{2-b}{2b}}{b-2}=-\cfrac{1}{10}\implies \cfrac{2-b}{2b}=-\cfrac{b-2}{10}
\\\\\\
$

$\bf \cfrac{2-b}{2b}=\cfrac{2-b}{10}\implies 20-10b=4b-2b^2\impliedby cross-multiplying
\\\\\\
2b^2-4b-10b+20=0\implies 2b^2-14b+20=0
\\\\\\
b^2-7b+10=0\implies 
(b-2)(b-5)=0\implies b=
\begin{cases}
\boxed{5}\\
2
\end{cases}$

8 0

3 years ago

Please help!!

Inessa05 [86]

Let the width = w.
The length is 6 times the width, so the length is 6w.
The perimeter is 70.
P = 2L + 2W

70 = 2(6w) + 2(w)

70 = 12w + 4w

70 = 14w

5 = w

The width is 5.
The length is 6 times the width, so the length is 6 * 5 = 30

Area of rectangle = LW

A = 5 * 30 = 150

8 0

3 years ago

The parabola y=x^2 is shifted up by 8 units. What is the new equation of the parabola?

elixir [45]

Answer:

y=x^2+8

Step-by-step explanation:

5 0

2 years ago

At the start of a hike a hiker was at an elevation of -50 feet or zero represents sea level the hiker climbs at a rate of 15 fee

JulijaS [17]

-50 + 15T > 5

See the image for a breakdown of what these terms mean/how they’re measured!

7 0

2 years ago

Help me plz im stuck

viva [34]

Answer:

A) Fill the blanks, Fail, 0.15, Success, 244, 0.61

B) 240 times

Step by-step explanation:

A) Void , 96, 0.24

Fail, 60, it should be 0.15 because 60/400

Success, 400 - 96- 60 or 244 and the relative frequency is 0.61.

There is a total of 1000. If the relative frequency is 0.24, multiply 0.24 by 1000 to get the amount of times YOU would expect to be VOID.

Or in other words , 240 times

By proving it add all up

0.24 x 1000 + 0.76 x 1000 = 1000

<h3><u><em>Hope this helps!!!</em></u></h3><h3><u><em>PLEASE GIVE BRAINLIEST!!!</em></u></h3><h3><u><em>APPRECIATE IT!!!</em></u></h3><h3><u><em>AND AS ALWAYS,</em></u></h3><h3><u><em>SIMPLIFY BANANAS : )</em></u></h3>

7 0

3 years ago