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3 years ago

Help with #4!!! I’ve tried to figure it out but I can’t.

Mathematics

2 answers:

vlada-n [284]3 years ago

6 0

Answer:

(x^3 + 6x^2) / (80x + 64)

Last option

Step-by-step explanation:

Top:

1/8 + (x+4)/(16)

= 2/16 + (x+4)/(16)

=(2+x+4)/16

=(x + 6)/16

Bottom:

(x+4)/x^2 + 4/x

= (x+4)/x^2 + 4x/x^2

=(x + 4 + 4x)/x^2

= (5x+4) / x^2

So now you have:

(x + 6)/16 / (5x+4) / x^2

= (x + 6)/16 * x^2 / (5x+4)

= (x^3 + 6x^2) / (80x + 64)

Answer is the last one

Virty [35]3 years ago

3 0

Answer:

Step-by-step explanation:

all you do is divied the top then you take from

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B.HELPPPP MEEEE PLSSSS AND THANK YOUU

Gemiola [76]

Answer:

A. (3, 8) and $2\sqrt{2}$

B. (2, 4) and $2\sqrt{10}$

Step-by-step explanation:

Midpoint formula: $(\frac{x1+x2}{2} ,\frac{y1+y2}{2})$

Distance formula: $\sqrt{(x_{2}-x_{1}) ^2+(y_{2}-y_{1}) ^2 }$

A. plug in the points in the formulas

(4, 7) and (2, 9)

Midpoint:

$(\frac{4 + 2}{2} , \frac{7+9}{2} )=6/2, 16/2 = (3,8)$

Length:

$\sqrt{(2-4)^2+(9-7)^2}=\sqrt{4+4} =\sqrt{8} =2\sqrt{2}$

(5, 5) and (-1, 3)

Midpoint:

$(\frac{5-1}{2} , \frac{5+3}{2} )=4/2,8/2=(2,4)$

Length:

$\sqrt{(-1-5)^2+(3-5)^2} =\sqrt{-6^2+-2^2} =\sqrt{36+4} =\sqrt{40} = 2\sqrt{10}$

Can you consider marking my answers as brainliest lol it would mean a lot. Hope this helped.

4 0

2 years ago

Randy and Sandy have a total of 20 books between them. After Sandy loses three by leaving them on the bus, and some birthday gif

nasty-shy [4]

Answer:

Randy had 13 books an Sandy had 7 books.

Step-by-step explanation:

20 - 3 = 17

30 - 17 = 13

13 x 2 = 26

26 + 4 = 30

13 + 7 = 20

Hope this helps! Please mark as brainliest.

3 0

3 years ago

A cone with diameter 20 cm and a height of 20 cm. Find the volume of the cone rounded to the nearest tenth.

zhuklara [117]

Answer:

2094.4 cm³

Step-by-step explanation:

The volume of a cone =πr²h/3

Where

r = radius = Diameter/2

Diameter = 20cm, radius = 20cm/2 = 10cm

Height = 20cm

Volume of a cone = π × 10² × 20/3

Volume of a cone = 2094.3951 cm³

Approximately to the nearest tenth = 2094.4 cm³

Therefore , the volume of a cone = 2094.4 cm³

8 0

3 years ago

Pls help best answer will get brainiest

agasfer [191]

Answer:

Point A and point B have 11 units between

Step-by-step explanation:

If the distance between 0 and 10 is 10 also known as the absolute value, you just add one more unit because it starts at -1

So 10 + 1 = 11 and because we are using 10 is greater than 1 its positive so the answer is 11

Hope this helps :)

8 0

3 years ago

Please help with this

Degger [83]

All of them are wrong its 91 but if you want click or circle 90

3 0

3 years ago