2 years ago

The square pyramid pictured below has a surface area of 9 m 6 m 6 m

Mathematics

2 answers:

disa [49]2 years ago

6 0

You should post with a picture

Genrish500 [490]2 years ago

5 0

Hey,just to let you know that they is no picture as I can’t answer it.

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Emmanuel carves a cone-shaped hollow out of a solid clay cylinder. What is the approximate volume of the solid portion of the cy

bixtya [17]

Answer:

$3.14r^2(h-\frac{1}{3}h_1)$

Step-by-step explanation:

Let h be the cylinders height and r the radius.

-The volume of a cylinder is calculated as:

$V=\pi r^2h$

-Since the cone is within the cylinder, it has the same radius as the cylinder.

-Let $h_1$ be the height of the cone.

-The area of a cone is calculated as;

$V=\pi r^2 \frac{h}{3}\\\\=\frac{1}{3}\pi r^2h_1$

The volume of the solid section of the cylinder is calculated by subtracting the cone's volume from the cylinders:

$V=V_{cy}-V_{co}\\\\=\pi r^2h-\frac{1}{3}\pi r^2 h_1, \pi=3.14\\\\=3.14r^2(h-\frac{1}{3}h_1)$

Hence, the approximate area of the solid portion is $3.14r^2(h-\frac{1}{3}h_1)$

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3 years ago

[URGENT] (25 points) Ryan randomly drew a marble out of a bag of marbles, then put it back. He did

Alenkasestr [34]

Answer:

Unpredictable

Step-by-step explanation:

Cuz if u look at it it is also random and u cant predict a random thing, so its quite simply unpredictable

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2 years ago

Jerry plans to keep up this saving pattern until he can no longer afford it.At that time, he

natta225 [31]

<h3><em>Answer: </em></h3><h3><em> I think the first answer is S(t) = 2^t - 1 .</em> </h3>

7 0

2 years ago

The German Club is planning a ski trip. The club will pay $500 toward the trip, and each member going on the trip will pay $115.

Vedmedyk [2.9K]

500 - y x 115= 2185.

y = 19.

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3 years ago

Plzzzz help !!!! 15 points

ArbitrLikvidat [17]

Answer:

1. 17,20

2. 40,80

Step-by-step explanation:

1. 5+3=8

8+3=11

11+3=14

14+3=17

17+3=20

pattern is +3

2. 2.5*2=5

5*2=10

10*2=20

20*2=40

40*2=80

pattern is *2

6 0

3 years ago

Read 2 more answers