HELP ASAP!!! What is a net? What can we use a net for? How can a net be used to find surface area?

2 answers:

6 0

Is a flattened out three dimensional solid (a three dimensional shape) -- like a cube, a prism or a pyramid. When you cut out the "net", fold it and glue it together you can see what the three dimensional shape looks like.

alexira [117]3 years ago

5 0

For example, if the length of one side of the cube 4 units then the area of one its face is 4 × 4 = 16 square units. From the net, we can see that there are six equal faces and so we get the total surface area is 6 × 16 = 96 square units. Example 1: Find the surface area of the given rectangular prism in square cm.

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Would you classify the number 289 as a perfect square, perfect cube, both, or neither?

Black_prince [1.1K]

Answer:

a perfect square because 17 x 17 = 289

It's not a perfect cube

Step-by-step explanation:

7 0

3 years ago

What is the greatest common factor of the numerator and denominator of the rational expression below? 5x-20/x^2-2x-8

OleMash [197]

Factories both equations:
5(x - 4) / (x + 2)(x - 4)

Then take out the common brackets:
5 / x + 2

Minus 2 from both sides:
3 / x

If you are looking for the greatest common factor of the numerator and denominator, the answer would be (x - 4)

8 0

3 years ago

Create a numeric vector called age whose elements contain the ages of three people you know, where the names of each element cor

erik [133]

Answer:

age<-c(20,30,40)

names(age)<-c ("ELI", "ALI", "JON")age

## ELI ALI JON

## 20 30 40

Step-by-step explanation:

The above given vector named age consists of three elements. Each element consists of ages of three people, ELI, ALI and JON, such that 20 corresponds to ELI, 30 to ALI and 40 to JON.

8 0

3 years ago

Micah is preparing for a piano recital. He practices for 50 minutes on Monday and 90 minutes on Wensday

SCORPION-xisa [38]

Answer:

She increased 80% the practise time

Step-by-step explanation:

The question is incomplete, the following is missing:

<em>by how much did she increase the time she practised each day? </em>

From Monday to Wednesday she increased 90 - 50 = 40 minutes the practise time.

To compute the increment as a percentage use: increment/reference *100

In this case, that is: 40/50*100 = 80%, where 50 minutes is taken as a reference.