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3 years ago

2.6 1.8 4.2 3.3 how do i estimate these decimals

Mathematics

2 answers:

siniylev [52]3 years ago

5 0

Answer:

Step-by-step explanation:

So for 2.6 you move it up so it would be 3 and 1.8 will be 2 and so on so if the number number next to the other number is grater you change it if the numbe is smaller yo leave it the same

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Bond [772]3 years ago

3 0

Hello!

If the digit just to the right of it is less than 5, drop the digit to the left one. If the digit is greater than 5, you round it to the next decimal. So, the answers are:

2.6 rounded = 3 because 6 is greater than 5.

1.8 rounded = 2 because 8 is greater than 5.

4.2 rounded = 4 because 2 is less than 5.

3.3 rounded = 3 because 3 is less than 5.

I hope you found this helpful! c:

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3 years ago

Here is a triangular pyramid and its net.

bazaltina [42]

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Step-by-step explanation:

We are given the following dimensions of the triangular pyramid:

Side of triangular base = 6mm

Height of triangular base = 5.2mm

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Height of lateral face (triangular) = 8mm

a) To find Area of base of pyramid:

We know that it is a triangular pyramid and the base is a equilateral triangle. $\text{Area of triangle = } \dfrac{1}{2} \times \text{Base} \times \text{Height} ..... (1)\\$