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goblinko [34]
3 years ago
11

What is the square root of 81

Mathematics
2 answers:
valkas [14]3 years ago
3 0

Answer:

9

plz mark as brainliest

Yuki888 [10]3 years ago
3 0

Answer:

9

Step-by-step explanation:

\sqrt{81} =9

9 x 9 = 81

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Round off 0.043 to one significant figure
aniked [119]
Hey there :)

0.043
The first 0 before the decimal point is not significant since it is used for cosmetic purpose
The 0 after the decimal is not significant as the 0 is used to locate the decimal point
The 4 is the first nonzero integer and it counts as a significant figure

Therefore, 0.04 will be your answer rounded to 1 s.f
4 0
3 years ago
Read 2 more answers
What the lateral and surface area of this figure
tamaranim1 [39]

Answer:

Lateral Surface Area = 314^2 inch = 314.86 square inch

To find Lateral Area

First we square two of the sides of the top to find the hypotenuse which is also the height of the side triangles.

Here we take 5^2 6^2 = 25 +36 = 61

as a decimal √61 ≈ 7.8102

7.8102 x 5 = 39.051 is the Surface area of the top of the shape we will call this p.

Therefore Surface area =, b x h + p x l  = 30 x 3 =90 + (40.81 x 6)

=224.86 +90 = 314.86^2 inch = Lateral SA

p= b+h+c = 5 x 6 =30  + 3 + 7.81 = 40.81sq2

Step-by-step explanation:

6 x 5 =35 x 2 = 70

3 x 5 =15 x 2 = 30

6 x 3 = 18 x 2 = 36

              Area only if base and top was the same    =  +136cm^2

This area is invalid. So it is really important to learn hypotenuse.

Volume is much easier and can guide you for reverse workings more for same sides. The shape above has not got the same sides. There is no surface area only lateral area at top.

V= 45^3inch = 45 cube inch

Just like a rectangle box but half its size as all opposite sides are the same. and the top and base can create a square by using the sides.

To do ths we half the end area.

6 x 3 x 5 = 18 x 5 = 90 sq3

half of this is 45 cube inch volume.

3 0
3 years ago
Can someone please help me
azamat

Given:

angle ECB=51 degrees

=>

angle EOB = 2*angle ECB = 2*51 = 102 degrees = arc EAB


Also given minor arc AB = 72 degrees

therefore

minor arc EA = 102-72=30 degrees

5 0
3 years ago
Read 2 more answers
PLEASSEEE HELPPPP ME EITH THIS!!
Hunter-Best [27]

Answer:

PQ = 98.21

Step-by-step explanation:

PQ/23 = 47/11

PQ × 11

23 × 47

11PQ = 1081

11PQ/11 = 1081/11

PQ = 98.21

7 0
2 years ago
Find the GCF of 32 and 72
Ilya [14]

Answer:

8

Step-by-step explanation:

Hope this helps :)

3 0
2 years ago
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