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Orlov [11]
3 years ago
13

Rewrite 0.81 x 104 in scientific notation. x 10 HELP ME

Mathematics
2 answers:
aev [14]3 years ago
4 0
0.81 x 10^4
= 8.1 x 10^3
Rama09 [41]3 years ago
4 0

Answer:

Ok ill help i guess

Step-by-step explanation:

0.81 X 10000

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The pizza has an area of 78.5 in². What is the minimum width of a placemat that can be placed underneath it so that the pizza do
xz_007 [3.2K]

Answer:

The minimum width of the placemat is 10 inches.

Step-by-step explanation:

Let suppose that placemat has a square form, whose width must be at least equal to the diameter of the pizza, so that pizza does not touch the table. Hence, the following relationship is obtained:

w = D

Where:

w - Width of the placemat, measured in inches.

D - Diameter of pizza, measured in inches.

The area of the pizza, measured in square inches, is determined by this formula:

A = \frac{\pi}{4} \cdot D^{2}

The diameter is cleared afterwards:

D = \sqrt{\frac{4\cdot A}{\pi} }

If A = 78.5\,in^{2} and \pi = 3.14, then:

D = \sqrt{\frac{4\cdot (78.5\,in^{2})}{3.14} }

D = 10\,in

The minimum width of the placemat is 10 inches.

4 0
4 years ago
Read 2 more answers
The distance between river city and pine bluff is 6 inches what is the scale of the map
son4ous [18]
The distance between pine bluff and river city is approx. 535.1 miles ( i had to search this up because without that information you cant find out your scale). 535.1 miles is 2 825 328 feet (or 535.1 X 5 280, because there are 5280 feet in a mile), and 2 825 328 feet is <span>33 903 936 inches (or 2 825 328 X 12, because there are 12 inches in a foot). Now if you take 33 903 936, and divide it by 6, which was how many inches were shown on your map, you get </span><span>5 650 656. and so, the scale on your map is 1:5 650 656, or for every 1 inch on your map, there are 5 650 656 inches in real life.</span>
8 0
3 years ago
three consecutive intergers have a sum of 30. Which equation can be used to find x, the value of the smallest of three numbers
prohojiy [21]

Answer:

x+ x+1 + x+2 = 30

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Step-by-step explanation:

Let x be the smallest integer

x+1 be the next smallest

x+2 be the third

x+ x+1 + x+2 = 30

Combine like terms

3x+3 =30

8 0
3 years ago
If c is the hypotenuse of a right triangle,find the missing side. If necessary, round to the nearest hundredth. c=sqrt(155), b=s
Lunna [17]
A^2 + 31 = 155  - I squared each of b and c for those numbers
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6 0
4 years ago
Find slope please help
Alecsey [184]

Answer:

slope = 6

Step-by-step explanation:

formula is y = 6x - 3

6/1 or 6 is the slope

4 0
3 years ago
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