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Varvara68 [4.7K]
2 years ago
9

Ariah has a hot air balloon. When full, the balloon is a sphere with a radius of 999 meters. She fills it with hot air whose den

sity is 0.90.90, point, 9 kilograms per cubic meter. Since this is less dense than the air in the atmosphere, the balloon is carried upwards. How much air does Ariah need to fill the balloon? Round your answer, if necessary, to the nearest integer. kilograms
Mathematics
1 answer:
zhannawk [14.2K]2 years ago
8 0

Answer:

Ariah needs 2748 kilograms of air to fill the balloon.

Step-by-step explanation:

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A computer is normally $899 but is discounted to $799. What percent of the original price does Shawn pay?
Oksi-84 [34.3K]
<span>A computer is normally $899 but is discounted to $799.
Question: What percent of the original price does Shawn pay?
=> 799 dollars is the discounted price
=> 899 dollars is the original price
=> 899 – 799 = 100 dollars – the discount price that was deducted to the original price.
Solution
=> 100 / 899 = 0.11
=> 0.11 * 100% = 11%
Thus, the computer has a discount of 11%.</span>



4 0
2 years ago
A landscaper has 125 tiles to build a square patio. The patio must have an area of at least 80 square feet.
dolphi86 [110]
Given that a square patio of at least 80 square feet is to be built from 125 tiles of length 12 inches or 1 feet.

Part A;
Since there are 125 tiles and the patio has a shape of a square of at least 80 square feet, then the possible dimensions of the patio are

9 ft by 9 ft = 81 ft
10 ft by 10 ft = 100 ft, and
11 ft by 11 ft = 121 ft.


Part B.
For a patio of dimensions, 9ft by 9ft, the number of tiles that will not be used is given by 125 - 81 = 44

For a patio of dimensions, 10ft by 10ft, the number of tiles that will not be used is given by 125 - 100 = 25

For a patio of dimensions, 11ft by 11ft, the number of tiles that will not be used is given by 125 - 121 = 4
6 0
2 years ago
Read 2 more answers
Mr. Deets is making an array to display 9 pictures. For each pair of different factors, there are two arrays he can make. How ma
tatiyna

3 arrays - 1 x 9 (or 9 x 1) and 3 x 3

Hence, the number of arrays = 2 x 2 = 4 = even

First, we pair the different factors of 9.

The different factors of 9 are:

(1, 9) and (3, 3)

For each pair, Mr. Deets can make 2 arrays.

So, the total number of arrays that Mr. Deets can make = 2 x 2 = 4 and hence the number of arrays is even.

6 0
2 years ago
Read 2 more answers
Vivian surveyed bicyclists in her community to see the average number of miles they biked per day. Her results are shown below.
Alex

Answer:

MAD of her data set is 4.

Step-by-step explanation:

Vivian surveyed bicyclists in her community to see the average number of miles they biked per day.

The data set is given below :

7, 10, 13, 4, 12, 21, 10, 3

mean=\frac{\text{Sum of data set}}{\text{number of values}}

=\frac{(7+10+13+4+12+21+10+3)}{8}

=\frac{80}{8}

= 10

MAD=\frac{\sum |A_1-f_1|}{n}

              Data point          Distance from mean

                                             

1                  7                           7 - 10   =     | -3 |     = 3

2.                10                         10 - 10  =     | 0 |       = 0

3.                13                          13 - 10  =     | 3 |     = 3

4.                4                           4 - 10    =    | -6 |    = 6

5.               12                          12 - 10   =    | 2 |     = 2

6.               21                          21 - 10   =    | 11 |   = 11

7.               10                          10 - 10   =    | 0 |     = 0

8.               3                            3 - 10   =    | -7 |   = 7

                                               

Adding the distance = 3 + 0 + 3 + 6 + 2 + 11 + 0 + 7 = 32

MAD = \frac{32}{8} = 4

MAD of her data set is 4.

Mean Absolute Deviation of this data tells about the variation of 4 miles biked each day by the bicyclists.

6 0
2 years ago
Excel:In cell B13, create a formula using the VLOOKUP function that looks up the value from cell A11 in the range A5:B7, returns
sp2606 [1]

Answer:

=Vlookup'B13' A11' 7'false

Press enter.

Step-by-step explanation:

Vlookup is a technique in excel which enables users to search for criterion values. It is vertical lookup function in excel which return a value from a different column. The formula for Vlookup function is:

=Vlookup'select cell you want to look up in' select cell you want to lookup from' select column index number' true/false.

where true is approximate match and false is exact match.

8 0
2 years ago
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