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Gre4nikov [31]
2 years ago
15

Markups The depth of water in a pond increases by 3% after a heavy rain. If the average depth of the water was 8.3 feet, what is

the new depth?​
Mathematics
1 answer:
jek_recluse [69]2 years ago
6 0

Answer: 8.55 feet

Step-by-step explanation:

We should equal the average depth to 1, so if it raises 3%, it raises 0.03. Simply add the original (1) plus what it rose (0.03) and multiply the original by that, so 8.3 × 1.03 = new depth. The result is 8.549 feets.

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Use cylindrical coordinates. Find the volume of the solid that lies within both the cylinder x2 + y2 = 25 and the sphere x2 + y2
Inessa05 [86]

Answer:

Step-by-step explanation:

we are asked to find the volume of solid that lies within both the cylinder

x^2 + y^2 = 25

and

the spherex^2 + y^2 + z^2 = 49.

Conversion from rectangular to cylindrical is

x=rcost\\y = rsint\\z=z

|J| =r

In cylindrical coordinates the volume is bounded by the cylinder r=5 and

r^2+z^2 =49

Hence we can write volume as

\int \int \int dxdydz\\=\\\int _0^5 \int_0^{2\pi} \int_{-\sqrt{49-r^2} } ^{\sqrt{49-r^2} rdzdtdr\\= 2\pi \int _0^5 (2\sqrt{49-r^2} rdr\\=4\pi (-(49-r^2) (2/3)\\= \frac{4\pi}{3} (343-48\sqrt{6} )

6 0
3 years ago
Help me due today ASAP
Allisa [31]

Answer:

He walked for 70 minutes

Step-by-step explanation:

Find the unit rate by dividing 20/4 to get 5. Then you multiply 14x5 and get 70.

4 0
2 years ago
If i have 71% as a grade and i get 100% on a test and 100% on another test,what will be my final grade?
Vlada [557]

\frac{71 + 100 + 100}{3}
5 0
3 years ago
Please help! I'm not sure on what I do.​
Alisiya [41]

Answer:

slope= 6.25

Step-by-step explanation:

the slope represents the meters he travels per second

5 0
3 years ago
Read 2 more answers
Can anybody help with this?
Ainat [17]

Answer:

a. 3

b. [5,6]

c.Median=\frac{n}{2}

d.Game theory to predict future outcomes based on past results.

Step-by-step explanation:

a. Median is defined as the middlemost data point in a data set of data points arranged in a ranking order.

-Arranging our data points in Ranking order:

                 0,0,1,1,2,2,3,5,5,5,6,8,8

-Our set has 13 entries. The 7th term is the median Value.

#Hence, the median value of our data set is 3

b. Increasing the median value by 2. And let x and y be the two new scores

-From a above, median is 3:

M_n=M_{old}+2=3+2\\\\=5

-The new median value is 5. Adding two data points, makes the 8Th term the median value.

-Given that values of 5 was originally the 8th term, For the median value to be 5,both x and y have to have a value of 5, or one must be a 5 and the next a higher value:

-Hence, [5,6], 5,5] are both possible pairs of x and y

c. From the definition of median in a above,

#If the data points are an odd number of entries, then the median value is (n/2)+1, hence a whole number.

Median=\frac{n}{2}+1

#If the data points are an odd number of entries, then the median value is (n/2), hence a decimal number e.g 2.5:

Median=\frac{n}{2}

d. Using game theory, real-world scenarios for such situations asruns in baseball games can be predicted from past outcomes.

-As such, we can predict that the next two games are likely to be in the range of the first 13 scores.

5 0
3 years ago
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