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iren [92.7K]
3 years ago
6

What is the MAD of the following numbers? 2, 3, 5, 7, 8, 8, 9

Mathematics
2 answers:
enyata [817]3 years ago
8 0
The MAD is <span>2.2857142857143, so about 2</span>
Free_Kalibri [48]3 years ago
8 0
To find the MAD, you have to find the mean, or average, of the numbers first.
2+3+5+7+8+8+9=42
42/7=6

Then, you have to find the difference between the average and each data value (in absolute value)
6-2=4
6-3=3
6-5=1
7-6=1
8-6=2
8-6=2
9-6=3

Then, you add up all the differences.
4+3+1+1+2+2+3=16

And then find the mean of that number.
16/7=2 2/7
Or in decimals, this is about 2.285714
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A water tank is box shaped with a square base of side length 5 ft. The tank is fed by a pipe above and drains from its base. In
adell [148]

Answer:

dy/dt = - (1/5) ft/s = - 0.2 ft/s

Step-by-step explanation:

Given

L = 5 ft

Qin = 25 ft³/s

Qout = 30 ft³/s

h = 10 ft

dy/dt = ?

We can apply the relation

ΔQ = Qint - Qout = 25 ft³/s - 30 ft³/s

⇒ ΔQ = - 5 ft³/s

Then we use the formula

Q = v*A

where Q = ΔQ, A = L²  is the area of square base and v = dy/dt  is the rate of change in the depth of the solution in the tank

⇒ ΔQ = (dy/dt)*L²

⇒ dy/dt = ΔQ/L²

⇒ dy/dt = (- 5 ft³/s)/(5 ft)²

⇒ dy/dt = - (1/5) ft/s = - 0.2 ft/s

6 0
3 years ago
Which expression can be used to check the answer to 56 divided by (negative 14) = n?
allochka39001 [22]
D because n= -14 and were dividing 56
3 0
3 years ago
A=72 and c=75 solve b
Andrei [34K]

Answer:

b = 3 or -3 i suppose

Step-by-step explanation:

3 0
3 years ago
What is the value of n in the equation 2.3 × 10 9power = (1 × 10 3power)(2.3 × 10n)
Amanda [17]
Hello,

2.3 x 10^9 = ( 1 x 10^3) ( 2.3 x 10^n) 

Solution:

Take the logarithm of both sides of the equation to remove the variable from the exponent. 

n=6


Faith xoxo
7 0
2 years ago
Write the ratio 10:18 as a fraction in simplest form.
Ira Lisetskai [31]

Answer:

5/9

Step-by-step explanation:

Find the GCD (or HCF) of numerator and denominator. GCD of 10 and 18 is 2.

10 ÷ 218 ÷ 2.

Reduced fraction: 59. Therefore, 10/18 simplified to lowest terms is 5/9.

6 0
2 years ago
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