3 years ago

Which mathematical property is demonstrated?

Mathematics

1 answer:

Artyom0805 [142]3 years ago

4 0

Commutative property of addition

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What is the geometric mean of 7 and 11?

agasfer [191]

Def. of Geometric Mean: the nth root of the product of n numbers

The geometric mean of 7 and 11 = $\sqrt{7*11} =8.775\\$ (approximated)

Hope that helped!

7 0

3 years ago

How are these numbers different 1.5 and 15

mestny [16]

Answer: 1.5 and 15 are different because the first number has a decimal point

Step-by-step explanation: if 15 was divided by 10, it would equal 1.5

4 0

3 years ago

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Trying to find the equation for the pattern 5, 11, 18, 26, 35, 45

tester [92]

Answer:

Step-by-step explanation:

$u_{n+1}=u_n+n+5\\\Longrightarrow\ u_{n+2}=u_{n+1}+(n+1)+5\\u_{n+2}-u_{n+1}=u_{n+1}+n+1+5-u_n-n-5\\u_{n+2}=2u_{n+1}-u_n+1\\u_{n+3}=2u_{n+2}-u_{n+1}+1\\\\u_{n+3}-u_{n+2}=2u_{n+2}-u_{n+1}+1 -2u_{n+1}+u_n-1\\\\u_{n+3}-3u_{n+2}+3u_{n+1}-u_n=0\\\\\\Equation\ caract\' eristique:\\r^3-3r^2+3r-1=0\\(r-1)^3=0\\\\\boxed{u_n=a+b*n+c*t^2}\\\\u_1=5\\u_2=11\\u_3=18\\u_4=a+4*b+16*c=26\\u_5=a+5*b+25*c=35\\u_6=a+6*b+36*c=45\\\\$

a=0

b=9/2

c=1/2

Proof:

n=1 ==> u_1=1/2*(9+1)=5

n=2 ==> u_2=2/2*(9+2)=11

n=3 ==> u_3=3/2*(9+3)=18

n=4 ==> u_=4/2*(9+4)=26

n=5 ==> 5/2*(9+5)=35

n=6 ==> 6/2*(9+6)=45

...

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3 years ago

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Solve the inequality. Graph and check the solution. 28 > 8m - 4

andrew-mc [135]

Answer:

Step-by-step explanation:

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Hoshi walks 10 meters in 3 seconds. 1.What his her walking rate? 2. Suppose she walks this same rate for 50 seconds, how far doe

lilavasa [31]

Her walk rate is 3.33 meter per sec you find this by dividing meters by seconds

Then you multiply this 3.33 by 50 you get 166.5 meters

d=t3.33 is the equation

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3 years ago