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3 years ago

K + L + M equals L + M + K what property does this demonstrate

2 answers:

8 0

K + L + M equals L + M + K demonstrates the commutative property, because you can "flip - flop" the numbers around in that property.

lutik1710 [3]3 years ago

6 0

This demonstrates the commutative property because the commutative property is a property where you can switch up the numbers all you want and still get the same answer. This only works with addition and multiplication.

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Help me please !!!!!!!!!!!!!!

tensa zangetsu [6.8K]

Answer:

$\large\boxed{V=\dfrac{49\pi}{3}\ in^3}\approx51.29\ in^3}$

Step-by-step explanation:

The formula of a volume of a cone:

$V=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have

r = (7 : 2) in = 3.5 in

H = 4 in

Substitute:

$V=\dfrac{1}{3}\pi(3.5)^2(4)=\dfrac{1}{3}\pi(12.25)(4)=\dfrac{49\pi}{3}\ in^3$

$\pi\approx3.14\\\\V\approx\dfrac{(49)(3.14)}{3}\approx51.29\ in^3$

5 0

3 years ago

A multinational firm wants to estimate the average number of hours in a month that theiremployees spend on social media while on

elena55 [62]

Answer:

95% of the population spent between 16.8 hours to 26.2 hours on social media per month

Step-by-step explanation:

subtracting 1 from sample size: 83-1= 82
Note Mean=21.5 and standard deviation=2.5
Subtracting confidence interval from 1 and dividing by 2: (1-0.95)/2=0.025
At α=0.025 and dF=82, the t-distribution table gives 1.984
Divide standard deviation by square root of sample size: 21.5/√83= 2.36
Multiplying answer in step 4 by answer in step 5: 2.36×1.984= 4.68
For lower end: 21.5-4.68= 16.82
for upper end: 21.5+4.68=26.18

7 0

3 years ago

Read 2 more answers

In Volleyball , players serve the ball to the opposing team . If the opposing team fails to hit the ball , the services is calle

choli [55]

To solve, I would write an equation like this: 0.3=x/70 , where x is the number of aces divided by 70 games and 0.3 is his ace average.

0.3=x/70
x=70x0.3
=21

The player has served 21 aces.

Check:
21/70
=0.3

6 0

3 years ago

Which lines must be parallel

Ksivusya [100]

<h2>Answer:</h2><h2>If one angle at one intersection is the same as another angle in the same position in the other intersection ,then the two lines must be parallel.</h2>

7 0

3 years ago

The fee to rent a hall for a wedding is $1450 plus $50 per hour. For how many hours can it be rented forband stay within a budge

inysia [295]

2,100-1,450= 650
650➗50= 13
you can rent 13 hours.

7 0

3 years ago