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I am Lyosha [343]
3 years ago
8

Name the algebraic property demonstrated in the example below:

Mathematics
2 answers:
balu736 [363]3 years ago
8 0

Answer:

Answer: Choice D) Commutative Property of Multiplication

Step-by-step explanation:

Masja [62]3 years ago
7 0
Answer: Choice D) Commutative Property of Multiplication

-------------------------------------

The commutative property of multiplication states that a*b = b*a. In other words, it doesn't matter how you multiply two numbers. The order isn't important. 

For example, 2*3 = 3*2 = 6

So that's why we're able to do x*y = y*x
Furthermore, 
x*y*z = y*x*z
Only the x and y swap places
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timofeeve [1]

Answer:

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The size of a television is given by the length ofthe diagonal of the screen. the ratio of the height to the width of wide flat-
lbvjy [14]
The diagonal of the tv screen is given by:
 d = root ((w) ^ 2 + (h) ^ 2)
 Where,
 w: width
 h: height
 In addition we have the following relationship:
 h / w = 8/15
 Thus,
 For the width:
 d = root ((w) ^ 2 + ((8/15) w) ^ 2)
 For the high:
 d = root (((15/8) h) ^ 2 + (h) ^ 2)
 Answer:
 
The expressions for the width and height of a wide-screen tv in terms of the length of its diagonal are:
 
d = root ((w) ^ 2 + ((8/15) w) ^ 2)
 
d = root (((15/8) h) ^ 2 + (h) ^ 2)
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Cris answered 61 out of 66 questions correctly on a test. what is his test average to the nearest thousand?
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I'm studying a new bacteria that doubles in numbers every 25 minutes. If i start with 50 bacteria, how long until i have 5 milli
dimaraw [331]

Answer:

415.63 minutes

Step-by-step explanation:

Growth can be represented by the equation A=A_0e^{rt}. We can find the rate at which it grows by using t=25 minutes and \frac{A_{0}}{A} =2 or double the amount at that time. The first step we always take is to divide A_0 by A.

[tex]\frac{A_{0}}{A}=e^{rt}\\2=e^{r(25)}

2=e^{(25)r}

To solve for r, we will take the natural log of both sides and use log rules to isolate r.

ln 2=ln e^{(25)r}\\ln 2=25r (ln e)\\\frac{ln2}{25} =r

We know lne=1 so we were able to cancel it out and divide both sides by 25.

We solve with a calculator \frac{ln2}{25} =r\\0.0277=r

We change 0.0277 into a percent by multiplying by 100 to get 2.77% as the rate.

The equation is A=A_0e^{0.0277t} .

We repeat the step above substituting A=5,000,000, A_0=50, and r=0.02777. Then solve for t.

5000000=50e^{0.0277t}\\\frac{5000000}{50} =e^{0.0277t}\\100000=e^{0.0277t}\\ln100000=lne^{0.0277t}\\ln100000=0.02777t(lne)\\\frac{ln100000}{0.0277} =t

t=415.63 minutes

6 0
3 years ago
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