Explain in your own words why (x y)2 ≠ x2 y2. Provide a numerical example to illustrate.

Answers

Answer 1

Answer: I believe I misread the question but I don't know how to delete this. Sorry!

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How many hours between 8:15 to 12:45 ?

Answers

4.5
an hour to 9:15
one to 10
one to 11
one to 12
and .5 to 1215 to 1245

Subtract:

12h 45' -
08h 15'
-----------
04h 30'

Using complete sentences, explain the key features of the graph of the sine function.

Answers

The trigonometric functions have features that are worthy of note. Among these features are the period and amplitude. The graph of f(x)=sin x repeats itself along the x-axis by a certain distance. This distance is called the period. For the sine function, the period is 2pi radians. It can also be observed that the graph goes up and then down by a certain distance. This distance is called the amplitude. For the curve of f(x)=sin x, the amplitude is 1.

Two numbers have a difference of 0.7 and a sum of 1. what are the numbers?

Answers

In order to determine the value of the numbers, we can set up algebraic equations to solve. For this case, we need to set up two equations since we have two unknown numbers. We do as follows:
let x = first number and y = second number
From the problem statement, we set up equations.
Equation 1 - the numbers have a difference of 0.7
x - y = 0.7
Equation 2 - the numbers have a sum of 1
x + y = 1
Solving for x and y via substitution method,
x - y = 0.7
(1-y) - y = 0.7
1 - 2y = 0.7
-2y = 0.7 - 1 = -0.3
y = 0.15 or 3/20
x - 0.15 = 0.7
x = 0.85 or 17/20
Thus, the two numbers are 0.15 and 0.85.

In 2006, there were 2,573 computer viruses and other security incident. During the next 7 years, the number of incidents increased by about 92% each year.

Answers

Answer:

Total number of virus after 7yrs= 247484.7 virus

Step-by-step explanation:

Total number of virus after 7yrs = 2573(1+0.92)⁷ = 247484.7 virus

The home that you want to purchase requires that you pay 2.5 points towards a $175,210 loan. Determine the cost of the home after the points have been applied.

Answers

Mortgage points mean a certain percentage towards a current loan. Since you were required to pay an additional 2.5 points, that would mean paying an extra 2.5% of the current load. To show this:

175210 * 2.5% = 4380.25
175210 + 4380.25 = 179590.25

Therefore, the new cost of the home would be $179,590.25

Answer:

A. 179,590.25

Step-by-step explanation:

on edge2020

Both the leftmost digit and the rightmost digit of a four-digit numberN are equal to 1. When these digits are removed, the two-digit number
thus obtained is N ÷ 21. Find N.

Answers

$N=1000w+100x+10y+z\nw=z=1\nx,y\in\{0,1,2,\ldots,7,8,9\}\n10x+y=(N)/(21)\n10x+y=(1000w+100x+10y+z)/(21)\n10x+y=(1000+100x+10y+1)/(21)\n10x+y=(100x+10y+1001)/(21)\n210x+21y=100x+10y+1001\n110x+11y-1001=0\n10x+y-91=0\ny=-10x+91\n\n\hbox{The above equation meets the condition }x,y\in\{0,1,2,\ldots,7,8,9\}\n\hbox{only for } x=9:\ny=-10\cdot9+91\ny=-90+91\ny=1\n\n\hbox{Therefore:}\nN=1000\cdot1+100\cdot9+10\cdot1+1\nN=1000+900+10+1\nN=\boxed{1911}$

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