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charle [14.2K]
3 years ago
14

Why is any number to the zero power equal 1 example for kids?

Mathematics
1 answer:
professor190 [17]3 years ago
4 0
Think of the power series ^2, ^3 etc as defining the characteristics of the <em>line on a graph</em> that the power function draws.

The awful reality is that the logical answer is buried in the axioms of set theory. So instead of having to teach kids axioms and derivations, just draw the lines on a graph as i described.

^0 = a line with zero slope, ^1 = a straight line with a slope of 1, ^2 = an exponential line... etc...

For kids, relating the power series to the shapes of lines on a graph will also help them later on when they learn about functions etc (like y = mx + c). Being able to associate the different powers with actual shapes on a graph will also help them to visualize relationships in physics, should they take that path. It's not the real truth, but a nice correlation with it's own merits.

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We have x = 7 so now solve for y by replacing x with 7 in this equation 2x + y = 20
Ivahew [28]

Answer:

y=6

Step-by-step explanation:

2(7)=14.

subtract both sides by 14.

y=6

7 0
3 years ago
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PLEASE HELP ASAP. RIGHT ANSWER WILL GET BRAINLIEST
dimulka [17.4K]
Given
P(1,-3); P'(-3,1)
Q(3,-2);Q'(-2,3)
R(3,-3);R'(-3,3)
S(2,-4);S'(-4,2)

By observing the relationship between P and P', Q and Q',.... we note that
(x,y)->(y,x)  which corresponds to a single reflection about the line y=x.
Alternatively, the same result may be obtained by first reflecting about the x-axis, then a positive (clockwise) rotation of 90 degrees, as follows:
Sx(x,y)->(x,-y)    [ reflection about x-axis ]
R90(x,y)->(-y,x)    [ positive rotation of 90 degrees ]
combined or composite transformation
R90. Sx (x,y)-> R90(x,-y) -> (y,x)

Similarly similar composite transformation may be obtained by a reflection about the y-axis, followed by a rotation of -90 (or 270) degrees, as follows:
Sy(x,y)->(-x,y)
R270(x,y)->(y,-x)
=>
R270.Sy(x,y)->R270(-x,y)->(y,x)

So in summary, three ways have been presented to make the required transformation, two of which are composite transformations (sequence).
4 0
3 years ago
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How many feet are in 0.6 miles
juin [17]

Answer:

3168 feet

Step-by-step explanation:

Do not know how to word explanation.

8 0
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Need help with this please ​
antoniya [11.8K]

Answer:

These are kinda tuff  Mandi,  sooo remember what's below

Step-by-step explanation:

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

now fine one of the above functions that has the 3 things you are working with.   2 knowns, and 1 unknown

also we know that the angle at the right tip of the triangle is 90-59= 31°

we know that b/c the inside angles of a triangle always add to 180 and there is already a 90° so we only have 80 left, which the 59° is part of, so 31 is the other, now put that info into one of the above formulas

x= adjacent side

and we know the angle and hypotenuse side.    find the formula with those parts.  I see Cos  has those or CAH... to help remember how those fit

Cos(31) = x / 17

17*cos(31) = x

14.5718 = x

there is your answer,  understand how I got it? :)

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3 years ago
Find the mean and medium of wieght people
natulia [17]

Answer:

Mean= 80

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Mode= 61

Step-by-step explanation:

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