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ch4aika [34]
3 years ago
13

I need help please Right now if you could!!

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
5 0

Answer:

Step-by-step explanation:

Step 2:       2.8z - 3.4z - 7.2 + 6.6

Step 3:       -0.6z - 0.6

-7 (-15w + 21) + 3(18 - 27w)

step 1: 105w - 147 + 54 - 81w

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Select ALL the correct answers.<br> Which of the following functions are odd? PLEASE HELP!!!! ASAP
soldier1979 [14.2K]
Odd functions are those that satisfy the condition
f(-x)=-f(x)
For example, check if x^3 is odd =>
f(x)=x^3
f(-x) = (-x)^3
-f(x)=-x^3
Since (-x)^3=-x^3, we see that f(x)=x^3 is an odd function.
In fact, polynomials which contain odd-powered terms only are odd.  (constant is even)
As an exercise, you can verify that sin(x) is odd, cos(x) is even.

On graphs, odd functions are those that resemble a 180 degree rotation.
Check with graphs of above examples.

So we identify the first graph (f(x)=-x^3) is odd (we can identify a 180 degree rotation)

Odd functions have a property that the sum of individually odd functions is 
also odd.   For example, x+x^3-6x^5 is odd, so is x+sin(x).

For the next graph, f(x)=|x+2| is not odd (nor even) because if we rotate one part of the graph, it does not coincide with another part of the graph, so it is not odd.

For the last graph, f(x)=3cos(x), it is not odd, again because if we rotate about the origin by 180 degrees, we get a different graph.  However, it is an even function because it is symmetrical about the y-axis.

5 0
3 years ago
Read 2 more answers
1.) What is the average rate of change between x=2 and x=5?
Nimfa-mama [501]

Answer:

Rate of change = 150%

Rate of change = 100%

Rate of change = 100%

Step-by-step explanation:

Find:

Rate of change

x=2 and x=5

x=3 and x=6

x=2 and x=4

Rate of change = [(5-2)/2]100

Rate of change = 150%

Rate of change = [(6-3)/3]100

Rate of change = 100%

Rate of change = [(4-2)/2]100

Rate of change = 100%

4 0
3 years ago
Read 2 more answers
What is 3 hours 35 minutes + 2 hours 45 minutes
givi [52]
The answer  to this question is 380 minutes 
4 0
3 years ago
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The 21st, 37th and 56th term of an A.P. are consecutive terms of a G.P. Find the common ratio of the G.P.​
mash [69]

just use what you know about this stuff

(a+36d)/(a+20d) = (a+55d)/(a+36d)

(a+36d)^2 = (a+55d)(a+20d)

a^2+72ad+1296d^2 = a^2+75ad+1100d^2

3ad = 196d^2

3a = 196d

That is, for any value of n,

a=196n

d=3n

So, there is no unique solution.

If n=1, then a=196 and d=3. The terms are

196+20*3 = 256

196+36*3 = 304

196+55*3 = 361

304/256 = 361/304

You can easily verify that it works for any value of n.

6 0
3 years ago
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How many times 9 go into 20
Genrish500 [490]
20:9=\dfrac{20}{9}=\dfrac{18+2}{9}=\dfrac{18}{9}+\dfrac{2}{9}=2\dfrac{2}{9}

Answer: 2 times.
8 0
3 years ago
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