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____ [38]
3 years ago
11

Need help Please help me

Mathematics
1 answer:
NARA [144]3 years ago
4 0
For number 3 you are multiplying by 8 so the next one is 20480 and 163840

for number 4 you are dividing by 2, so the next one is 50 and 25 
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HELPPPP!!!<br> Select the correct answer.<br> Which function is an even function?
jonny [76]

Answer:

C.

Step-by-step explanation:

p(x)=sin(x) is an odd function since sin(-x)=-sin(x).

q(x)=cos(x) is an even function since cos(-x)=cos(x).

r(x)=tan(x) is an odd function since tan(-x)=-tan(x).

s(x)=csc(x) is an odd function since csc(-x)=-csc(x).

So the only contender seems to be C.

Let's check.  To check we have to plug in (-x) in place of (x) and see if we get the same function back since we are looking for an even function.

f(x)=\cos(\frac{5\pi}{4}x)

Replace (x) with (-x):

f(-x)=\cos(\frac{5\pi}{4}(-x)

f(-x)=\cos(\frac{-5\pi}{4}x)

f(x)=\cos(\frac{5\pi}{4}x) since cosine is even; that is cos(-u)=cos(u) where u in this case is \frac{5\pi}{4}x.

So f is even.

7 0
4 years ago
Which number line can you use to simplify 2 - (-8)?
tigry1 [53]

i would say c is the best answer or the 3rd one


3 0
3 years ago
How can you find the slope of the line that passes through the points (0,0) and (2,4)
Nata [24]

Step-by-step explanation:

Graph it and find the rise over run. which then gives you your slope

6 0
3 years ago
A rectangular playground is to be fenced off and divided in two by another fence parallel to one side of the playground. Seven h
Arisa [49]

Answer:

Step-by-step explanation:

Suppose the dimensions of the playground are x and y.

The total amount of the fence used is given and it is 780 ft. In terms of x and y this would be 3x+2y=780 (we add 3x because we want it to be cut in the middle). Therefore,  y= 780/2-3/2x. Now, the total area (A )to be fenced is

A=x*y= x*(390-3/2x)=-3/2 x^2+390x

Calculating the derivative of A and setting it equals to 0 to find the maximum

A'= -3x+390=0

This yields x=130.

Therefore y=780/2-3/2*130=195

Thus, the maximum area is 130*195=25,350ft^2

8 0
3 years ago
6+-3= <br> Please help me
Brums [2.3K]

Answer:

3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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