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Basile [38]
3 years ago
13

Which transformations are needed to change the parent cosine function to y= 3cos(10(x-pi) )?

Mathematics
2 answers:
denpristay [2]3 years ago
6 0
<span>The parent cosine function can be transformed and translated. So, from the basic function cos(x) we can obtain function acos(bx+c). In our case, a=3- amplitude, b=10- the period change and c=-pi- the phase shift. So, the parent cosine function is mutiplied with 3 (which gives the amplitude of the function, 3*0.5=1.5). The period of the function is changed, and is 2pi/b=2pi/10=pi/5 and the cos(x) is phase shifted for c/b=-pi/10.</span>
galina1969 [7]3 years ago
3 0

Answer:

I think it´s B

Step-by-step explanation:

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alex41 [277]
This is the concept of financial mathematics, the simple interest rate is given by:
S.I.=(PRT)/100
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P=principle=$2500
R=rate=5.5%
T=time=1 year
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S.I.=(5.5*2500.1)/100
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3 years ago
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GarryVolchara [31]

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2 years ago
How do I write 125% in simplest form
Lera25 [3.4K]

Answer:

The answer is 5/4 in fraction form and 1.25 decimal form


7 0
3 years ago
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evablogger [386]
Alright, so you have the basic formula- good.
You have the A value (400), the interest rate r (7.5% -> .075 in decimal), and the final P value (8500). So, we only need to solve for t.

8500 = (400)(1+.075)^t
/400      /400
21.25 = 1.075^t
logarithms are the inverse of exponents, basically, if you have an example like
y = b^x, then a logarithm inverts it, logy(baseb)=x
Makes sense if you consider a power of ten.
1000 = 10^3
if you put logbase10(1000), you'll get 3.
Anyways, though, to solve the problem make a log with a base of 1.075 in your calculator
log21.25(base 1.075) = t
also, because of rules of change of base (might want to look this up to clarify), you can write this as log(21.25)/log(1.075) = t
Thus, t is 42.26118551.
Rounded to hundredths, t=42.26
6 0
3 years ago
Write a formula for S in terms of r.
bulgar [2K]

Answer:

Step-by-step explanation:

S=θ/360*2πr

S=0.020943951r

6 0
3 years ago
Read 2 more answers
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