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ella [17]
3 years ago
13

What is the frequency of the sinusoidal graph?

Mathematics
1 answer:
katen-ka-za [31]3 years ago
7 0

The frequency f is defined as

f = \dfrac{1}{T}

where T is the period, i.e. the time between two maximum/minimum points.

In your example, you can see that a maximum is reached when x = 0, and the next one at x = \pi. This means that the period is

T = \pi-0 = \pi

So, the frequency is

f = \dfrac{1}{\pi}


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Ernest rode his bike 8 1/4 hours on Saturday and 6 1/4 on sunday he rode for a total of 88 1/2 miles for both days how long does
irina [24]
Saturday and Sunday: 8 1/4 hours + 6 1/4 hours = 33/4 + 25/4 = 58/4 = 29/2 hours = 14 1/2 hours

A total of 88 1/2 miles = 177/2 miles for both days.

If you would like to know how long does it take him to ride one mile on his bike, you can calculate this using the following steps:

88 1/2 miles ... 14 1/2 hours
1 mile ... x hours = ?

88 1/2 * x = 1 * 14 1/2
177/2 * x = 29/2      /*2
177 * x = 29            /177
x = 29/177 hours
x = 0.16 hours

Result: It takes him 0.16 hours to ride one mile on his bike.
8 0
3 years ago
2 questions! solve the linear system using substitution. SHOW WORK HELP ME PLEASE
pav-90 [236]
Get y in terms of x then substitute the expression into the other equation.

#7.
y - 2x = -6
y = 2x -6
y gets substituted for 2x - 6
5x - (2x - 6) = 9
5x - 2x + 6 = 9
3x + 6 = 9
3x = 9 - 6
3x = 3
x = 1
use this to find the other one
y - 2(1) = -6
y - 2 = -6
y = 2 - 6
y = -4

#8.
3y + x = 2
x = 2 - 3y
substitute x for 2 - 3y in the second equation
y - (2 - 3y) = -6
y - 2 + 3y = -6
4y - 2 = -6
4y = 2 - 6
4y = -4
y = -1
use this to find the other one
-1 - x = -6
-x = 1 - 6
-x = -5
x = 5
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3 years ago
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Zolol [24]

Answer:

A, b, and c

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Simplify.<br> (4a2b)(-2a3b4c2)
zhenek [66]
Simple,

just simplify your problem....

4a^{2} * -2a^{3} = -8a^{5} &#10;&#10; (remember "multiplying" exponents adds them)

b* b^{4} = b^{5}

which just leaves you c^{2} itself...now add them up....

Making your answer... -8a^{5}  b^{5} c^{2}
5 0
3 years ago
What is 49 x 138 - 37 x 49
likoan [24]
49 x 138 = 6762
37 x 49 =1813
6762 - 1813 = 4949 so your answer is 4949.
7 0
4 years ago
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