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LekaFEV [45]
3 years ago
9

Which graph represents the function y = cos(4x)? Answer is graph B

Mathematics
2 answers:
VARVARA [1.3K]3 years ago
7 0

Answer:

Step-by-step explanation:

Let the equation of the cosine function is,

y = Acos(Bx)

From the graph attached,

A = Amplitude = \frac{1-(-1)}{2}

   = 1

B = \frac{2\pi}{\text{Period}}

B = \frac{2\pi}{\frac{\pi}{2}-0}

B = \frac{4\pi}{\pi}

B = 4

Therefore, equation of the cosine wave given in the graph will be,

y = 1.Cos(4x)

y = Cos(4x)

nirvana33 [79]3 years ago
7 0

Answer:

B

Step-by-step explanation:

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2 years ago
the area of a square garden is 267 ft^2 what is the side length of each side? round your answer to the nearest hundredth place.
aksik [14]

Answer:

  • Side Length=16.34 ft
  • No

Step-by-step explanation:

The area of the square garden=267$ ft^2

Area of a Square of Side length s =s^2

Therefore:

s^2=267$ ft^2\\$Take the square root of both sides\\s=\sqrt{267} \\$Side Lenght, s=16.34 ft (to the nearest hundredth place)

<u>Perimeter</u>

Perimeter of a Square of Side length s=4s

Therefore, the perimeter of the garden =4*16.34=65.36 ft

Since 65 ft < 65.36 ft

Therefore, if you had 65 ft of fencing, it will not be enough to go around and cover the garden.

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3 years ago
Which triangle is NOT similar to the other three?
Liono4ka [1.6K]

it would be triangle D

4 0
3 years ago
Read 2 more answers
CAN SOMEONE HELP ME PLSSS
Dmitry_Shevchenko [17]

Answer:

210

Step-by-step explanation:

1.(Subtract both sides) we know that 14 - 14 = 0 But now you turn ZERO Into an X because anytime you subtract and get a ZERO IT WOULD BE X SO NOW YOU WILL TRY TO FIND/SOLVE X' I HOPE THIS HELPED/HELPS! (: I GOT 15 AS THE ANSWER BY SUBTRACTING 224-14 AND THEN I GOT 210 AND DIVIDED BY 14. BUT SINCE THERE IS NO X=15 ,It would be 210 because of subtraction.

5 0
3 years ago
Pls help <br> its was on khan academy<br> i will mark u brainiest!!!
Phantasy [73]

Answer:

14 units

Step-by-step explanation:

Solution:-

A(5,1)B(7,1)

\sqrt{(x_{1}-x_{2} ) ^{2}(y_{2} -y_{1}x^{2}    }

AB=\sqrt{(7-5)^{2} +(1-1)^{2} }

= \sqrt{2^{2} } =2

BC=\sqrt{7-7^{2}+(6-1)^{2}  }

=\sqrt{5^{2} } =5

perimeter=2(AB)+2(BC)

= 2(2)+2(5)\\

= 4+10= 14

-----------

hope it helps...

have a great day!!

6 0
3 years ago
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