1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zarrin [17]
3 years ago
8

Find the period of the function y= 2/3 cos(4/7^x) + 2

Mathematics
2 answers:
slavikrds [6]3 years ago
8 0

T = 2 π / | 4/7 |

T = 2 π / 4/7

T = 2 π × 7 / 4

T = 7 π / 2

Thus the correct answer is option A .

Svetach [21]3 years ago
3 0

Answer:

The option is A

Step-by-step explanation:

T = 2 π / | 4/7 |

T = 2 π / 4/7

T = 2 π × 7 / 4

T = 7 π / 2

Hope this answer helps you :)

Have a great day

Mark brainliest

You might be interested in
Multiply. (2x2 + 4x - 3)(x2 - 2x + 5)
BigorU [14]
For a moment, let y=x^2-2x+5. Then by the distributive property,

(2x^2+4x-3)p=2x^2p+4xp-3p


Again by the distributive property,

2x^2p=2x^2(x^2-2x+5)=2x^4-4x^3+10x^2

4xp=4x(x^2-2x+5)=4x^3-8x^2+20x

-3p=-3(x^2-2x+5)=-3x^2+6x-15

Taking everything together, we get

(2x^2+4x-3)(x^2-2x+5)=(2x^4-4x^3+10x^2)+(4x^3-8x^2+20x)+(-3x^2+6x-15)
(2x^2+4x-3)(x^2-2x+5)=2x^4-x^2+26x-15
7 0
3 years ago
Read 2 more answers
What is the measure of angle DCR​
PIT_PIT [208]

Answer:

Angle DCF is equal to 125 degrees.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Math help please (80 points)
Inga [223]

Answer:

1. x^4 -x^3 -4x^2 -3

a1 = -7.4

an = an-1 -13.8  (choice 1)

Step-by-step explanation:

f(x) = x^4 -x^2 +9

g(x) = x^3 +3x^2 +12

We are subtracting

f(x) -g(x) =x^4 -x^2 +9 - ( x^3 +3x^2 +12)

Distribute the minus sign

x^4 -x^2 +9 -  x^3 -3x^2 -12

I like to line them up vertically

x^4      -x^2 +9

-  x^3 -3x^2 -12

-------------------------

x^4 -x^3 -4x^2 -3


2.  a1 = -7.4

To find the common difference, take term 2 and subtract term 1

-21.2 - (-7.4)

-21.2 + 7.4

-13.8

an = an-1 -13.8

5 0
3 years ago
Read 2 more answers
Round 81,294 to the nearest ten
sveticcg [70]
The answer to your question is 81,300.
6 0
3 years ago
Read 2 more answers
Emma uses a 250 meter roll of crepe paper to make streamers. How many dekameters of creme paper does emma use?
QveST [7]
1 meter = 0.1 decameters

0.1 * 250 = 25

So she used 25 decameters of creme paper.
8 0
3 years ago
Read 2 more answers
Other questions:
  • QR is tangent to circle P at point Q.
    6·1 answer
  • A computer printer can print 10 pages per minute.
    12·1 answer
  • 30 POINTS!!!!!
    10·1 answer
  • It takes Shonda of an hour to dry one load of laundry in her dryer. How many hours will it take her to dry 7 loads of laundry?
    11·1 answer
  • Help me please!! Slope
    12·1 answer
  • Calculate the time period of a pendulum if it<br>completes 46 oscillations in 20 seconds.​
    7·2 answers
  • Two random samples were drawn from two employers to obtain information about hourly wages. Use the following information and the
    15·1 answer
  • A = 65 – 100n<br> Find a<br> 39
    6·1 answer
  • Divide<br> (-x* + 2x’ +3x– 5x – 2)/(x² – 2x+1)
    11·1 answer
  • How many terms in this question?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!