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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

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5c+16.5=13.5+10c<br> solve for c
lana66690 [7]

Answer:

c = 3/5

Step-by-step explanation:

5c+16.5=13.5+10c

Subtract 5c from both sides:

13.5+5c=16.5

5c=3

c = 3/5

7 0
4 years ago
Read 2 more answers
Match the words in the left-hand column to the appropriate blank in the sentences in the right-hand column. Use each word only o
pshichka [43]
  1. The slowly increasing distance between South America and Africa is due to: a. <u>Seafloor Spreading</u>.
  2. Old Faithful Geyser at Yellowstone National Park in the United States of America acquires its energy from a: b. Hot Spot.
  3. Layered <u>sedimentary rock</u> exposed by erosion can be seen when looking at the Grand Canyon in the United States of America.
  4. Australia is made up of relatively old and thick: d. Continental Crust.
  5. The extremely deep ocean Marianas Trench is a result of: g. Subduction.
  6. <u>Seafloor Crust</u>: found in the Atlantic Ocean between North America and Europe comprises dense and relatively young rock.
  7. The earthquakes that occur in Southern California generally occur above a: f. Fault.

<h3>What is seafloor spreading?</h3>

<u>Seafloor spreading</u> can be defined as a process that involves the formation of new oceanic crust as a result of volcanic activities and an upwelling of molten magma at mid-ocean ridges, as well as a slowly increasing distance (outward movement) from the ridge.

The theory of <u>seafloor spreading</u> was established by Harry Hammond Hess and it can be used to explain in details the slowly increasing distance between South America and Africa which grows from the center.

<h3>What is a hot spot?</h3>

A <u>hot spot</u> refers to an area deep within Earth's mantle or under the rocky outermost layer of Earth, from which heat rises through convection and acquired as heat energy by a landform.

In the United States of America, you will see a layered <u>sedimentary rock</u> that is exposed by erosion when you view the Grand Canyon.

Furthermore, Australia is made up of relatively old and thick <u>continental crust</u>. Also, <u>subduction</u> causes the formation of extremely deep ocean Marianas Trench.

Read more on seafloor spreading here: brainly.com/question/12037536

7 0
2 years ago
What is the inverse of this function?
Andreas93 [3]

Step-by-step explanation:

f(x) = y = -1/2 × sqrt(x + 3), x >= -3

-2y = sqrt(x + 3)

4y² = x + 3

x = 4y² - 3

and now we need to rename x to y and y to x to make it a "normal" function :

y = 4x² - 3

since in the original function x >= -3, this gave us y <=0.

and therefore (remember the x of the inverse function actually stands for the y of the original function) the limit for the inverse function is x <= 0.

so, again, the full answer is

f^-1(x) = 4x² - 3, x <= 0

8 0
2 years ago
40 pounds of sugar are repackaged of 1/16 pounds each. how many packet of sugar are there?
jarptica [38.1K]
We know to each pound of such, there is 16 packets produced per?

So, 16 x 40 = 640.
8 0
3 years ago
What are the coordinates of R' after a dilation by a scale factor of 3, centered at the origin, followed by the translation (x,
emmainna [20.7K]

9514 1404 393

Answer:

  C.  (9, 18)

Step-by-step explanation:

Given R(3, 5), a dilation by a factor of 3 will multiply each coordinate to give ...

  (9, 15)

Then the translation up by 3 will give you the image coordinates ...

  (x, y) ⇒ (x, y+3)

  (9, 15) ⇒ (9, 15 +3) = (9, 18)

The coordinates of R' are (9, 18), matching choice C.

_____

<em>Comment on multiple choice answers</em>

As it often does, here it works to "guess" the answer that has the coordinates that are most-repeated. An x-coordinate of 9 is part of 3 answer choices; a y-coordinate of 18 is the only repeated value in the answer choices. If you were to guess, an appropriate guess would be (9, 18). That happens to be correct in this case.

8 0
3 years ago
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