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nika2105 [10]
3 years ago
13

Helppp this is a Algebra question

Mathematics
1 answer:
yuradex [85]3 years ago
4 0
12*(7-4)+5/3=19

(*) multiply sign
(/) division sign

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Giant Department Stores, Inc. purchased bedroom curtains from The Linen Company for $6.19. The markup was $4.20. What was the se
Vesna [10]
When purchased for 6.19, after mark up +4.20 = $10.39
4 0
3 years ago
Hyun Woo is riding a ferris wheel. H t H(t) models his height (in m m) above the ground, t t seconds after the ride starts. Here
worty [1.4K]

Answer:

<u></u>

  • <u>53 seconds.</u>

Explanation:

The text and the model are garbled.

This is the question amended:

<em />

<em>Hyun Woo is riding a ferris wheel. H(t) models his height (in m) above the ground, t seconds after the ride starts. Here, t is entered in radians.</em>

<em>H(t) = -10 cos(2π/150 t)+10</em>

<em />

<em>When does Hyun Woo first reach a height of 16 m?</em>

<em />

<h2>Solution</h2>

<em />

When <em>Hyun Woo reaches a height of 16 m</em> the <em>model </em>states:

  • <em>16 = -10 cos(2π/150 t)+10</em>

<em />

Then you must find the lowest positive value of t that is a solution of the equation.

Solve the equation:

  • <em>16 = -10 cos(2π/150 t)+10</em>

  • 10cos(2π/150 t) = - 6

  • cos(2π/150t) = -0.6

  • 2π/150t = arccos(-0.6)

  • 2π/150t = 2.214297

  • t = 52.86s ≈ 53 s ← answer
4 0
4 years ago
I need a lot of help!<br> Is 54.03 + 4.04 greater than 54 + 4.4?
Aliun [14]

Answer:

54+4.4 is greater

Step-by-step explanation:

if u need explanation than please ask

7 0
2 years ago
What are ALL of the factors of 7? Mark ALL that Apply. 7,1,5,3,4,2
lesya692 [45]

Answer:

Just 1 and 7 I believe since it is a prime number :)

3 0
3 years ago
What do ducks short necks help them to do? pls help :/
Kruka [31]

Answer:

In some circumstances these displays may allow the female to observe the performance of males and to evaluate them as potential mates. To elicit displays from a group of males, a female Mallard may swim with her neck outstretched and her head just above the water

Step-by-step explanation:

hope this helps

8 0
3 years ago
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