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slava [35]
4 years ago
14

The water level at a pier is modeled by the function y= 2.5 cos(2pi/12.5) +12, where y represents the water level measured in me

ters, and x represents the number of hours since the last high tide. After how many hours is the water first expected to reach a depth of 12 meters? Round to the nearest tenth of an hour.
ANSWER CHOICES
1.6 hours
3.1 hours
14.4 hours
19.6 hours
Mathematics
1 answer:
ivolga24 [154]4 years ago
3 0

Answer: 3.1 hours

Step-by-step explanation: Just took the quiz on edg.

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Answer the other following question.
pychu [463]

Given:

L = W - 4

P = 2L + 2W

We can substitute 2L for 2(W - 4) = 2W - 8

So:

2W - 8 + 2W = P

P = 4W - 8

Answer is 4. 4W-8

5 0
4 years ago
I just need to make sure I got the correct answer. If it is wrong can you please help me get the correct answer. Step by step pl
Luda [366]

Answer:

Step-by-step explanation:

The easiest way for me to answer your question is just to do it. If we agree, all well and good. If we don't, then you have the way I did it.

A = (4.75*x + 125)/10000

A = (4.75*10000 + 125) / 10000

A = (47500 + 125) / 10000

A = 47625/10000

A = 4.76

So it looks like we both think it is A.

The question is deceptive because the 125 is really quite small compared to 47500.

3 0
3 years ago
Read 2 more answers
Frank has a 2-digit number on his baseball uniform. The number is a multiple of 10 and has 3 for one of its factors . What three
White raven [17]

Frank could have 30, 60 , 90 on his uniform

<em><u>Solution:</u></em>

Given that, Frank has a 2-digit number on his baseball uniform

The number is a multiple of 10 and has 3 for one of its factors

To find: Three numbers that Frank have on his uniform

Given that,

It's a multiple 10 and has 3 for one of its factors and its a 2-digit number

Let us first find the multiples of 10

<em><u>The two digit multiples of 10 are:</u></em>

{10, 20, 30, 40, 50, 60, 70, 80, 90}

From the above list, find the numbers which has 3 as one of its factors

Which means, find the numbers which are divisible by 3

The possible numbers = 30, 60, 90

Thus frank could have 30, 60 , 90 on his uniform

3 0
3 years ago
Web Consultants, Inc., pays Alice Rose an annual salary of $56,800. Today, Alice’s boss informs her that she will receive a $7,3
pogonyaev

Answer: 13%

Step-by-step explanation:

To answer this question we can simply take her raised salary by her old salary...

(Put this into a calculator) 7300/56800=0.13

$7300 is 13% of her old salary

3 0
3 years ago
Two trains leave the station at the same time, one heading west and the other east. the westbound train travels at 80 miles per
Volgvan
80+70=150
270/150=1.8 hours before the two trains are 270 miles apart
☺☺☺☺
4 0
3 years ago
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