please help me with this question! thank you :)

Answer: 3.1 hours

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

  Water will reach a depth of 12 meters after 3.1 hours approximately.

   Function representing the level of water by 'y' and number of hours by 'x' is,

For y = 12 meters, (Substitute the value of y)

[tex]12=2.5\text{cos}(\frac{2\pi x}{12.5})+12[/tex]

[tex]12-12=2.5\text{cos}(\frac{2\pi x}{12.5})[/tex]

[tex]\text{cos}(\frac{2\pi x}{12.5})=0[/tex]

[tex]\frac{2\pi x}{12.5}=\frac{\pi }{2}[/tex]   (Since, [tex]\text{cos}(\frac{\pi }{2})=0[/tex])

[tex]\frac{\pi x}{12.5}=\frac{\pi }{4}[/tex]

[tex]x=\frac{\pi }{4}\times \frac{12.5}{\pi}[/tex]

[tex]x=3.125[/tex]

[tex]x\approx3.1[/tex] hours

    Therefore, water will reach a depth of 12 meters after 3.1 hours approximately.

Learn more,

https://brainly.com/question/6997514

Answer:

0.345

Step-by-step explanation:

Use binomial probability:

P = nCr pʳ qⁿ⁻ʳ

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1−p).

n = 5, r = 2, p = 0.41, and q = 0.59.

P = ₅C₂ (0.41)² (0.59)⁵⁻²

P = 0.345

Answer:

Substituting x with 9

9-11

= -2

Yes, it is a solution.

Answer:

Step-by-step explanation:

Slope of the given line = -7

parallel: slope = -7

perpendiculr: slope = -1/(-7) = 1/7

100 - 3(3 x 7 - 4 x 5)

Simplify

97(21 - 20)  

Simplify

97(1)

Now, multiply.

97 x 1 = 97

So the answer to the equation above, is 97.

Answer:

2 1/8

Step-by-step explanation:

Hope this helps!!

Answer: 2.125

Step-by-step explanation: 3.4 x 5/8 = 2.125

Answer:  y = 12x - 41

Step-by-step explanation:

The choices are not given, but you can figure this out.

Slope intercept form is y = mx + b

Substitute the y and x-values into the equation to calculate b, the y-intercept.

19 = 12(5) + b

19 = 60 + b

-60 + 19 =b

-41 = b

Write the equation with y and x, include the given slope and the calculated y-intercept:

y = 12x + 41

Answer:

they all have 52 left altogether

Step-by-step explanation:

they all have 2 rolls with 12 so that means they all have 24 if josiah hands out half of his tickets he would have 12 tickets left

If shawnda hands out 1 fourth of her tickets she will have 18 tickets

24 + 12 + 18 =54

Answer:

i not understand this question plase ask full question

Answer:

9 bags of trail mix

Step-by-step explanation:

Answer:

brother gets 6 cards

sister gets 3 cards

he gets 15 cards

Step-by-step explanation:

this can be rewritten as

2x + x + 5x = 24

combine like terms

8x = 24

divide both sides by 8

x = 24/8

x = 3

now, multiply x by each part of the ratio.

his brother = 2 * 3 = 6

his sister = 1 * 3 = 3

himself = 5 * 3 = 15

Answer:

Amy by 4 feet

Step-by-step explanation:

Look above for explanation

After 35 years the simple interest is $600 while the compound interest is $860, while after 45 years the simple interest is $700 while the compound interest is $1160

Interest is the amount of money made from investing a particular amount of time over a certain period of time. Interest can either be simple or compound.

From the graph given below:

After 35 years the simple interest is $600 while the compound interest is $860, while after 45 years the simple interest is $700 while the compound interest is $1160

Find out more on interest at: https://brainly.com/question/25545513

Answer:

4/3 is the fraction / the denomonator would then be 3

Step-by-step explanation:

4 shaded on the top and 3 shaded on the bottom. The numerator is on the top and the denomonator is on the bottom.

your answer is 64cm

thats it

Step-by-step explanation:

You will put the y-intercept at (0,4) and the slope will be -1

Here are some points on the line you can graph: (0,4) (1,3) (2,2) etc.

=> 3 people share 7 brownies

=> 7 ÷ 3

=> 2.3333333

=> 2.3

Therefore, each person takes 2 1/3

Answer:

2 ⅓  

Step-by-step explanation:

division is the same as a fraction

the dividend is the numerator and the divisor is the denominator

7÷3 is the same as 7/3

change 7/3 into a mixed number which is 2 ⅓  

Answer:

It's a straight line

Step-by-step explanation:

The line has a slope of 3/5 and a y-axis crossing of -3

Answer:

D, B, C

Step-by-step explanation:

Because even though this is not a right triangle, it's super close. Therefore we can call side DC the SL, meaning angle C is larger. Angle D is largest, then B, then C.

Answer:

4/15

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

If you add 2/5 of 30 (12) to 1/6 of 30 (5) you get 16. You then subtract 30-16! I hope this helps, and have a great day!

Answer:

6 1/2 hours

Step-by-step explanation:

3 1/2 + 1/2 + 2 1/2

4 + 2 1/2

6 1/2

First add the 3 1/2 and the 1/2 together to get 4. Then you add the 2 1/2 to the 4 to get 6 1/2. :)

Hope this helped!

Have an amazing day!!

PLEASE RATE!!

Answer: 12hrs 30mins

Step-by-step explanation: 3hrs 30mins + 3hrs + 6hrs = 12hrs 30mins

Hope that helps!

Answer:

6. A

7. A

8. A

9. C.

10. A.

11. B.

12. B.

13. C.

14. A.

15. D.

Step-by-step explanation:

6. An algebraic equation is a mathematical sentence with an equal sign.

7. 3n + 6 = 66

8.  Let n = Mayah's sister's age

    let m = Mayah's age

    let b = Mayah's brother's age

    m = n - 2

    b = n + 4

   m + b + n = 26

⇒ n - 2 + n + 4 + n = 26

⇒ 3n + 2 = 26

9. 2n - 5

10. 2b - 6 = 16

11. n + 5 = 12  

⇒  n = 7

12. c + 18 = 29  

⇒  c = 29 - 18 = 11

13. h = 8 · 5 = 8 × 5 = 40

14. 453 + 364 + n = 1000  

⇒  n = 1000 - 453 - 364

⇒  n = 183

15. 3n + 11 = 35  

⇒  3n = 35 - 11  

⇒ n = 24 ÷ 3

⇒ n = 8

Answer:

you probably already have it. the answer is : A,C,E

Step-by-step explanation:

Trust me-

Answer:

see i do not know 1st so i am not answer for it

Step-by-step explanation:

2nd) let 1st number be x

and second number be y

so x+y>11 or x+y<11 or x+y=11

this three can be i am not sure about this so just verify from any other source too

3rd) the ans is 500 upon(divided) by 4=125

so 125 multiply by 3 is 375

the correct ans is 375

Answer:

If you are asking for the median, it's 9.

explanation:

Find the middle number and round it up. That is how to find median.

Answer:

image is attached (shaded area is where x could be)

Step-by-step explanation:

[tex]6x < 90[/tex]

divide both sides by 6

[tex]x < 15[/tex]

this means x is strictly less than 15

Answer:

4/9

Step-by-step explanation:

find common denominator which is 9

1/9 + 3/9 (I change the numerator because since we multiplied the bottom you do the top)

now add

1/9 + 3/9 = 4/9

hope that helps and makes since

Answer: 4/9

Step-by-step explanation: 1/9 + 1/3(which is 3/9) = 4/9.

Answer:

$1.50

Step-by-step explanation:

Answer:

x = $1.50; The cost per pound of tomatoes is $1.50

Step-by-step explanation:

We can the cross method.

4 pounds = $6

1 pound   = x

4x = 6*1

4x=6

4x/4 = 6/4

x= 1 1/2 or $1.50

x = $1.50

The cost per pound of tomatoes is $1.50

Hope this helps!