A rock is thrown into a pool 72 inches deep. The rock sinks at a rate of 4 inches per
second (s). The rock's height (h) above the bottom of the pool is given by the
equation: h = 72 – 4s. After how many seconds will the rock be half way to the
bottom?

Answers

Answer 1

Half of 72 is 36. If you divided 36 by 4, you would get 9. So, s = 9 and means that it takes 9 seconds for the rock to be sunk half way.


Related Questions

WILl GIVE BRAINLIEST IF YOU SHOW THE STEPS!!!

Answers

Answer:

[tex]\frac{9x}{y^3}[/tex]

Step-by-step explanation:

[tex]\frac{\left(3x^2y^4\right)^3}{3x^5y^{15}}[/tex]

[tex](3x^2y^4)^3 : 3^3x^6y^1^2[/tex]

= [tex]\frac{3^3x^6y^{12}}{3x^5y^{15}}[/tex]

[tex]\frac{3^{3} }{2} = 3^{2}[/tex]

= [tex]\frac{3^2x^6y^{12}}{x^5y^{15}}[/tex]

= [tex]\frac{x^{6} }{x^{5} } : x[/tex]

= [tex]\frac{3^2xy^{12}}{y^{15}}[/tex]

=  [tex]\frac{y^{12} }{y^{15} } : \frac{1}{3{y} }[/tex]

= [tex]\frac{3^2x}{y^3}[/tex]

[tex]3^2=9[/tex]

= [tex]\frac{9x}{y^3}[/tex]

Find the surface area of a cylinder with radius 8m and height 5 m

Answers

Answer:

A≈653.45

Step-by-step explanation:

Solution

A=2πrh+2πr2=2·π·8·5+2·π·82≈653.45127

seven more than three-fourths of a number is no less than 31

Answers

Answer: 7+3/4x >= 31

Step-by-step explanation: 7 more = +7

three - fourths of a number = 3/4 x

no less than = >= (more than or equal to sign)

A person at rest typically takes 720 breaths in an hour.At this rate,how many breaths does a person take in 15 minutes?

Answers

Answer:

180

Step-by-step explanation:

help pls please again and again anf again​

Answers

2^5.

2*2*2*2*2 = 32.

The equation simplified is 32 or 2^5.

330 is what percent of 750?

Answers

[tex] \frac{330}{750} \times 100 \\ = 44\%[/tex]

what is the solution to the system of equations graphed below? y=-x+3 y=x-3

Answers

Answer:

x-3=-x+3

2x=6

x=3 y=0

the solution is the intersection of those two lines!

which ratios make up a proportion​

Answers

Answer:

2nd option

Step-by-step explanation:

The ratios on both sides must be equal

[tex]\frac{15}{6}[/tex] ( divide numerator/ denominator by 3 )

= [tex]\frac{5}{2}[/tex] ≠ [tex]\frac{3}{2}[/tex] , then not a proportion

[tex]\frac{4}{5}[/tex] ( multiply numerator/ denominator by 3 )

= [tex]\frac{12}{15}[/tex] , this is a proportion

[tex]\frac{9}{21}[/tex] ( divide numerator/ denominator by 3 )

= [tex]\frac{3}{7}[/tex] ≠ [tex]\frac{6}{7}[/tex] , then not a proportion

[tex]\frac{10}{16}[/tex] ( divide numerator/ denominator by 2 )

= [tex]\frac{5}{8}[/tex] ≠ [tex]\frac{2}{8}[/tex] , then not a proportion

Answer:

1. 18/8

2. 16/20

3. 15/28

4. 12/24

The function f(x) is graphed below. Determine whether the degree of the function is
even or odd and whether the function itself is even or odd.

Answers

even bc it doesn’t go through the origin

Answer:

even  

Step-by-step explanation:

convert 3 3/4 into a improper fraction

Answers

Answer:

3 3/4 = 15/4

Step-by-step explanation:

To turn a mixed number into an improper fraction, multiply the whole number with the denominator of the proper fraction. Add the numerator of the proper fraction to this product to obtain the numerator of the improper fraction.

Hoped this helped.

Solve 7x2-11x+13=0 by completing the square

Answers

Answer:

i think its 16

Step-by-step explanation:

MY HEAD IS HURTING I BEG FOR YOUR HELP. I WILL MARK BRAINLIST!!

Answers

Answer: No association

Step-by-step explanation:

There is absolutely no pattern going on. This means that the miles ran per week are not really affecting the standing heartbeat. Therefore, I'd say there is no association.

Express 1 19/100 as a decimal

Answers

Answer:

1.19 if its not that its 0.19 but i believe its 1.19.

Step-by-step explanation:

Answer:  1.19 Is 1 19/100 as a decimal

Step-by-step explanation:

factorise: p² - 9
for brainliest

Answers

p^2 - 9

p^2 - 3^2

(p+3)(p-3)

Hope this helps!

the smith family traveled 140 miles from winston salem to asheville they stopped at one rest area the diagram below shows their trip divide into equal segments

Answers

Answer:140 because you have to divided by 1

Step-by-step explanation:

7/14 in its simplist form

Answers

Answer:

1/2

Step by step explanation:

Answer:

1/2

Step-by-step explanation:

Subtract. (5d+6)–(2d+2)

Answers

Answer:

3d+4

Step-by-step explanation:

(5d+6)–(2d+2)

To find the opposite of 2d+2, find the opposite of each term.

5d+6−2d−2

Combine 5d and −2d to get 3d.

3d+6−2

Subtract 2 from 6 to get 4.

3d+4

Hope this helps! :)

what is the tangent ratio of angle x°​

Answers

Answer:

tan x = 3/4

Step-by-step explanation:

The hypotenuse of the triangle is 10 ft.

For angle x, the opposite leg is 6 ft, and the adjacent leg is 8 ft.

tan A = opp/adj

tan x = 6 ft / 8 ft

tan x = 3/4

Tan=opposite/adjacent. Opposite=6, adjacent=8. Tan=6/8. We can divide both terms by 2 to simplify to tan=3/4



Solve 7 ax + 8 ax = 9 ax + 6 for x. Assume a + 0.

Answers

Your answer would be B (1/a)

How can you tell from the equations, without graphing, how many solutions the system has?

Answers

Answer:

A system of two equations can be classified as follows: If the slopes are the same but the y-intercepts are different, the system has no solution. If the slopes are different, the system has one solution. If the slopes are the same and the y-intercepts are the same, the system has infinitely many solutions.

If a consistent system has an infinite number of solutions, it is dependent . When you graph the equations, both equations represent the same line. If a system has no solution, it is said to be inconsistent . The graphs of the lines do not intersect, so the graphs are parallel and there is no solution.

Step-by-step explanation:

Hope this helps !!

Find the odds for and the odds against the event rolling a fair die and getting a 2, a 3, or a 5.

Answers

Answer:

The odds for are 50% and the odds against are 50%.

Step-by-step explanation:

On a die, there is 6 possibilities 2, 3, and 5, are 3 of them.

This means there is a 3/6 chance that it will land on one of those numbers, and there is also a 3/6 chance it will land on 1, 4, or 6.

3/6 is equivalent to 50% and 1/2.

So the odds would be 3/6 for and against. If there are only 6 sides to a die, (1,2,3,4,5,6) and you want to get one of 3 out of the 6, then you have a 50% chance of getting what you want.

A 4-oz. filet of salmon contains 500 mg of potassium. The daily recommended amount of potassium is 3,500 mg. If you ate a 6-oz. filet of salmon, what percent of your daily value did you eat of potassium?

A. 21%
B. 15%
C. 25%
D. 12%

Answers

The answer is 21% because a 6-oz fillet of salmon contains about 750 mg of potassium. 3500-750 equals 2750, meaning that whichever percent closest to that answer is correct. 3500 - 21% = 2760 which is the closest number to the correct percentage therefore A. Is the answer.

Ok so 0.5 x 10^5 = ? What is the answer? The 5 is little and its on top please i don't know how to explain.

Answers

Answer:

50,000

Step-by-step explanation:

The little 5 is called an exponent, so it would be 0.5*10^5.

Ten to the fifth power. you can take the ten and do this. 10x10x10x10x10. The answer would be fifty thousand

the answer is 50,000

Max rode his bike 40 miles in hours.

Answers

Answer:

I don't know what you want to know so I assume you want to find out his miles in minutes:

Divide 40 with 60

Which is 2/3

So Max rode 2/3 miles in a minute

Step-by-step explanation:

Answer:

4 hours if going ten mph and 2 hours if going 20 mph

Sewing machine cost $162.40 after a price increase of 16% find the price before the increase​

Answers

Answer:

$140

Step-by-step explanation:

100/116×$162.40=$140

Answer:

Before the increase it was $136.416.

Step-by-step explanation:

16% of $162.40 is 25.984.

We need to do $162.40 - 25.984 which equals to $136.416.

Hope that helps. x

The equation 750(1.03)4t=1,000 can be used to find the amount of time, t, in years, it takes for a savings account compounded quarterly to reach $1,000. In order to solve the equation 750(1.03)4t=1,000, a student graphs the equations y=750(1.03)4t and y=1,000. What is the approximate solution to the equation 750(1.03)4t=1,000?

Answers

Answer:

Step-by-step explanation:

T=29.16

1/2-1/3x=-4 solve the equation

Answers

Answer: x=-21/2

Step-by-step explanation:

1

2

1

1

3

Answer:

x=27/2

Step-by-step explanation:

1/2-1/3x=-4

subtract 1/2 from both sides

1/2+-1/3x -1/2=-4 -1/2

Group like terms

-1/3 ⋅ x +1/2+(-1/2)=-4 -1/2

Combine the fractions

-1/3 ⋅ x+0=-4 -1/2

Convert the integer into a fraction

-1/3 ⋅ x=-8/2 -1/2

Combine.

-1/3 ⋅ x= -9/2

Isolate the x:

-1/3x ⋅ 3/-1= -9/2 ⋅ 3/-1

1x=-9/2 ⋅ 3/-1

x= -9 ⋅ -3/2

x=27/2 as your answer

According to the graph, how many students received an 90 for their first semester grade?

A: 0
B: 2
C: 6
D: 15

Answers

6 your welcome dbebebbe

Find the slope of the line containing the points (-3, 8) and (-1, 0).

Select one:

a.
zero slope


b.-4

c. -1/4

d.-3

Answers

B) -4
Hope this helps!

Answer: the slope 4

Step-by-step explanation:

the slop is y^2 - y^1 / x^2 - x^1 = 0 -8 / -1 - - 3 = 8/2 = 4

Hope that helps :)

If y ♾x and y = 2 when x = 8, then y = 3 when x =

Answers

Answer:

12

Step-by-step explanation:

The Constant (K) is equal to 8/2 aka 0.25 making the formula now y = 0.25 × x

We have y as 3 so

3 = 0.25 × x we take the 0.25 to the other side by dividing on both sides.. this makes it cancel out on the right.

x is now equal to 3/0.25 which is 12. X = 12

Answer:

Is the answer 9 for the last x

Step-by-step explanation:

hope this helps

Other Questions
I NEED THIS ANSWERED ASAPWhich point is a solution to the system of equations?y=2x+2y=3xA: (0,2)B: (0,0)C: (2,6)D: (6,2) HELPHOW AM I MEANT TO ANSWER THIS QUESTION I WOULD ASO LIKE ANSWER.THX Que plan economico propone Faustino Sarmiento respecto a la ganadera de Facundo Quiroga? I need help and I cant find any sadly. Help!! Which of these story elements is the most useful for finding themes in plays?a: settingb: formc: plotd: characters What were the Articles of Confederation?1. The document that declared Independence for Great Britain2. The peace treaty signed ending the American Revolution 3. the first Consitution in the U.S.4. The agreement made between the federalists and Anti-federalists Look at the translation of the shape. Describe the translation that moves EFGH to E'F'G'H'.3 boxes left 4 boxes up4 boxes right 3 boxes up4 boxes left 3 boxes up Help please. I dont know how to do this :(( hi I'm trying to build a desk that moves up and down electrically but i need helpwhich and from where do i get i motor mechanism that moves up and down Maya ate breakfast and wanted to leave her waitress a 15% tip. Her meal cost$7.50. How much money should Maya leave for the TIP? True or false. You must have an exposition in narrative writing. Express the following numbers in usual form:(i) 8.0210^-5(ii) 4.510^3(iii) 710^-5(iv) 1.000110^8(v) 4.310^12(vi) 3.6149210^5 how do you say i'm hungry in spanish? keeping in step with jesus meaning a letter is chosen at random from the word 'mathematics'. Fin the probability that letter T is not chosen. David has a loyalty card good for a 19% discount at his local hardware store. What would his total in dollars and cents be, after the discount and before tax, if the total cost of all the items he wants to buy is $32? Round to the nearest cent. Describe what militias were like during the French and Indian War. Lesson 6.02 StyleDown:1 proper dining clothing2 the first proper step in fine diningusually folded and made of cloth7 fancy porcelain or ceramic dishesAcross:3. always work outside inward4. many little jobs servers complete6. metal tableware such as teapots or gravydishes8. an oversized base setting that goes downbefore the plate9 different pleces including plates, flatwareand glassware10 used to measure distance of dinnerware why do authors like keys, draw on traditional stories to create new ones? if I was 14 in 1947 then how old am I?