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

Bài 1 Tìm x biết
X^2=16

Answers

Answer:

x=4

Step-by-step explanation:

Will give brainliest to first person

Answers

Answer:

[tex]x^{2} +6x+5[/tex]

Step-by-step explanation:

A=lw

A=(x+5)(x+1)

A= [tex]x^{2} +6x+5[/tex]

The co-ordinates of points (0,-5)&(3,-1) respectively .Find
Vector AB
Magnitude AB ​

Answers

Step-by-step explanation:

Hope you understand through the steps on the attachment, if not kindly reach out

What is the common ratio of the geometric

Answers

the answer is B. 7

Step-by-step explanation:

it's the number u see the most therefore its the most common

Answer:

D. 10 maybe?

Step-by-step explanation:

because it moves a decimal with every number. im not sure I hope it's correct. it adds on a zero


A function w satisfies w(1) = 5 and w(4) = 1. A
function z satisfies z(3) = 4 and z(4) = 5. What is
the value of w(z(3)) ?
A) 1
B) 2
C) 4.
D) 5
ce A

Answers

Answer: A) 1

Since z(3) = 4, w(z(3)) = w(4)Since w(4) = 1, w(z(3)) = w(4) = 1

determine the equation of a perpendicular line to y= -3/5x + 14, y-intercept 8

Answers

9514 1404 393

Answer:

  y = 5/3x +8

Step-by-step explanation:

The slope of the perpendicular line is the opposite reciprocal of the slope of the given line. The given slope is -3/5, so the perpendicular slope is ...

  -1/(-3/5) = 5/3

That and the given y-intercept can be put into the slope-intercept equation ...

  y = mx + b . . . . . line of slope m and y-intercept b

  y = 5/3x + 8

Does anyone know how to do b

Answers

Answer:

[tex]\frac{1}{9}[/tex]

Step-by-step explanation:

Using the rule of exponents

[tex]a^{-m}[/tex] = [tex]\frac{1}{a^{m} }[/tex] , then

[tex]3^{-2}[/tex] = [tex]\frac{1}{3^2}[/tex] = [tex]\frac{1}{9}[/tex]

Simplify the following, leaving your answer with a positive exponent:
x^-12/ x^-7

Answers

Answer:

[tex]\frac{1}{x^{5} }[/tex]

Step-by-step explanation:

x^-12/ x^-7

= x^(-12-(-7))

= x^-5

= 1/x^5

Erica drives 25 miles south, and then drives east. After a while, it is determined that she's 60 miles (diagonally) from where she started. How far east did she drive? (HINT: draw a rough sketch!)​

Answers

The distance she drove east from the starting point is 54.54 miles.

The given parameters include;

initial displacement of Erica, d₁ = 25 miles south

final position of Erica, d₂ = 60 miles east

The displacement of Erica from the initial position as shown in the diagram is calculated as;

Apply Pythagoras theorem, to solve for x;

x² = d₂² - d₁²

x² = 60² - 25²

x² = 2975

x = √2975

x = 54.54 miles

Therefore, the distance she drove east from the starting point is 54.54 miles.

To learn more about Pythagoras theorem, please visit: https://brainly.com/question/17033407

Can anyone help me with this?

Answers

I thing it lies on the negativity side of the number line between -2,24

13
Simplify the following expression and evaluate for x=36
b
0.02(1.4x - 300)-0.2(2.4x+10)+0.552x
answer:

Answers

Answer:

0.028x-6-0.48x-2+0.552x

(0.028-0.48+0.552)x-6-2

0.1x-8

The simplified expression, when evaluated for x=36, is -4.4, when following expression and evaluate for x=36 b= 0.02(1.4x - 300)-0.2(2.4x+10)+0.552x

To simplify the expression and evaluate it for x=36, let's break it down step by step:

0.02(1.4x - 300) - 0.2(2.4x + 10) + 0.552x

First, let's simplify the terms within each set of parentheses:

0.02 * (1.4 * 36 - 300) - 0.2 * (2.4 * 36 + 10) + 0.552 * 36

Next, perform the multiplications and additions/subtractions within each set of parentheses:

0.02 * (50.4 - 300) - 0.2 * (86.4 + 10) + 0.552 * 36

0.02 * (-249.6) - 0.2 * (96.4) + 19.872

Now, evaluate the remaining multiplications:

-4.992 - 19.28 + 19.872

Finally, perform the additions and subtractions:

-4.992 - 19.28 + 19.872 = -4.4

Therefore, the simplified expression, when evaluated for x=36, is -4.4.

To know more about  simplified , here

https://brainly.com/question/28595186

#SPJ2

HELPPPPPPPPPPPPPPPPPP. PLEASEEEEEE

Answers

When they ask for combining the variable terms, you take one of the variable terms and move to the other side of the equation and change its sign. From there, you cross multiply those variable terms and simplify. Once you simplify, you look at the denominator and that will be your answer.
Similarly for the constant terms, you take one of the constant terms and move to the other side of the equation and change its sign. Again, you cross multiply these two constant terms and simplify. The denominator you get after simplification will be your answer.

Answers:

LCD needed to combine the variables:  15

LCD needed to combine the constants:  21

==============================================

Explanation:

If two numbers m and n do not have any common factors (other than 1), then the LCM is m*n. We simply multiply the values.

So for example, the LCM of 2 and 3 is 2*3 = 6.

For the variable terms, the denominators are 5 and 3. So the LCM is 5*3 = 15, and this is the LCD of those variable fractions.

Similarly, the LCD of the constant terms is 21 because 7*3 = 21.

--------

Again, for all of these examples, the two values had no factors other than 1 in common. If you were dealing with something like the LCM of 8 and 12, then the LCM would not be 8*12 = 96. But we can fix things by dividing that by 4 to get 96/4 = 24 which is the true LCM here.

So the more generalized formula would be (m*n)/(GCF of m and n)

This formula works for the previous section because the GCF was 1.

We want to find the zeros of this polynomial:

p(x) = 2x^3 + 3x^2 - 18x -27.

Plot all the zeros (x-intercepts) of the polynomial in the graph.

Answers

Answer:

-3,-1.5,3

Step-by-step explanation:

(x+3) x=-3

(x-3) x=3

(2x+3) x=-3/2

If angle C is 120
degrees, what is the
measure of angle D?

Answers

Answer:

If angle C is supplementary to angle D, then angle D is 60 degrees.

If angle C is corresponding, vertical, alternate interior, or alternate exterior to angle D, then angle D is 120 degrees.

Solve the triangle. Round your answers to the nearest tenth.
HELP PLEASE !!!!
A. m B.m C.m D.m

Answers

Answer:

Angle A = 42°

Side b (Opposite side of angle B) = 13

Side c (Opposite side of angle C) = 29

Answered by GAUTHMATH

what is the length of the third side triangle?

Answers

Answer:

x = 8cm

Step-by-step explanation:

17² = 15² + x²

289 = 225 + x²

- x² = 225 - 289

x² = 64

x = √64

x = 8

Good Luck! :)

[tex]{ \boxed{ \sf \color{blue}{answer}}}[/tex]

x = 8 cm

Step-by-step explanation:

17² = 15² + x²

289 = 225 + x²

x² = 225 - 289

x² = 64

x = √64

x = 8

___________________

Teorema pythagoras

factor and solve problem in picture pleaseeee

Answers

I hope it's right have a great day :)

40 POINTS I’ll give brainlist

Answers

Answer:

I don't understand the equation, please state it differently

What is the slope of the line below is -5. Which of the following is the point-slope form of the line?

Answers

Answer:

[see below]

Step-by-step explanation:

Point slope form is:

[tex]y-y_1=m(x-x_1)[/tex]

(x1, y1) - a point

m - slope

We are given the point of (2, -7), and the slope of -5.

[tex]y-y_1=m(x-x_1)\rightarrow y-(-7)=-5(x-2)\rightarrow\boxed{y+7=-5(x-2)}[/tex]

Hope this helps.

Which equation can be solved using the one-to-one property?
3X = 10
4In x = 2
log x = 5
4* = 47x+2

Answers

Answer:

3x=10

Step-by-step explanation:

x=10-3

x=7

i hope this answer will help u

Answer:

4x = 47x+2

Step-by-step explanation:

Using the one–to–one property, you can set x = 7x + 2.

What is the value of a? Round to the nearest tenth.

Answers

Answer:

50 percent?

Step-by-step explanation:

pls help i need to finish this asap !!

Answers

Answer:

b = -3

Step-by-step explanation:

Using the graph, when x=2

y = -3

please answer this for me really struggling thanks

Answers

Answer:

Just agree on having ice cream

Step-by-step explanation:

Could you please please help me with these questions this is my last attempt and it's due today

Answers

Answer:

70.20%

Step-by-step explanation:

Since you seem to be in a rush, let's go for a concise answer.

Let's add 146 and 344 to get 490, and do 344 / 490. This gives us the decimal proportion of ice cream cones that was sold. 344 / 490 = 0.70204.

Excellent. To get the percentage, let's multiply 0.70204 by 100 to get 70.204%. Rounding this to the nearest hundredth gives us 70.20%.

Hope this helps!

Note: This question seems to be badly worded, your 42.44% is correct if it's percentage of ice cream bowls in ice cream cones. I'm assuming that it's the percentage of all ice cream. :)

What is the division? 9÷890

Answers

Answer:

98.89

Step-by-step explanation:

Answer: 9/890=0.01011235955

Step-by-step explanation:

Maya is learning to drive, so this weekend she practiced driving 1/2 of a mile with her mother and another 3/4 of a mile with her father. How far did Maya drive in all?

Answers

Step-by-step explanation:

1/2 + 3/4

= 2/4 + 3/4

= 5/4

= 1 and 1/4 miles

Last one, So so sorry!
Which net diagram cannot be folded into a triangular pyramid?
A.
B
C
D

Answers

C and D are the same, so its between A and B, which concludes your answer should be B

Answer:

all diagram can be folded into triangular pyramid.

ASAP!! can i get help on this one and can i please get a vivid explanation thank you.

Answers

Answer:

3x + 11

Step-by-step explanation:

1) Remove Parentheses:

x + 4 + 2x + 7

2) Combine Like Terms:

(2x + x) and (4 + 7)

3) Simplify:

3x + 11

Hope this helps, good luck! Have a good day. :)

help me pls I need help its Pythagorean theorem I’m failing pls

Answers

Answer:

22.2 m.

Step-by-step explanation:

They walk in a right triangle.

First they walk 7 then 6 m = 13 m.

We calculate the distance of the diagonal using Pythagoras:

x^2 = 6^2 + 7^2 = 85

x = √85

= 9.2 m. yo nearest 1/10.

Answer is 13 + 9.2

= 22.2 m.

How do I solve this

Answers

The awnser is (-1, 3)

Answer:

x = -1 y = 3

Step-by-step explanation:

x = 2y-7

2x + 3y = 7

Substitute x =2y-7 in 2y + 3y = 7

2(2y-7) + 3y = 7

4y-14+3y = 7

7y - 14 = 7

7y = 7 + 14

7y = 21

7y/7 = 21/7

y = 3

Substitute 3 for y in x = 2y-7

x = 2(3) - 7

x = 6 -7

x = -1

Answered by Gauthmath

Other Questions
is (x-2) a factor of f(x) = x^3 2x^2 + 2x + 3, use either remainder theorem or factor theorem to explain your reasoning Please calculate GDP using the following information: Government purchases - $200 billion Depreciation - $60 billion Investment - $80 billion Consumption - $600 billion Exports - $100 billion Imports - $120 billion Income receipts from the rest of the world - $10 billion Income payments to the rest of the world - $8 billion How wide is the portion of Antarctica that belongs to Chile?half a thousand square milestwo million square milesone million squaremileshalf a milijon square milesThe answer is d Sally collected 22 pounds of cans to recycleand plans to collect 1.8 more pounds eachweek. In this situation, what is the value ofthe y-intercept? Translate this to english (btw its snapish to english)Eres precioso How many terms are in the following geometric sequence? Type your numerical answer only. Do not type any additional characters.0.0625, 0,25, 1, 4194304 What were the transitory freedoms Mandela wanted when he was a student If he _______ ill yesterday, he would have taken part in the football match.A. hasnt been B. hadnt been C. wouldnt be D. werent In an experiment, a small dialysis bag is filled with a 20% salt solution. It is placed in abeaker filled with a 40% salt solution. Assuming that water can pass through thesmall pores of the dialysis bag, whereas the large salt molecules cannot, what willhappen to the size of the dialysis bag? 1. Find the mistake in this sentence and correct it No one have gotten such high marks in writing compositions beforeA . HaveB . SuchC . WritingD . Before He tells you that the president will have more power than many Princes in Europe.....according to the essay, what is the effect of dividing control of the miliitary power of the United States between Congress and the President State any ten reasons why students in Uganda need to study physics?use examples of the possible technological advancements which can be made using the knowledge of physics How is modern technology developed? Explain. Figure ABCD is a parallelogram.What is the perimeter of ABCD?A4y - 2B14 unitsVX0 38 units3x - 144 units2x + 249 unitsD2y + 6 which of the following statements is true? -6 < -8 -6> -8 or -6=-8 Britain taxed windows from 1696 until 1851. Under the 17471757 tax rates, you would pay no tax if your home had 09 windows, but if your home had 1014 windows you would pay a tax of 6 pence per window for every window in your home. The window tax is similar to the U.S. income tax in that both are ___________. A. progressive taxes. B. regressive taxes. C. sales taxes. D. proportional taxes. The government can stop a public protest of its policies if____(A) The demonstrators face counter demonstrators (B) The protest is on public property (C) The protest is unpopular (D) The demonstrators endanger public safety Write the equation of the graph shown below in factored form.f(x) = (x 2)2(x + 1)(x 4) f(x) = (x + 2)2(x 1)(x + 4) f(x) = (x + 2)2(x + 1)(x + 4) f(x) = (x 2)2(x 1)(x 4) Which of the following rational functions is graphed below?oA. F(x) = 1/2xB. AX) = 1/x-2C. F(x) = 1/x+2 Pythagorean Theron can someone help me solve this