A 100-kg rock is on a 20-m cliff. If the rock is pushed off the cliff, how much kinetic energy does the rock have before hitting the ground?

Answers

Answer 1

Answer:

Step-by-step explanation:

19620 J.


Related Questions

Find the equation of a line that passes through the point (-4,1) and has a gradient of 2.
Leave your answer in the form
y=mx+c

Answers

Y=2x+9 it’s hard to explain but I’m pretty sure this is the answer

what is the greatest common factor of 32 and 56

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its 8. hope this helps you.

Express 29 and 37 as the sum of two squares.
If you can answer the correct answer first, then I will mark brainliest.

Answers

Answer:

See below

Step-by-step explanation:

[tex] {5}^{2} + {2}^{2} = 25 + 4 = 29 \\ \\ {6}^{2} + {1}^{2} = 36 + 1 = 37[/tex]

The values are 29 = 5² + 2² and 37 = 6² + 1².

What is square of number?

The definition of a square number states that they are numbers that have been multiplied by themselves. In other terms, a natural number is referred to as a square number if it is multiplied by itself.

Decimal squares are fairly simple to calculate, and the process is the same for both whole numbers (integers) and decimals.

Given numbers 29 and 37

to express in form of sum of two square

let = 29 = a² + b²

the perfect square number near 29 is 25

29 = 25 + 4

29 = 5² + 2²

and 37 = a² + b²

the perfect square near 37 is 36

37 = 36 + 1

37 = 6² + 1²

Hence the numbers in sum of two squares are,

29 = 5² + 2² and 37 = 6² + 1²

Learn more about square of number;

https://brainly.com/question/28610159

#SPJ2

PLEASE NO LINKS AND NO NEGATIVITY

Answers

10p-40
do 2.5x4p and 2.5x16 and solve from there

Answer these 2 different questions ( i am so confused on this hellp!!)
6) All the people of a neighborhood pooled together and won the lottery. They won $10,000,000 and each person got a 0.02 share. How much money did each person receive?

7) Sally scored 9.007 in gymnastics. Jack scored 8.949. How much higher was Sally's score than Jack's?

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6) above 7) 0.058 or 0.048

half the product of two number a and b, added to thrice a third number c

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Answer:

  ab/2 +3c

Step-by-step explanation:

Maybe you want to translate this to an algebraic expression.

__

The product of a and b is written ab.

Half that can be 1/2ab or ab/2. The latter tends to be less ambiguous.

Thrice c is 3c.

So, your expression is ...

  ab/2 +3c

What is the measure of the missing angle in this triangle
Yes

Answers

Answer:

The measure of the missing angle is 25 degrees.

Answer = 25

Sum of angles in a triangle is 180.

To find the missing angle:

180 - total of other given angles = missing angle

Total of other given angles = 155

180 - 155 = 25

Compare: The graphs below show the number of points you earn in each level of a game. Which games, if any, have a proportional relationship between the number of points you earn and the level of 7the game? In which game can you earn the most points in level 2? Explain your answer.

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Answer:

Ok A and C are both proportional because it goes through the origin.

Step-by-step explanation:

If the line doesn't start or go through the origin will not be proportional. So If the line went through or started from the origin will be proportional. Which leaves B as Non-proportional graph.

the numbers 1 to 9 are randomly arranged to form a 9-digit number. what is the probability that the number obtained is divisible by 18?
(please write the solution)

Answers

Answer:

Hence the probability that the number is divisible by 18 is 4/9 or approx. 0.4444. or even 44.4%

Step-by-step explanation:

If we have 9 digits 1–9 placed randomly to form a 9-digit number without repetition and we want the probability of that number is divisible by 18, then we only need to look at the fact if it is divisible by 18, then it is also divisible by 2 and 9. Adding the digits 1–9 would give us the following (including checking for divisibility by 9):

(9 x 10)/2 =90/2 = 45

45÷9=5

By divisibility of 9, if the sum of the digits is divisible by 9, then the original number itself is divisible by 9. Since the number 45 is divisible by 9, we know that all the possible 9-digit numbers will be as well. The only thing we would have to look at is if it is even since the number has to be divisible by 2. 

There are 9 digits of which 4 are even (2, 4, 6 or 8).

So the probability that the number is divisible by 2 is 4/9.

Hence the probability that the number is divisible by 18 is 4/9 or approx. 0.4444.

what is xt8=-3 plz help

Answers

r=- 3/8 cos (0)x t maybe is this

PLZ ANYONE HELP ME PLZ BEFORE THE HOLIDAY BREAK BEGINS!!!!!!!!!!!!!!

The Uber base fare is $1. There is a charge of $1.05 per mile. You also plan to give the

driver a $2 tip.

Task 1 Student Directions:

Part A: Write an expression to represent the amount of money need to take a taxi or take Uber.

(x = the number of miles.)
Taxi Expression: ____________________ Uber Expression: __________________

Part B: Complete the table to determine how much it will cost to go 12 miles, 20 miles and 50 miles.

Taxi Uber

Part C: Which mode of transportation is better, use information from the table to support your answer. BUT PLZ JUST DO THE PART B AND PART C ONLY THANKS.

Answers

Answer:

Part A. (Uber)$1 + $2 + 1.05x

(taxi)

Part B. (Uber)$15.60 (12mi) $24(20mi) $55.50(50mi)

(taxi)

Part C.

Step-by-step explanation:

Part B. Uber

12 miles: $1 + $2 + 1.05(12)

3+12.60

15.60

20 miles: $1 + $2 + 1.05(20)

3+21

24

50 miles: $1 + $2 + 1.05(50)

3+52.50

55.50

Part B. Taxi

Part C.

In the past year Jina watched 36 movies that she thought were very good. She watched 60 movies over the whole year. Of the movies she watched, what percentage did she rate as very good?

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Answer:

It is 21.6

hope this helps

Which graph shows a dilation?

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the 1st and 3rd one shows dilation. mark me brainlist

13-n + 2n > 8 + 1 Solve the given inequality and graph and solution

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because we are finding for the variable and not the coefficient we divide it by the number attached to the variable which is the coefficient to get the result of the variable

Simplify the expression.
4+ 5(3x - 2) - 3x
O A. -187-6
ООО
O B. -18x-14
-
C. 12x - 6
O D. 12x+ 2 2


I need friends answer this and we will be besties

Answers

Answer:

12x - 6

Step-by-step explanation:

4 + 15x - 10 -3x

(15x - 3x) + (4-10)

12x - 6


What is the volume of a cube with sides of length 9m?

Answers

Answer:

V = 729 m³

General Formulas and Concepts:

Pre-Algebra

Evaluation

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Geometry

Volume of a Cube Formula: V = s³

V is volume (in units³)s is a side length

Step-by-step explanation:

Step 1: Define

Identify variables.

s = 9 m

Step 2: Find Volume

Substitute in variables [Volume of a Cube Formula]:                                    V = (9 m)³[Order of Operations] Evaluate:                                                                      V = 729 m³

Which statement about the following equation is true? 3x2 â€"" 8x 5 = 5x2.

Answers

The discriminant is greater than 0, so there are two real roots and it can be determined by using nature of roots.

Given that,

Equation; [tex]\rm 3x^2 - 8x + 5 = 5x^2[/tex]

We have to determine,

Which statement about the following equation is true?

According to the question,

To determine the true statement about the equation following all the steps given below.

Equation; [tex]\rm 3x^2-8x+5=5x^2[/tex]

Simplify the equation for the roots of the equation,

[tex]\rm 3x^2-8x+5=5x^2\\\\\rm5x^2- 3x^2+8x-5=0\\\\ 2x^2+8x-5=0\\\\ 2x^2+8x-5=0\\\\2x^2+8x=5\\\\2x(x+4)=5\\\\Then, \ 2x = 5, \ \ x = \dfrac{5}{2} \\\\And\ \ x+4=5, \ \ x=5-4, \ \ x=1[/tex]

The equation has two real roots and x is 1 and 5/2.

Hence, The discriminant is greater than 0, so there are two real roots.

For more details about Discriminate refer to the link given below.

https://brainly.com/question/10706429

FINAL PART OF MY HW!!! PART 6!!! IT IS STILL UNIT RATE!!!!!​

Answers

Answer: Answer is on first screenshot

Step-by-step explanation:

[tex] \tt\blue{Pwe \: \: \: POINTS }[/tex]​

Answers

Answer:

thank you pare XD

Step-by-step explanation:

(≧▽≦)(≧▽≦)

The primary driver of offshore outsourcing is driven by __________.

Answers

Answer:

cost

Step-by-step explanation:

What is the distance from point D to point C?
A.1 unit

B.2 units

C.3 units

D.4 units​

Answers

Answer:

the distance from point D to point C.

B.2 units

Answer:

B:-2

Step-by-step explanation:

just count the box and you will get your answer

x + 2y = 7
x - y = 1

Solve for x and y?​

Answers

Answer:

y=2

x=3

Step-by-step explanation:

make x - y = 1 into x= y + 1

put that wherever x is in the other equation

so y + 1 + 2y =7. then combine like terms into 3y =6. then divide 6 by 3 so you get y = 2

then substitute 2 into the y in the equation x - y = 1 and you get x = 3

METHOD OF ELIMINATION:

Given pair of linear equations are:

x+2y= 7 – – – Eqn(i)

On comparing with a1x+b1y+c1 = 0

a1 = 1, b1 = 2, c1 = -7

x-y = 1 – – – Eqn(ii)

On comparing with a2x+b2y+c2 = 0

a2 = 1, b2 = -1 , c2 = -1

a1/a2 = 1/1 = 1

b1/b2 = 2/-1 = -2

c1/c2 = -7/-1 = 7

We have,

a1/a2 ≠ b1/b2 ≠ c1/c2

So, Given pair of linear equations in two variables have a unique solution.

Now,

On Subtracting eqn(ii) from eqn(i) then

x+2y = 7

x-y = 1

(-)

_______

0 +3y = 6

_______

⇛ 3y = 6

⇛ y = 6/3

⇛ y = 2

On Substituting the value of y in (1) then

⇛ x-2 = 1

⇛ x = 1+2

⇛x = 3

Answer: Therefore , the value of x and y with be (3,2) respectively.

Additional comment:

If a₁x+b₁y+c₁ = 0 and a₂x+b₂y+c₂ = 0 are pair of linear equations in two variables thenIf a₁/a₂ ≠b₁/b₂ ≠ c₁/c₂ then they are Consistent and independent lines or Intersecting lines and they have a unique solution.If a₁/a₂ = b₁/b₂ = c₁/c₂ then they are Consistent and dependent lines or Coincident lines and they have infinitely number of many solutions.If a₁/a₂ =b₁/b₂ ≠ c₁/c₂ then they are Inconsistent lines or Parallel lines lines and they have no solution.


[tex] \frac{5}{5x - 7} = 10[/tex]
solve the equation.​

Answers

Answer:

x=1.5

Step-by-step explanation:

5=10(5x-7)0.5=5x-77.5=5xx=1.5

can you please help me​

Answers

Answer:

Step-by-step explanation:

1. HI // KL , J is midpoint of  HL     1. Given

2. ∠IHJ ≅ ∠JLK                             2. Alternate interior angles are congruent

3. ∠IJH ≅ ∠KJL                              3. Vertically opposite angles

4. HJ ≅   JL                                     4. Given

5. ΔHIJ ≅ ΔLKJ                              5.  A S A congruent

                                                             (Angle Side Angle)

1.(−9)÷ ?=5
2.?÷(−2)=−6.41

Answers

For question one the answer is -1.8
And for question two it's -12.82

Write inequalities for the following:
A) AJ makes at least 20 dollars

B) Lyla has no more than 70 barrettes

C) Rook takes at most 6 presents

D) River gives no less than 8 bones

Answers

Answer:

AJ. x<20

Lyla. x> or equal to70

Rook. x>or equal to 6

River. x<8

I hope that this helped

Can someone please help me with this one this is confusing to me :’) tysm!

Answers

Answer: 125 centimeters

1,250 millimeters

Step-by-step explanation:

'centi' means hundred. 100 centimeters go into a meter.

'milli' means thousand. 1,000 millimeters go into a meter. Easy math from there.

It’s 125 centimeters or 1,250 millimeters.

Hi someone please help

Answers

Answer:

1st one is 68 and the 2nd one is 25. hope that helps

Answer:

1. 112°2. 25°

Step-by-step explanation:

1. 50° + 62° = x°

112° = x°

2. x° + 125° = 150°

x° = 150° - 125°

x° = 25°

(An exterior angle of a triangle is equal to the sum of its two interior opposite angles.)

Now that Yardley Auto Repair has a different owner, its mechanics make $35 per hour. That is 25% more than they originally made. How much did the mechanics use to make per hour?

Answers

Answer:

Step-by-step explanation:

So the Yardley people got a raise! Hurray! They make ALL that they made before and a little bit more.

Let x = original pay

100% of x is what they made before.

25% of x is the amount of raise they got.

100% of x should be written 1x, or just x (convert the % to a decimal)

25% of x should be written .25x

So a math sentence that says their original pay plus their raise is now $35 would be written

1x + .25x = 35

Combine the x terms.

1.25x = 35 Now divide both sides by 1.25 to get the x all by itself.

1.25x/1.25 = 35/1.25

x = 28 Remember what x stood for? x is the original pay. The mechanics used to make $28 per hour.

Express 30^2/3 in simplest radical form.

Answers

Answer:

300

Step-by-step explanation:

Other Questions
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