Answer:
Potential Energy = 10J
Step-by-step explanation:
mass of the book = 1.0kg
height = (0.5 + 1)m
acceleration due to gravity = 10m/s²
Potential Energy = mass × acceleration × height
Potential Energy = 1kg × 10m/s² × 1m
Potential Energy = 10J
dilation the center of dilution is the origin b (2,3) and B(-4,-6) what is the scale factors of this dilation that transformed a B into B
Given:
Consider the two points are B(2,3) and B'(-4,-6).
Center of dilation is the origin.
To find:
The scale factors of this dilation that transformed B into B'.
Solution:
If a figure dilatated by scale factor k and center of dilation is the origin, then
[tex](x,y)\to (kx,ky)[/tex]
It means, the point after dilation is
[tex](x',y')=(kx,ky)[/tex]
where, k is the scale factor.
[tex]k=\dfrac{x'}{x}[/tex]
x-coordinate of image is -4 and x-coordinate of original point is 2.
[tex]k=\dfrac{-4}{2}[/tex]
[tex]k=-2[/tex]
Therefore, the scale factor is -2. It means, the point and image lie on the opposite sides of center of dilation.
First to answer gets brainliest!
Answer:
it is the first one
Step-by-step explanation:
-3n-4n-17=25
What is n?
Answer:
-6
Step-by-step explanation:
add -3n and -4n= -7n
add 17 to 25
-7n=42
n=-6
6.Find the value of x. Don't forget your reasons.
(x-38)
Answer:
x = 109
Step-by-step explanation:
The figure has one pair of parallel sides and is a trapezoid.
The lower base angle is supplementary to the upper base angle on the same side, thus
x + x - 38 = 180 , that is
2x - 38 = 180 ( add 38 to both sides )
2x = 218 ( divide both sides by 2 )
x = 109
Prove algebraically that the product of two odd numbers is always an odd number.
Answer:
no this is wrong statement two odd numbers always gives u an even number
example: a) 5+3=8
b) 13+7+20
Step-by-step explanation:
An iPhone costs 7 times as much as an AirPods. Together they cost $1,200. Find the price of the laptop and iPod.
Answer:
Airpods=$150 iPhone=1050
Step-by-step explanation:
$1,200/8=150 150*7=1050
I might be wrong tho
Find the exact length of the third side.
40
32
If you travel 1000 feet in 5 minutes, what is your speed per minutes?
Answer: 200 feet
Step-by-step explanation:
1000feet/5feet= 200feet
Answer:
200 feet per minute
Step-by-step explanation:
Speed = Distance/Time
Since you want to find the "per minute", you would just divide the total distance by the number of minutes:
1000 feet / 5 minutes = 200 feet per minute
Write the phrase as an expression.
a number b squared
Prove that when 2 lines intersect each other ,then the vertically opposite angles formed are equal.
plz help fast
Answer:
Because both lines intersect at one given point, this means that wherever they intersect both lines will have the same length on each side because that one point serves as the half way point between the intersection. meaning that if two lines cross and it creates the vertical angle of 150⁰ then by definition the side that is across that intersection point will also be 150⁰
Answer:
Step-by-step explanation:
If two lines i.e. AB & CD intersect each other. They have two pair of opp. angles.
i.e.
∠AOC,∠DOB,∠AOB,∠COB.
To prove :- ∠AOC=∠DOB & ∠AOD=∠COB
Proof :-
∠AOC+∠AOD=180 °
[linear pair] ___(1)
∠AOD+∠BOD=180°
[linear pair] ___(2)
from eq. (1) & (2)
∠AOC+∠AOD=∠AOD+∠BOD
i.e. [∠AOC=∠BOD]
Similarly [∠AOD=∠COB]
Hence proved.
Hope this helps
plz mark as brainliest!!!!!!!
Are these two ratios proportional?
2/5 and 3/4
Yes or no?
y = x-3
y = x +3
Independent
Dependent
Inconsistent
Answer:
y = x-3
y = x +3
Dependent
HELPPPPPPPP PLS!!!!!!!
Answer:
x = 8
Step-by-step explanation:
Set up an equation: (7x - 2) = (11x - 34)Combine like terms: 7x - 11x = 2 - 34Simplify: -4x = -32Divide each side by -4 to cancel out the -4 next to x. It should now look like this: x = 9I hope this helps!
6th grade math help me plzzzzz
Answer: -1
3 + (-4) = -1
Define the word evaluate to me. Use proper English and complete sentences.
Answer:
form an idea of the amount, number, or value of; assess
Step-by-step explanation:
Answer:
I evaluate them for opportunities, "he said. He stopped to evaluate the gilded ornaments."
Anyone know the answer to this question
Answer:
The relation is a function because there isnt a repeating y
Answer:
y= -3x
Step-by-step explanation:
can u guys please help I'm really behind in school I'm in 7th grade
The value of x is 42. Multiply the top and bottom by 6 because the numerator in the first fraction is 2 and the numerator for the second fraction is 12. When you multiply 2 by 6, you get 12. You have to do the same for the denominator. multiply 7 by 6. You get 42. The value of x is equal to 42. Hope this helps.
Answer:
42
Step-by-step explanation:
First, you cross multiply.
12 x 7= 84
2 multiplied by x will give you 2x.
Now, you have the equation below left:
84=2x
Then, you divide by 2 on both sides (in order to leave x by itself):
84/2= 42
x=42
Find the Unit Rate on a 5-gallon bucket of paint that costs $68.75
Answer:
$13.75 per gallon
Step-by-step explanation:
To solve for any unit rate you use
[tex]\frac{1}{x} =\frac{5}{68.75}[/tex]
Cross multiply.
So 68.75 = 5x
Divide both sides by 5 to get x alone.
13.75 = x
Therefore 1 gallon equals $13.75
a 21-ounce box of cereal costs $3.87.what is the unit price of the cereal?
Answer:
$0.18 per ounce
Step-by-step explanation:
$3.87/21=0.1842857....
Round to the nearest $0.01
1 ounce box cost $0.182.
What is Unitary method?It is a method where we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.
Steps to Use Unitary MethodFirst, let us make a note of the information we have. There are 5 ice-creams. 5 ice-creams cost $125.
Step 1: Let’s find the cost of 1 ice cream. In order to do that, divide the total cost of ice-creams by the total number of ice-creams. The cost of 1 ice-cream = Total cost of ice-creams/Total number of ice-creams = 125/5 = 25. Therefore, the cost of 1 ice cream is $25.
Step 2: To find the cost of 3 ice-creams, multiply the cost of 1 ice cream by the number of ice-creams. The cost of 3 ice-creams is cost of 1 ice-cream × number of ice-creams = 25 × 3 = $75. Finally, we have the cost of 3 ice-creams i.e. $75.
Given:
21-ounce box of cereal costs $3.87
So, 1 ounce box cost= 3.84 / 21
= $0.182
Hence, 1 ounce box cost $0.182.
Learn more about unitary method here:
https://brainly.com/question/22056199
#SPJ2
It took researchers three weeks to analyze a large amount of data using a supercomputer. How many minutes did it take them to analyze the data?
1,440 minutes
4,320 minutes
10,080 minutes
30,240 minutes It took researchers three weeks to analyze a large amount of data using a supercomputer. How many minutes did it take them to analyze the data?
1,440 minutes
4,320 minutes
10,080 minutes
30,240 minutes
Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Help please asapppppppp
Answer:
The last two. Are the answers.
Step-by-step explanation:
It wouldn't let me write the letters it said it was inappropriate.
Hope this helps
x2+9x+20 plz help with it
Answer:
11x + 20
Step-by-step explanation:
x2 + 9x + 20
2x + 9x + 20
11x + 20
Hope this helped!
Answer:
(x + 5)(x + 4)
Step-by-step explanation:
Assuming you require the expression to be factored
Given
x² + 9x + 20
Consider the factors of the constant term (+ 20) which sum to give the coefficient of the x- term (+ 9)
The factors are + 5 and + 4, since
5 × 4 = + 20 and 5 + 4 = + 9 , thus
x² + 9x + 20 = (x + 5)(x + 4) ← in factored form
please answer for brainliest
Answer:
B
Step-by-step explanation:
abs value of -9 is still 9, so it should be "="
the ratio of boys to girls in your class is 3:4 there are 20 girls in the class how many boys are there ?
The table shows data for the number of customers that shopped each hour at store A and at store B on a Saturday.
Store 8 A.M. 9 A.M. 10 A.M. 11 AM. 12 P.M. 1 P.M.2 P.M. 3 P.M. 4 P.M. 5 P.M.
А
2
3
5
7
10
6
8
9
4
2
B
1
4
4
6
10
8
8
6
4
2
Move the options to the blanks to answer each question.
Which store's data has the greater mean?
Which store's data has the greater median?
Which store's data has greater range?
Store A
Store B
Answer: the greater mean is Store A, the greater median is Store A, the greater range is Store B
Step-by-step explanation:
Ill cash app you a dollar and I’ll mark brainliest!!! Pleaseeee help me and she said to classify everything instead?
4) The triangle on the right is an equilateral
Find the value of X and Y
Answer:
angle Y is 29 degrees
angle X is 120 degrees
Step-by-step explanation:
Well, if the triangle is an equilateral, then all the angles are equal to
60 degrees
that means the the angle at the top point is 60+31 = 91 degrees
the right point is 60 degrees
every triangle has 180 degrees total
180 - (91+60) = 29 degrees
NOW FORGET ABOUT THE EQUILATERAL FOR A BIT
180 = 31+x+29
simplify
180 = 60+x
subtract 60 from both sides
120 = x
The midpoint of line segment GH with endpoints G(5,-2) and H(17,8) is:
(11,5)
O (-12, -10)
0 (0,0)
O (11,3)
Answer:
11,3
Step-by-step explanation: basic midpoint formula
Are x(3x) and 4x equivalent?
Answer:
They are not equivalent.
Step-by-step explanation:
x(3x) = 4x
x by itself = 1x
1x ( 3x ) = 4x
1x times 3x = 3x
3x = 4x is not equivalent.
A fish swims at a rate of 8 feet per second. How far can the fish swim in 23
seconds?
Answer:
8(23) so 184
Step-by-step explanation:
Answer:
it would have traveled 184 feet
Step-by-step explanation:
Since the rate in which the fish is swimming is 8 feet per second and given that we have to figure out the distance in which it traveled in 23 seconds, we can just multiply 8× 23 to receive 184 feet in 23 seconds.