Answer:
7.75J
Step-by-step explanation:
kinectic energy formula = 1/2mv²
m mass
v velocity
1/2 x 62 x 0.5² = 7.75
A woman is walking at a rate of 0.5m/s. Her mass is 62 kg. The woman's kinetic energy in joules:
K.E. = 7.75 kgm²/s²
What is Kinetic Energy?
The energy an object has as a result of motion is known as kinetic energy in physics. It is described as the effort required to move a mass-determined body from rest to the indicated velocity. The body holds onto the kinetic energy it acquired during its acceleration until its speed changes.
Given,
Mass = 62kg
Velocity = 0.5m/s
The formula for Kinetic Energy is :
K.E. = 1/2 m v².
K.E. = 1/2 (62)(0.5)²
K.E. = 1/2 (62)(0.25)
K.E. = 1/2 (15.5)
K.E. = 15.5/2
K.E. = 7.75 kgm²/s²
or
K.E. = 7.75 joules
Hence, he woman's kinetic energy in joules, K.E. = 7.75 kgm²/s²
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PLEASE HELP ME SO I CAN GRADUATE!!!!!
What is the y-intercept of the line passing through the point (4,-5) with a
-2
slope of ?
A.
41
9
O
B.
O
O
D.
49
9
Answer:
A: -41/9
Step-by-step explanation:
Substitute the point (4, -5) and slope -1/9 into the equation y = mx + b.
-5 = -1/9(4) + b
-5 = -4/9 + b
Solve for b:
b = -41/9
Our equation: y = -1/9(x) - 41/9
What is the value of k?
2k+9=7−3k
k=−2
k=−0.4
k = 2
k = 3.2
PLEASE HELP !!!!!
Hi there!
»»————- ★ ————-««
I believe your answer is:
[tex]k = -0.4[/tex]
»»————- ★ ————-««
Here’s why:
⸻⸻⸻⸻
[tex]2k+9=7-3k\\\rule{150}{0.5}\\\rightarrow 2k + 9 = 7-3k\\\\\rightarrow 2k + 3k + 9 = 7 - 3k + 3k\\\\\rightarrow 5k + 9 = 7\\\\\rightarrow5k + 9 - 9 = 7 - 9\\\\\rightarrow 5k = -2\\\\\rightarrow \frac{5k=-2}{5}\\\\\rightarrow \boxed{k = -\frac{2}{5} = -0.4}[/tex]
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
x+2y-z=5
-X-y+2z=-13
2x+y-2z=14
Answer:
[tex]x+2y-z=5 ...(1)\\ -x-y+2z=-13...(2) \\ 2x+y-2z=14...(3) \\ \\ add \: (2) + (3) \\\boxed{x= 1} \\ 2 \times (1) + (2) \\ x + 3y = - 3 \\ 1 + 3y = - 3 \\ 3y = - 4 \\ \boxed{y = - \frac{4}{3} }\\ solve \: for \: z \\ x + 2y - z = 5 \\ 1-\frac{4}{3}(2)-z=5\\3-8-3z=15\\3z=-20\\\boxed{z = - \frac{20}{3} }[/tex]
square root of 31 is between which two integers?
Answer:
5 and 6
Step-by-step explanation:
Please help me, this is due in 2 hours and I need this done plz.
Answer:
It's probably it
Step-by-step explanation:
A = (-4, -2)
B = (1, 6)
Imagine a new point (C) where they intersect (1, -2)
Now we can form a triangle, the distance between A and B will be the hypotenuse.
h² = 5² + 8²
h² = 25 + 64
h² = 89
h = [tex]\sqrt{89}[/tex]
h = ~9.43...
h = 9
The graph shows a proportional relationship between the number of cans of tennis balls and the total number of tennis balls.
What does the point (2, 6) represent in this situation?
Tennis Balls graph showing number of tennis balls on the y axis and number of cans on the x axis. A line begins at the origin and passes through the points 1 comma 3 and 2 comma 6.
Answer:
There are 6 tennis balls in 2 cans.
Answer: c and e
Step-by-step explanation:
because im smart like that
Find the coordinates of point) along the directed segment AB that partitions it so that the ratio of AP to PB is 1:2. NO LINKS OR ASSESSMENT!!!!
Answer: (1, 3)
Step-by-step explanation:
There are two ways to solve this problem, 1 without the pythagorean theorem, and 1 with it. For the sake of simplicity, I will solve it without the pythagorean theorem.
As is visually evident from the graph, the line segment spans 6 units horizontally, and 3 units vertically. Because the ratio between AP and PB is 1:2, simply divide both the domain and range by 3, to get 2 horizontally, and 1 vertically.
Then, simply go to point A and respectively add and subtract the horizontal and vertical values to get point A(-1, 4) --> P(1,3)
Hope it helps, and let me know if you want me to solve it an alternate way or go more in depth as to the way it is know.
Answer:
P(1, 3)Step-by-step explanation:
Coordinates of A and B:
A(-1, 4), B(5, 1)The partition ratio:
AP/PB = 1/2Coordinates of P are:
x = -1 + 1/3(5 - (-1)) = -1 + 6/3 = 1y = 4 + 1/3(1 - 4) = 4 - 3/3 = 3We expect that students who do well on the midterm exam in a course will usually also do well on the final exam. Gary Smith of Pomona College looked at the exam scores of all 346 students who took his statistics class over a 10-year period. The least-squares line for predicting final-exam score from mid-term exam score was γ=46.6 + 0.41x.
Octavio scores 10 points above the clas mean on the midterm. How many points above the class mean do you predict that he will score on the final. (Hint: what is the predicted final-exam score for the class mean midterm score of x-bar?) This is an example of regression to the mean, the phenomenon that gave "regression" its name: students who do well on the midterm will on average do less well on the final, but still above the class mean.)
Using the model equation, the predicted mean score on the final given a score of 10 points above the class mean in the mid term exam is 50.7
The Least - Square Regression equation which models the relationship between midterm and final exam score is :
γ=46.6 + 0.41xx = 10 points ; substitute the value of x = 10 into the regression equation ;
γ=46.6 + 0.41(10)
γ=46.6 + 4.1
γ = 50.7
The number of points above the mean he'll score in the final exam is predicted to be 50.7
Learn more :https://brainly.com/question/18405415
when f(x) is greater than 0
Answer:
Step-by-step explanation:
Enter the data as given, on the sample Form 1040EZ below. (Do not enter dollar signs or commas.)
Enter a social security number. It is 039-29-7319.
Enter 000-00-0000 for Spouse's Social Security Number
On line 1 enter $5,000.00
On line 2 enter $50.00.
On line 4 enter the total of line 1 plus line 2.
On line 5 put an "x" at yes and enter one zero.
On line 6 enter the total from line 4.
On line 7 enter $757.50
On line 10 enter $5,050 x 0.15 = 757.5
On line 11a enter line 7 minus line 10.
On line 12 enter line 7 minus line 10.
Type "John" in the signature box. (Your name would normally go here.)
9514 1404 393
Explanation:
Of course, copying the form is the same as following the instructions telling you how to fill in the form.
Line 4 is the sum 5000 +50 = 5050.
Lines 11a and 12 are the difference 757.50 -757.50 = 0.
The decimal form of (-104)/5 is ____________
Step-by-step explanation:
4.5×10 5 =450000
hope it will help you
EASY PLEASE HELP HELP
Write the scale without units: 1 cm:1 km
Answer:
1:1
Step-by-step explanation:
thats how you write scale
mark brainliest pls
Find the constant of proportionality
when x = 2 and y = 1.5
Step-by-step explanation:
y=kx
1.5=k×2
1.5/2=k
15/2×10=k
3/2×2=k
3/4=k
0.75=k.
Solve for in terms of A and w. A=w
Answer:
Step-by-step explanation:
Given A = w:
w in terms of A is w = A, and
A in terms of w is A = w
Suppose there is a 1.2 drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on the ground is 57.8, what will be the temperature when the plane reaches an altitude of 7000?
Answer:
ysgsvdbdbdjdnd dndjdnd
The ratio of dogs to cats at the animal shelter is 4:5. if there are 20 cats, how many dogs are there?
Answer:
Ratio of cats to dogs is 4:5
Step-by-step explanation:
There are 20 dogs.
4:5=x:20
(5)(4)=20
(4)(4)=16
Answer: 16 cats
You can find the number of cats by using proportion
7. The new York Volleyball Association
invited 64 teams to compete in a tournament.
After each round, half of the teams were
eliminated.
How many teams are left after 3 rounds?
Using a geometric sequence, it is found that after 3 rounds, 8 teams are left.
In a geometric series, the quotient between consecutive terms is always the same, and it is called common ratio q.
The general equation of a geometric series is given by:
[tex]a_n = a_1q^{n-1}[/tex]
In which [tex]a_1[/tex] is the first term.
In this problem:
64 teams were invited, thus [tex]a_1 = 64[/tex].After each round, half the teams are eliminated, thus [tex]q = \frac{1}{2}[/tex].The number of teams after 3 rounds is the 4th term of sequence, as the first is the initial number(0 rounds), thus:
[tex]a_n = a_1q^{n-1}[/tex]
[tex]a_4 = 64\left(\frac{1}{2}\right)^{4-1}[/tex]
[tex]a_4 = 8[/tex]
After 3 rounds, 8 teams are left.
A similar problem is given at https://brainly.com/question/25317689
Type the missing number in this sequence:
16, 7, __, -11, -20
-2
The difference between 16 and 7 is 9 and the difference between-11 and -20 is 9 as well meaning that the numbers go down in 9
therefore 7-9 is -2
Hope this helped you- have a good day bro cya)
Choose all options that apply. In the US Customary System, which of the following terms is used to measure volume? a) Cup b) Tablespoon c) Liter d) Fluid ounce
Answer:
D) Fluid ounce
Step-by-step explanation:
Fluid ounces are a unit used to measure volume, or how much space something takes up. This measurement is used for liquid ingredients, like water or milk. When a recipe calls for fluid ounces, go ahead and pull out your measuring cup; it's the most accurate way to measure this.
I hope this helps, and stay safe!! :)Answer:
A and D because yeah its right
8. If a vehicle is moving at a constant speed of 60 miles per hour, how many
miles will it travel in 1 hour and 20 minutes?
(A) 60
(B) 65
(C) 80
orden des
(D) 90
e are !
105 area o
Answer:
C. 80 miles.
Step-by-step explanation:
20 minutes is 1/3 of an hour so it travels 60 * 1/3 = 20 miles in 20 minutes.
Which pair of angles are supplementary?
Answer:
1 and 7
Step-by-step explanation:
supplementary means that they add up to 180º
1,3 5,6 1,7
2,4 7,8 2,8
1,2 5,7 3,5
3,4 6,8 4,6
There are still some more but my hands are tired of typing.
Answer:
A: 1 and 7
Step-by-step explanation:
when 2 angles are put next to each other on a straight line with a line going through the middle those two angles always add to 180 since 180 is equal to a straight line.
supplementary angles are 2 angles that together make 180.
out of the options given, all of them except 1 and 7 are equal angles and as a result would not add to 180. if you put angles 1 and 7 on a straight line together, they do, thus the answer is A, aka 1 and 7.
3x−(2x+1) simplify the expression
[tex]3x - (2x + 1) \\ = 3x - 2x - 1 \\ = x - 1[/tex]
Answer:x - 1
Answer: x-1
Step-by-step explanation: in the picture
A model of a population of a small country is 35,000(1.03)^x. Find the current population if x equals four years since the last census.
Based on the model of the population and the amount of years that have passed, the current population is 39,393 people.
The model of the population is:
= 35,000 x (1.03)^ x
If x is 4 years, slot this into the model to get:
= 35,000 x 1.03⁴
= 35,000 x 1.12550881
= 39,393 people
In conclusion, the current population is 39,393 people.
Find out more at https://brainly.com/question/1232096.
Help please for brainliest
Answer:
C
Step-by-step explanation:
a quadratic polynomial has an x² term
a binomial has 2 terms
leading coefficient is the coefficient of the term with largest exponent
4x² - 8x
is a quadratic (x² term )
is a binomial ( has 2 terms )
has a leading coefficient of 4 (4x² )
Find the rate of change demonstrated in the graph below.
The rate of change of a graph, is the slope of the graph.
The rate of change of the graph is 4.5
The points on the graph are:
[tex]\mathbf{(x,y) = (2,9) (4,18)}[/tex]
So, the slope (m) is calculated as:
[tex]\mathbf{m = \frac{y_2 - y_1}{x_2 - x_1}}[/tex]
This gives
[tex]\mathbf{m = \frac{18 - 9}{4-2}}[/tex]
[tex]\mathbf{m = \frac{9}{2}}[/tex]
[tex]\mathbf{m = 4.5}[/tex]
Hence, the rate of change of the graph is 4.5
Read more about rates at:
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3. A company that makes scarves has many
different styles and colors that people can order.
The company keeps track of the number of each
style/color combination they make and the
average sale price for the scarves having that
combination. They create a scatter plot using the
data with the number of scarves along the x-axis
and the average price per scarf, in dollars, along
the y-axis.
The data in the graph suggest a linear
relationship. Which of the following could
represent the regression equation? (2 pt)
Answer: y=−0.004x+5
Step-by-step explanation:
Please help me asappp
Members of a softball team raised $1319.25 to go to a tournament. They rented a bus
for $776.50 and budgeted $41.75 per player for meals. Write and solve an equation
which can be used to determine p, the number of players the team can bring to the
tournament. Giving 100 points please help
Answer:
13 players
Step-by-step explanation:
Money Raised=RentedBus+Meals
1319.25=776.50+41.75p (p is for the number of players)(Now we solve for x)
Subtract 776.50 from both sides: 542.75=41.75x
Divide both sides by 41.75: 13=x
Remember that x is for the number of players so there'll be 13 players going to the tournament.
Answer:
1319.25=776.50+41.75p
13 players
Step-by-step explanation:
PLZ HURRY IM TIMED and no silly answers
Malia split up the large container of salsa that she bought equally into 5 bowls to place around her house for the party. If each bowl contained 8.5 ounces of the salsa, which shows the correct equation and value of x, the total amount of salsa in the original container?
StartFraction x over 5 EndFraction = 8.5; x = 1.7 ounces
StartFraction x over 5 EndFraction = 8.5; x = 42.5 ounces
5 x = 8.5; x = 1.7 ounces
5 x = 8.5; x = 42.5 ounces
Step-by-step explanation:
I would say 5 x= 8.5; x = 42.5 ounces that's my guess
Pablo mixes 3 units white paint and 1 unit black paint to make gray paint
Answer:
Whats the Question?
Step-by-step explanation: