Answer:
What is the average time it took the car to travel 0.25 meters?
2.23 secondsWhat is the average time it took the car to travel 0.50 meters?
3.13 secondsI hope is work you!!
(1) The first velocity of the car with two washers at the 0.25 meter mark is 0.125 m/s.
(2) The second velocity of the car with two washers at the 0.5 meter mark is 0.25 m/s.
What is velocity?Velocity is the rate of change of displacement with time. The velocity of the cars depends on displacement and time of motion.
First velocity of the car at the 0.25 meter markThe first velocity is calculated as follows;
v1 = 0.25 m / t1
let t₁ = 2 s
v₁ = 0.25/2
v₁ = 0.125 m/s
Second velocity of the car at the 0.5 meter markv2 = 0.25 m / (t2 – t1)
let t₂ = 3 s
v₂ = 0.25(3 - 2)
v₂ = 0.25 m/s
The complete question is below:
Calculate the first and second velocities of the car with two washers attached to the pulley, using the formulas
v1 = 0.25 m / t1, and
v2 = 0.25 m / (t2 – t1)
Learn more about velocity here: https://brainly.com/question/6504879
A system of equations is graphed on a coordinate plane.
Which coordinates are the best estimate of the solution to the
system of equations?
A (2, 3)
B (1, 2)
C (2, 2)
D (2, 4)
hi! im quite confused on this. can someone please help me? ill give brainiest if youre correct :)
Answer:
I believe the answer is D
Step-by-step explanation:
after 3 hours it traveled 120 miles so divide that by the 3 hours and it gives you 40 miles per hour giving you the slope and the y int would be negative 300 because he started 300 miles aways from Denver
Answer:
The answer seems to be D
Step-by-step explanation:
I cannot really confirm but I am most certain it is D.
Find the measure of the angle indicated and show work please help I need this soon
To pass a quiz, students need a score of at least 32 points out of a total of 40 points. At least what percent do the students need to pass the quiz
Answer:
80%
Step-by-step explanation:
Hope this helps :)
PLEASE HELP!!!!
Which expression is a simplified form of
[tex]3x^{2} - 4x + 5 - x^{2} + 2x - 1[/tex]
[tex]a) \: 2x^{4} - 2x^{2} + 4 \\ b) \: 2x^{4} + 6x^{2} + 4 \\ c) \: 2x^{2} - 2x + 4 \: \: \\ d) \: 4x^{2} - 2x + 4 \: \: [/tex]
Answer: c) 2x² - 2x + 4
Step-by-step explanation:
The set of ordered pairs below represents a function.
{(–9, 1), (–5, 2), (0, 7), (1, 3), (6, –10)}
Josiah claims that the ordered pair (6, –10) can be replaced with any ordered pair and the set will still represent a function.
Select all ordered pairs that could be used to show that this claim is incorrect.
(–9, –6)
(1, 12)
(–10, –10)
(4, 7)
(–5, 1)
Given:
The set of ordered pairs below represents a function.
{(–9, 1), (–5, 2), (0, 7), (1, 3), (6, –10)}
Josiah claims that the ordered pair (6, –10) can be replaced with any ordered pair and the set will still represent a function.
To find:
All the ordered pairs that could be used to show that this claim is incorrect.
Solution:
We need to find the ordered pairs that can be replaced with (6,-10) and for which the set is not a function.
A relation is called function if there exist a unique output for each input.
If (-9,-6) is replaces with (6,-10), then the set has two outputs y=1 and y=-6 for x=-9. So, the claim is incorrect.
If (1,12) is replaces with (6,-10), then the set has two outputs y=12 and y=3 for x=1. So, the claim is incorrect.
If (-10,-10) is replaces with (6,-10), then there exist unique output for each input. So, the claim is correct.
If (4,7) is replaces with (6,-10), then there exist unique output for each input. So, the claim is correct.
If (-5,1) is replaces with (6,-10), then the set has two outputs y=1 and y=2 for x=-5. So, the claim is incorrect.
Therefore, the correct options are (a), (b) and (e).
help plsssssssss. cm.
does anyone have remind ill give u a code
Answer:
no
Step-by-step explanation:
no
The regular price of an item is $150. The item is on sale at a discount rate of 30%.
What is the sale price of the item?
Answer:
$105.00 is the answer subtract 45 $
Answer:
the item should cost $105
Step-by-step explanation:
its very simple just put 150 and it by 30% and its 105
150÷30%=105
Write a system of equations to describe the situation below, solve, and write as an ordered pair (with number of months as x).
Two friends, Ann and Malia, are growing out their hair. They plan to cut it off at a certain point and donate it to a charity that makes wigs for people with cancer. Ann's hair is already 23 centimeters long and grows at a constant rate of 3 centimeters per month. Malia's hair is 27 centimeters and growing at a speed of 1 centimeter per month. If the girls get their hair cut on a certain day, they will have exactly the same length to donate. How long will their hair be? How long will that take?
Step-by-step explanation:
Wyzant
ASK
ALGEBRA 1
Christina B. asked • 11/16/20
please help me i've been stuck on this question forever
Write a system of equations to describe the situation below, solve, and write as an ordered pair (with number of months as x). Two friends, Ann and Malia, are growing out their hair. They plan to cut it off at a certain point and donate it to a charity that makes wigs for people with cancer. Ann's hair is already 23 centimeters long and grows at a constant rate of 3 centimeters per month. Malia's hair is 27 centimeters and growing at a speed of 1 centimeter per month. If the girls get their hair cut on a certain day, they will have exactly the same length to donate. How long will their hair be? How long will that take?
Follow1
Add comment
More
4 Answers By Expert Tutors
By:
Best
Allen E. answered • 11/17/20
TUTOR 5.0 (131)
Patient and knowledgeble mathematics tutor
ABOUT THIS TUTOR ›
Ann's hair length: y = 23 + 3x
Malia's hair length: y = 27 + x
Thus: 23 + 3x = 27 + x
23 + 2x = 27
2x = 4
x = 2
Ann's hair length: y = 23 + 2(3) = 29
Malia's Hair length: y = 27 + 2 = 29
Solution: (x, y) = (2, 29)
In 2 months both Ann's and Malia's hair will be 29 centimeters long.
Upvote0
Downvote
Add comment
More
Erykah H. answered • 11/16/20
TUTOR 3.7 (3)
Senior at the University of Illinois looking to help how I can!
SEE TUTORS LIKE THIS
Upvote0
Downvote
Add comment
More
Lauren W. answered • 11/16/20
TUTOR 5 (2)
All ages English/Writing tutor, Kindergarten through University
SEE TUTORS LIKE THIS
Let's start with Ann's hair: 23 centimeters + 3 centimeters per month
Malia's hair: 27 centimeters + 1 centimeter per month
Now we can substitute the number of months for "x"
Ann's hair length = 23 + 3x
Malia's hair length = 27 +1x
We know that we want both girls to have the same hair length at the end so we can set these two equations as equal to each other:
23 + 3x = 27 + 1x Subtract 23 from both sides
3x = 4 + 1x Subtract 1x from both sides
2x = 4 Divide by 2
x=2 Now we know it will take 2 months for their hair to be the same length!
Let's plug that in to our original equations:
Ann's hair length = 23 + 3(2) = 29 centimeters
Malia's hair = 27 + 1(2) = 29 centimeters
It will take 2 months for the girls to grow their hair to the same length of 29 centimeters.
As ordered pairs, with x as the number of months, we can use the length of the girls hair as the y value.
At 0 months, Ann's hair is 23 cm and Malia's is 27 cm so the first ordered pairs are (0, 23) and (0, 27).
At 1 month, Ann's hair grows 3 cm and Malia's grows 1 cm so the second pairs are (1, 26) and (1, 28).
Finally, at 2 months Ann's hair is at 29 cm and so is Malia's so the final ordered pair is (2, 29) for both girls.
If you were to draw these equations on a graph, (2, 29) is where the lines would intersect.
Consider the enlargement of the triangle.
A small triangle has a base of 1.7 feet and height of 9.3 feet. A larger triangle has a base of 3.5 feet and height of x feet.
Not drawn to scale
Rounded to the nearest tenth, what is the value of x?
15.8 feet
19.1 feet
23.3 feet
32.6 feet
Answer:B 19.1 feet
Step-by-step explanation:
The value of the x is 19.1 feet.
What is ratio?"It is an ordered pair of numbers a and b, written [tex]\frac{a}{b}[/tex] where b does not equal 0."
What is proportion?"When two ratios are equal then they are said to be in proportion."
For given question,
A small triangle has a base of 1.7 feet and height of 9.3 feet.
A larger triangle has a base of 3.5 feet and height of x feet.
Since it is the enlargement of the triangle, the sides of both the triangle must be in proportion.
[tex]\Rightarrow \frac{1.7}{3.5}= \frac{9.3}{x}\\\\\ \Rightarrow 1.7\times x=3.5\times 9.3\\\\ \Rightarrow 1.7\times x=32.55\\\\ \Rightarrow x=19.14[/tex]
Therefore, the value of the x is 19.1 feet.
Learn more about the ratio and proportion here:
https://brainly.com/question/26974513
#SPJ2
solve:3x-8y=-33
solve:9x+8y=29
show work please
Answer:
for the first one: x = -25/3 or -8.333333
for the second one: x = 29-8y/9
Step-by-step explanation:
for the first one:
add 8 to both sides 3x=-33 + 8
simplify -33+8 to -25
divide both sides by 3
which gives you -25/3 or 8.333333
for the second one:
subtract 8y from both sides 9x=29-8y
divide both sides by 9
which gives you x= 29-8y/9
13 POINTS FOR WHO EVER GETS IT RIGHT!!
Evaluate 2x - 4 when x=3
Evaluate -10b + 5 when b=4
Evaluate 1/2z + 6 when z=4
Evaluate 20 - 3w when w=2
Answer:
1.) 2(3)-4=6
2.) -10(4)+5=-35
3.)1/2(4)+6=8
4.) 20-3(2)=14
Can someone help with this
Answer:
can you post the whole screen
2) It cost $5 to send 6 packages through a certain shipping company. Consider the number of
packages per dollar.
2A *
a. Find the constant of proportionality for this situation
2B - Write your answer using the decimal form of the COP and do not
enter spaces when typing your equation.
b. Write an equation to represent the relationship.
Answer:
5 divided by 6 so the proportionality
Step-by-step explanation:
Answer:
2. the unit price is 1.2
6/5=1.2
Step-by-step explanation:
i really tried plese dont be mad
Benjamin owns a food truck that sells tacos and burritos. He only has enough ingredients to make 155 tacos or burritos.Write an inequality that could represent the possible values for the number of tacos sold, tt, and the number of burritos sold, bb, that would satisfy the constraint.
Answer:
t+b_< 155
Step-by-step explanation:
i need help asap! (picture attached)
Answer: 141 i think
Step-by-step explanation:
Plz help me I need help
I'm not too sure but I think it's option
1. No, because only one angle of the triangle is congruent.
A microwave originally costs $96, but is marked up to a price of $115.20. What is
the percent increase?
Answer:
20% increase
Step-by-step explanation:
I am just talking to answer but yes I am sure
Find the distance between the points (7,5) and (7,-3)
Answer:
its eight on the y axis
Step-by-step explanation:
Solve the inequality x + 2 ≥ 8
Answer:
the answer is x ≥ 6
Step-by-step explanation:
x ≥ 8 - 2
x ≥ 6
x = 2 y − 4
7 x + 5y = −66
Answer:
x = -8
y = -2
Step-by-step explanation:
The variable x in this system of equations is already isolated. Therefore, we can substitute it into the other equation and solve for y.
7(2y - 4) + 5y = -66
14y - 28 + 5y = -66
19y = -66 + 28
y = -2
Then we solve for x
x = 2(-2) - 4
x = -8
Please HELP!!!!!!!!!!
Answer:
The answer is 17.
Step-by-step explanation:
[tex]12+\frac{k}{8}[/tex] when k=40
[tex]12+\frac{40}{8}[/tex]
12 + 5
17
Hope that helps and please give me brainliest!!
How do i do this? Explain the answer and how it is done.
Answer:
4/9ths of a cup of sugar is needed for one cup of flour.
Step-by-step explanation:
To answer this you need to scale the number of cups of flour up from 3/4 to 1 that ratio would be 4/3 (multiplying a fraction by its own reciprocal will give you 1).
We can then simply take that ratio, and scale the sugar by the same amount:
1/3 * 4/3 = 4/9
Solve for x: 90 - 3/2x < 30.
a.) >-20
b.) >-40
c.) x<-40
d.)<-20
all the < or > have a line under them
Answer:
The answer would be C, hope i helped
Step-by-step explanation:
First you have to get x by itself. So you do 90-90= 0 and 30-90= -60 which gets:
90 - 3/2x < 30 to -3/2x < -60
Then, you do -3/2 - (-3/2)= 0 and do the same to -60. -60 - (-3/2) = -58.5
which makes it look like
X = -58.5
-58.5 is a smaller number than -40 which means, when you fill it in for x it works
-58.5 ≤ -40
P.S. to put a line under the < and > you (≤ and ≥) hold option then click on which ever one you need
helppppppppppppp meeeeeeeeeeeeeeeeee plzzzzzzzzzzzzzzzzzz wrong or right?
Answer:
Yes you are right.
Step-by-step explanation:
Once you divide 128.25 by 3 you will get 42.75
Then you multiply 42.75 by 5 and you will get 213.75.
I don't understand this either what's this
Answer:
It's called a transversal lol
Step-by-step explanation:
I know that you were thinking that there should be a letter somewhere but you can't figure out the name of a line unless the name is shown lol
Pls mark Brainliest.
Write expressions for the following scenarios.
Albert, Bill and Carl are brothers.
Bill is 4 years older than Albert.
Carl is twice the age of Albert.
Write an expression for the sum of their ages.
Answer:
flaimgo/albert
Step-by-step explanation:
What is this answer?
Answer:
X intercepts (-30,0)
Y intercepts (0,-3)
why wont anybody help me i posted like 5 questons but heres the question :(
Answer:
i got you fam
Step-by-step explanation:
its b fam because the top x value goes by 1 then 2 and the y value goes from 2 to 4
