Answers
Answer:
First, let's define acceleration.
Acceleration defines how the velocity changes, and remember that velocity is a vector.
Then V = 10 m/s and V' = -10m/s are clearly different, while the speed is the same, one describes motion in one direction and the other describes motion in the opposite direction.
Where speed is the absolute value of the velocity:
S = IVI = I10 m/sI = 10 m/s
S' = IV'I = I-10 m/sI = 10m/s
If you have positive velocity and positive acceleration, then your velocity increases (meaning that your speed increases)
if you have positive velocity and negative acceleration, then your velocity decreases (meaning that your speed decreases)
if you have negative velocity and positive acceleration, then your velocity increases (meaning that your speed decreases)
if you have negative velocity and negative acceleration, then your velocity decreases (meaning that your speed increases)
Now, if you are in a freeway with no traffic, your velocity may be larger than 30 m/s (here we assume that you move in the positive direction, then your velocity is positive)
Then you see the sign, and you know that you need to decrease your velocity, meaning that you need to have negative acceleration until your velocity is 30 m/s or lower.
Concluding, the acceleration will be opposite to the direction of the velocity.
Related Questions
6. Sales associates at a local clothing
store earn a 2% commission on the
clothes they sell. If an associate earned
$50 in commission, what was the value
of her sales? Explain how you can
check your answer.
ANSWER QUICK PLZ
Answers
Answer:
jdnendndnndhehehrhejejrjrhrh
Step-by-step explanation:
fndndbdhdhdhddhdhdhcfbbdbddbdbdbd
hello hello hi good day?
HELP PLZ DUE RN BRAINIEST TO WHOEVER RIGHT
Answers
A=1
B=-5
C=3
-(-5)+(Square root of) (-5)^2+4(1)(3)/2(1)
-(-5)-(Square rooy of) (-5)^2+4(1)(3)/2(1)
5.5414 or -.5414
Can someone please help me with this question
Answers
Hope this helps
The box plot summarizes the data for the number of minutes it took to serve customers at a restaurant.
Use the box plot to complete each statement.
1. What is the shortest time it took to serve a customer?
2. What is the longest time it took to serve a customer?
3. What is the median time it took to serve a customer?
4. What is the first quartile of the restaurant service times?
5. What is the third quartile of the restaurant service times?
Answers
Answer:
1) 19
2) 41
3) 25
4) 22
5) 37
Step-by-step explanation:
The Answers from the box plot are:
1) 19
2) 41
3) 25
4) 22
5) 37
What is Box plot?An illustration of variation in a set of data is called a box and whisker plot. A histogram analysis usually gives an adequate display, but a box and whisker plot can add more detail while enabling the display of different sets of data on the same graph.
Given:
From the Box plot we can write
1.The shortest time it took to serve a customer from the box plot is 19.
2. The longest time it took to serve a customer is 41.
3. The median time it took to serve a customer is 25.
4.The first quartile of the restaurant service times is 22.
5. The third quartile of the restaurant service times is 37.
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Fifty people went to see two different movies. Forty people saw Movie A and twenty people saw both Movie A and Movie B. How many people saw Movie B? PLEASE HELP
A. 10
B. 20
C. 30
D. 40
E. 50
Answers
Answer:
5
Step-by-step explanation:
La probabilité d'un évènement A ne se réalise pas est 3/7 donc:
- P(A) = 3/7 - P(A) = 4/7
- P(A) = 4/10
- P(A) = 7/4
Answers
Answer:
P(A) = 4/7.
Step-by-step explanation:
Probability it does not occur = 3/7 so probability it does is 1 - 3/7.
P(A) = 1 - 3/7 = 4/7.
if one jar of jalapeños cost $2, how much will 7 jars cost? can somone help me do this step by step?!:)))
Answers
Answer:
14
Step-by-step explanation:
Divide R125 in the ratio of 2:3
Answers
Answer:
50:75
Step-by-step explanation:
2+3=5
125/5=25
25*2=50
25*3=75
50:75
Hope this helped! :)
In parts (a) through (e) below, mark the statement True or False. Justify each answer.
(a) In some cases, a matrix may be row reduced to more than one matrix in reduced echelon form, using different sequences of row operations.
Is this statement true or false?
A. The statement is false. Each matrix is row equivalent to one and only one reduced echelon matrix.
B. The statement is false. For each matrix, there is only one sequence of row operations that row reduces it.
C. The statement is true. It is possible for there to be several different sequences of row operations that row reduces a matrix.
D. The statement is true. The echelon form of a matrix is alwaysunique, but the reduced echelon form of a matrix might not be unique.
Answers
Answer:
The correct option is option A
A. The statement is false. Each matrix is row equivalent to one and only one reduced echelon matrix
Step-by-step explanation:
The matrix in echelon form is not in a unique form, as such row reduction can yield an infinite amount of answers. However a row reduced echelon form is unique and will give the same answer in every order that the row operation is performed
The statement is false. Each matrix has only one unique row echelon form, therefore, the correct option is option A.
Shirt is $45 but is on sale for 20% off. What is the discount
Answers
Answer:
$15 dollars off so the original price is $60!!!
Step-by-step explanation:
Answer:
$36
Step-by-step explanation:
45 x 0.20
= 9
Total price - sale
= 45 - 9
= 36
given f(x) = X^2 – 5x + 6 state discriminant # of solutions
Answers
what is the sum of the following equation? 16/100
a. 10/100
b. 22/100
c. 36/100
d. 76/100
Answers
Answer:
0.76
[tex]\frac{19}{25}[/tex]
Step-by-step explanation:
Answer:
D) 76/100
Step-by-step explanation:
16/100 + 6/10 = ?
16/100 + 60/100 = ?
16/100 + 60/100 = 76/100
( 2x + 5 ) + ( 3x - 7
Answers
Answer:
5x-2
Step-by-step explanation:
2x+3x=5x
5-7=-2
Answer:
5x+-2
Step-by-step explanation:
(2x+5) + (3x-7)
2x+3x=5x
5-7=-2
5x-2
Can someone please help!!! i really need it
Answers
Answer:
Step-by-step explanation:
6. 8
7. 21
8. 18
an mark obthe meatin by 9 students of class 6 in exam is 50 among them the mark obtain by 8 student are 60, 40, 50, 30, 80, 40, 45, and 40 what is the mark of remaining 1 student
Answers
Answer: 65
Step-by-step explanation:
Since the mean mark of the 9 students is 50. Their total marks will be:
= 9 × 50
= 450
Since the marks obtained by 8 students are given, we add the marks together and this will be:
= 60+40+50+30+80+40+45+40
= 385
The score of the 9th student will be:
= 450 - 385
= 65
PLEASE HELP ASAP I WILL GIVE BRAINIEST AND LIKE IF CORRECT!!! This is my 3 time reposting.
The graph shows the amount of money you are saving for a computer.
what is the slope? interpret the slope of the line in the context of the problem.
Answers
tell me if i’m right
Megan and Devon are working together in science class to build a terrarium for an herb garden. The plan for the terrarium, with some dimensions in centimeters (cm), is shown here. What is the volume of the terrarium?
27,000 cubic centimeters because 30 x 30 x 30 = 27,000
54,000 cubic centimeters because 30 x 30 x 60 = 54,000
81,000 cubic centimeters because 30 x 30 x 30 + 30 x 30 x 60 = 81,000
48,600,000 cubic centimeters because 30 x 30 x 30 x 30 x 60 = 48,000,00
Answers
Answer:
The answer would be 81,000
Step-by-step explanation:
Answer:
The answer is 81,000
Step-by-step explanation:
If you multiply 30x30x30+30x30x60=81,000
A company makes cones out of solid foam. Each cone has a height of inches, and its base has a radius of inches. How much foam is needed to make cones? Use for , and do not round your answer.
Answers
Answer:
[tex]Amount = 55440in^3[/tex]
Step-by-step explanation:
Given [Missing piece]
[tex]h = 9in[/tex] --- height
[tex]r = 7in[/tex] --- radius
[tex]n = 120[/tex] --- number of cones
Required
How much foam for 120 cones
First, calculate the volume of 1 cone
[tex]V = \frac{1}{3}\pi r^2h[/tex]
[tex]V = \frac{1}{3} * \frac{22}{7} * 7^2 * 9[/tex]
[tex]V = \frac{1}{3} * 22 * 7 * 9[/tex]
[tex]V = 22 * 7 * 3[/tex]
[tex]V = 462in^3[/tex]
So, the amount of foams needed for 120 is:
[tex]Amount = 120 * V[/tex]
[tex]Amount = 120 * 462in^3[/tex]
[tex]Amount = 55440in^3[/tex]
Please help. I don't have much time.
Answers
I need help, find the area
Answers
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 45.5
Explanation:
5 x 7 x 1/2 = 17.5
18 x 7 x 1/2 = 63
63 - 17.5 = 45.5
I hope this helped!
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- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer:
45.5
Step-by-step explanation:
I assume you need the area of the shaded triangle.
area = base * height / 2
A = 13 * 7 / 2
A = 45.5
Juan has a dog, a horse, a bird, and a cat. Their names are Bo, Cricket, K.C. and Tuffy. Tuffy and K. C. cannot fly or be ridden, The bird talks to Bo. Tuffy runs from the dog. What is each pet’s name?
Answers
Answer:
Dog - K.C.
Horse - Bo
Bird - Cricket
Cat - Tuffy
The solution is
The name of the dog = K.C.
The name of the horse = Bo
The name of the bird = Cricket
The name of the cat = Tuffy
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A can be calculated as
The species of pets in set A = { Dog , Horse , Bird , Cat }
The names of the pets in set B = { K.C. , Bo , Cricket , Tuffy }
The expressions are
Now , Tuffy and K. C. cannot fly or be ridden
So , Tuffy and K.C. are either the cat or the dog
And , Tuffy runs from the dog
So , Tuffy is the cat and K.C. is the dog from the expression
The bird talks to Bo , so Bo is not the bird
So , from the expression , we get
Therefore , the name of the horse is Bo and name of the bird is Cricket
Hence ,
The name of the dog = K.C.
The name of the horse = Bo
The name of the bird = Cricket
The name of the cat = Tuffy
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Circle with the center at (2,4) which goes through the point (-1,0). What is the equation of that circle?
Answers
Answer:
(x-2)²+(y-4)² = 25
Step-by-step explanation:
Standard equation of a circle is expressed as
(x-a)²+(y-b)² = r²
Center = (a, b)
Radius = r
Get the radius
r² =(0-4)²+(-1-2)²
r² = (-4)²+(-3)²
r² = 16 + 9
r² = 25
Centre = (2, 4)
Substitute into the equation
(x-2)²+(y-4)² = 25
This gives the required equation
Someone help plz I only have 5 questions and plz make sure it’s right :)
Answers
Answer:
That question is easy you can use simple logic for this no math needed the answer is B 4.2mi if you need a reason why it is i will provide one
Step-by-step explanation:
9. (06.04 LC) The equation of the line of best fit of a scatter plot is y = -3x + 2. What is the slope of the equation? (5 points)
A. -3
B. -2
C. 2
D. 3
Answers
Answer:
A) -3
Step-by-step explanation:
the coefficient of the 'x' term represents the slope
Help me please I don’t know this
Answers
sorry if it is incorrect.
I need help plzzzzzz
Answers
Please help me with this question
Answers
How do you write a linear equation that relates the height of a bunny hop to the weight of the bike. X is weight, y is height in inches. (19,10.2) (21,9.8) (23,9.4)
Answers
Answer:
y= -0.2x+14
Step-by-step explanation:
you have to do y2-y1/x2-x1 of any two coordinates or points so you could do 9.8-10.2/21-19 then you get -0.4/2 and that equals -0.2 so -0.2 is now ur slope or M. Next you pick any coordinate like (19,10.2) and you plug that into ur y=mx+b to find the b since you have found the m already from y2-y1/x2-x1. You could do 10.2= 19(-0.2)+b once you do the algebra to solve this you get 14 as your b or y intercept
In the figure shown, what is the measure of the indicated angle? °
Answers
Answer:
105 degrees
Step-by-step explanation:
Since there mus tbe 180 degrees in a triangle 180-80=100 and then -25 is equal to 75. since the line is 180 degrees, 180-75 = 105
PLEASE HELP !! EXPERIMENTAL PROBABILITY QUESTION :(
Answers
Answer:
6/10 is the answer
Step-by-step explanation:
hope it helps!!!