The winning time for a race are shown in the table.
Which answer describes the average rate of change from year 2 to year 4?
A) the winning time increased by an average of 0.4 second per year from year 2 to year 4.
B) the winning increased by an average of 0.8 second per year from year 2 to year 4.
C) the winning time increased by an average of 0.475 second per year from year 2 to year 4.
D) the winning time increased by an average of 0.267 second per year from year 2 to year 4.
Answers
Answer:
The winning time increased by an average of 0.4 second per year from year 2 to year 4.
Step-by-step explanation:
I just took the quiz
The winning time for a race displayed in the table would be:
A). The winning time increased by an average of 0.4 seconds per year from year 2 to year 4.
Find the increase in winning time:Given that,
Year Winning Time(seconds)
1 27.5
2 28.4
3 28.7
4 29.2
5 29.44
The total change in the time = (0. + 0.3 + 0.5 + 0.24)/4
= 0.485 seconds
If we round off, it becomes 0.5 seconds.
Therefore, it can be considered that an average of 0.5 seconds changes every year from year 2 to 4.
Thus, option A is the correct answer.
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Answer:it would have to be d because of the negative sign the sum is negative so the x would have to be
Step-by-step explanation:
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Answer:
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Give the domain and range of each relation
Answers
Children 12 and under eat free at a local restaurant. If x represents age, write an inequality to represent people who do not get a discount.
Answers
Answer:
12 ≤ x
Explanation:
Kids 12 and under, meaning that the age of someone who enters the restaurant has to be less than or equal to 12 to eat free
The inequality which represents the age of the people who do not get the discount is x > 12.
What is Linear Inequalities?Linear inequalities are defined as those expressions which are connected by inequality signs like >, <, ≤, ≥ and ≠ and the value of the exponent of the variable is 1.
Given that,
Children 12 and under eat free at a local restaurant.
Let x represents the age of the people.
Since the children who are 12 and under will get the discount, the age of the people who do not get the discount is the people with age greater than 12.
That is the inequality representing this situation is,
x > 12
Hence the required inequality is x > 12.
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what are the y-intercepts to graph the equation-4x - 3y = 36
Answers
Answer:
Y-Int = -12
Step-by-step explanation:
First, I would change the equation to slope intercept form:
-3y = 36 + 4x
3y = -36 - 4x
y = -12-4/3x
y = -4/3x - 12
-12 is the y-intercepts to graph the equation-4x - 3y = 36
What is slope intercept form of line?The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The given equation is -4x-3y=36
Now let us convert the given equation to slope intercept form y=mx+b
where m is the slope and b is the y intercept
Isolate the term y
-3y=36+4x
Divide both sides by 3
-y=36/3+4/3x
Multiply both sides by -
y=-12-4/3x
y=-4/3x-12
Slope is -4/3 and y intercept is -12
Hence, -12 is the y-intercepts to graph the equation-4x - 3y = 36
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Trigonometric Ratios and Unit Circles.
See Image Below.
Answers
Answer:
irudiwhiwhs swsw is d
Step-by-step explanation:
8349240 is your aswr 213
Which of the following values of x makes the functions equal?
y=-1x+4
y=3x
Answers
x=1
because 3 times 1 is 3
and -1 times 1 is -1 plus 4 is 3
9/2 divided by 3/4
What the answer??
Answers
Answer:
6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
[tex]\frac{9}{2}[/tex]÷[tex]\frac{3}{4}[/tex]Use the keep change flip method. Make this a multiplication equation by turning 3/4 into 4/3
[tex]\frac{9}{2}[/tex]×[tex]\frac{4}{3}[/tex]Solve.
[tex]\frac{36}{6}[/tex]Simplify
6Martha took her family out to dinner. Their total bill was $32.58. She decided to leave their server a 20% tip. How much did Martha tip the server?
Answers
Just round it and you get $6.16
So we're working on ratios and proportions in my math class. I feel attacked because my teacher specifically called me out and said- "Nya, you can do this, a little math won't hurt." So now I need help. :')
6) A pizza cost 12.00. If the sales tax is 7%, what is the final price of the pizza?
A. 12.07
B. 12.70
C. 12.84
D. 19.00
Answers
A pizza cost 12.00. If the sales tax is 7%, what is the final price of the pizza?
$12.84 or C
Have a great day! :)
Evaluate 3 to the 2nd power plus 7 times 2
Answers
Hey there!
3^2 + 7 • 2
3^2 = 3 • 3 = 9
9 + 7 • 2
7 • 2 = 14
9 + 14 = 23
Answer: 23 ☑️
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
Answer:
my
Step-by-step explanation:
PLSS HELP the length of a rectangle is 3 meters greater than 2 times the width the perimeter of a rectangle is 30 m what is the length of the rectangle
Answers
Answer:
Width: 4 meters. Length: 11 meters
Step-by-step explanation:
If you do it correctly, the length should be 3 more greater than 4*2. 4*2= 8 +3= 11. Your perimeter= 30 meters. 11+11 accounting for both long sides of the rectangle= 22. Accounting for both sides of the width, so 4*2=8 + our 22= 30 meters. Yw.
The length of the rectangle width 4 meters and length 11 meters.
If you do it correctly,
The length should be 3 more greater than
What is the perimeter of a rectangle?
P=2(l+w)
L= Length
W = Width
4*2. 4*2= 8 +3= 11.
Your perimeter= 30 meters.
11+11 accounting for both long sides of the rectangle= 22.
Accounting for both sides of the width,
So 4*2=8 + our 22= 30 meters.
Therefore we get the length of a rectangle is 11 meters.
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8. Which of the following elements would have the greatest ionization energy? Magnesium (Mg) Phosphorus (P) Argon (Ar) Sodium (Na)
Answers
Answer:
I attached the photo hoped it helped
Step-by-step explanation:
Dawn bought a winter coat at 30% off the original price. The discount on the coat was $21. was the original price of the coat? SHOW WORK
Answers
Answer:
$70
Step-by-step explanation:
21/30 = 0.7
100x 0.7 = 70
About 0.2of all the students in the fifth grade are boys. If the fifth grade has 75 students, how many of the students are ?
Answers
Answer:
15 boys
Step-by-step explanation:
About 0.2of all the students in the fifth grade are boys. If the fifth grade has 75 students, how many of the students are boys?
The number of boys can be calculated as:
0.2 × Number of fifth grade students
Number of fifth grade students = 75 students
Therefore,
The number of boys =
0.2 × 75 students = 15
The number of boys = 15 boys
How many 1/2 cup servings are in a package of cheese that contains 5 1/4 cups altogether?
Answers
Answer:
In 5 cup servings, there are 10 1/2-cup servings
In 1/4 cups, there are 0.5 1/2-cup servings
Step-by-step explanation:
In total, there will be 10.50 1/2-cup servings
A high-speed elevator can rise 480 feet in 3 seconds. Which expression represents the rate, in feet per minute, of the elevator?
Answers
1 minute = 60 seconds
60 seconds/ 3 seconds = 20
480 feet x 20 = 9,600 feet
The elevator travels 9,600 feet per minute.
Answer:
160 feet per minute
Step-by-step explanation: i am 100% sure
Please help me on this!!!!
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Answer:
670
Step-by-step explanation:
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Answer:
True, True, False, True, False for part 1
Step-by-step explanation:
Make me brainliest
Answer:true,true,false,true part one
Step-by-step explanation:
Jose bought a new car 2 years ago for $18,000. The value of his car decreased exponentially by 17% and is now
valued at about $12,400.
Solve Part A please
Answers
Answer: D
Step-by-step explanation: On the first part, if it decreases by 17% each year, that means its value is 83% of what it was. You forgot to say that the car was bought 2 years ago.
Thus, the answer is D
For the second, just use the same logic to get 18000*0.75^4
Drag the appropriate answer from the choices given into the box provided.
Allen bought 2 notebooks for $8.75 each and one
Textbook for $74.95. If the sales tax was 7%, the total
of Allen's purchase was
$83.70
$89.56
$92.45
$98.92
Answers
(1a) Do 4x and 15 + x have the same value when x is 5? How do you know?
Answers
Answer:
Yes, both have the same value ( 20) when x = 5.
Step-by-step explanation:
We have two functions:
y = 15 + x
y = 4*x
We want to see if these functions have the same value when x = 5.
Then we just need to replace x by 5 in both equations, and see if the values of y are the same
first function:
y = 15 + 5 = 20
second function:
y = 4*5 = 20
So yes, both functions are equal to 20 when x = 5.
Answer:
Yes.
Step-by-step explanation:
4(5)=20
15+5=20
QRST is a parallelogram. Find x, y, and z.
Answers
Answer:
x=5.4
y= 9
z= 11
Step-by-step explanation:
5x= 27
x= 5.4
2y-5=y+4
y=9
3z = 33
z =11
100 POINTS Which statement is true about the residual plot below?
The sum of the residuals is greater than zero.
2
A linear model is a good it for the data.
.
.
1
2
3
4
5 x
No regression model is appropriate for the data.
-1
.
.
.
-2
-3
A quadratic model is appropriate for the data.
Done
BEL
Answers
Answer:
I believe that the answer would be A linear model is a good hot for the data.
Step-by-step explanation:
Answer:
A linear model is good fit
Step-by-step explanation:
I did this
Multiply. Write your answer as a fraction or as a whole or mixed number.
2
1
3
×
2
1
2
×
1
4
=
Answers
The answer of expression is 632184, it in fraction is 1264368/2.
What is Multiplication?The adding of groups is called as Multiplication. When we multiply, the number of things in the group increases.
The combination of numbers, variables and operators is known as Expression
In the given expression multiplication or product is the operator.
213×212×14
When we multiply we get 632184.
Now we have to write 632184 in fractional form.
For this let us multiply numerator and denominator by 2.
So we get 1264368/2
and this can also we can write in mixed number.
We can write this value in fraction as 1264368/2
and we can also write in mixed number 4 632164/5.
Hence the answer as fraction is 1264368/2.
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Find the LCM for each pair of numbers. 2, 5 8, 10
Answers
What is the slope of line a?
-1/3 3 -3 1/3
Answers
If I’m correct mark me brainliest pls
Explanation: The slope is the rise over run, to find the slope you have to count the rise which is the numerator of the slope in this case it is 1 and the run is the denominator in this case it is 3. The reason the slope is positive is because the line is going up.
Hope this helps
Question 1 (1 point)
What is the value of x?
3x
3x +7
4
5x-8
o
52
7.
Ob
Oc
ما انه | با
Od
52
Answers
Answer:
x = 34
Step-by-step explanation:
nice
A TV has a listed price of $ 796-99 before tax. If the sales tax rate is 6.75% find the total cost of the TV with sales tax included
Round your answer to the nearest cent, as necessary
Answers
Answer:
$850.79
Step-by-step explanation:
Assuming "$ 796-99" meant $796.99
796.99 increase 6.75% =
796.99 × (1 + 6.75%) = 796.99 × (1 + 0.0675) = 850.786825
Determine whether the expression is a polynomial. If it is a polynomial, find the degree
and determine whether it is a monomial, binomial, or trinomial.
3y^2 – 2
Answers
Answer:
This expression is a polynomial. The largest exponent is 2, therefore, it is in the quadratic degree. It is a binomial because it has two parts: 3y² and -2.