Image of parabola with a maximum value at (1, 9), y-intercept at (0, 8) and x-intercepts at (2, 0) and (4, 0).
The graph above can be used to model a coin being tossed from a height of 8 feet in as a function of time in seconds. How long was the coin in the air?
Group of answer choices
4 seconds
1 second
9 seconds
6 seconds
Answers
Answer:
(a) 4 seconds
Step-by-step explanation:
The given point (4, 0) on the parabola tells you the answer to the question: the coin was in the air 4 seconds before its height is 0. It is no longer in the air at that point.
__
Additional comment
In order to match the rest of the problem statement, the first given x-intercept must be (-2, 0).
Related Questions
The length of two sides of triangle are 4cm and 5cm. Between what two
measures should the length of the third side fall?
Answers
Answer:
1 and 9
Step-by-step explanation:
By the Triangle Inequality Theorem, the sum of two side lengths of a triangle is always greater than the length of the third side.
In other words, in a triangle with side lengths [tex]a, b,[/tex] and [tex]c,[/tex] we always have [tex]a+b > c.[/tex]
Applying this to this question, the other side length, [tex]x,[/tex] must satisfy the following inequalities:
[tex]4+5 > x,\\x+5 > 4,\\x+4 > 5.[/tex]
Solving these inequalities gives
[tex]x < 9,\\x > -1,\\x > 1.[/tex]
Combining these solutions, we have [tex]1 < x < 9.[/tex] Therefore, the length of the third side falls between 1 and 9.
GIVING BRAINLIEST FOR BEST ANSWER!
Solve the equation using fraction models.
2 3/4 - 1 1/2 = ____
Answers
Answer:
1 1/4
Step-by-step explanation:
2 - 1 = 1
1/2=2/4
3/4-2/4=1/4
Answer:
here's the answer:[tex]1 \frac{1}{4}[/tex]
Step-by-step explanation:
it actually equals to (2-1)+([tex]\frac{3}{4}[/tex] + 1/2) which,[tex]\frac{1}{2}[/tex] =[tex]\frac{2}{4}[/tex] now that the denominator is in common so we can subtract 1 + 1/4 =1 [tex]\frac{1}{4}[/tex]
PLease help it is discount math i thought i did it right but i didnt so please help
Answers
Answer:
82.36
Step-by-step explanation:
284 x 0.29 = 82.36
Have an amazing day!
PLEASE RATE!
Answer:
Step-by-step explanation:
Alright, so the answer is $400. So we know that $284 is a discount on the whole price, 29% off. So 284 is 71% of the whole price, 100%-29%=71%. So then I just divided 284 by 71 and got 4. 284/71=4. Because I divided it by 71, $4 is 1% of the whole price, so I multiplied 4 by 100 and got $400 as the original price. You can just do this equation with any type of calculator, also please select my answer as the brainliest.✌
What is the best estimate for this sum?
1/4+2/7
The sum will be close to 1/4.
The sum will be close to 1/2.
The sum will be close to 1.
Answers
Answer:
The sum is close to 1/2
Step-by-step explanation:
1/4 = 7/28
2/7 = 8/28
7/28 + 8/28 = 15/28
14/28 = 1/2 and 15/28 is close to 14/28
This is because because if we make the expression into a decimal it would be 0.53571428.. and many other numbers. If you make 1/4 into a decimal it will be 0.25 which is not close to the other number. Where-as if we made 1/2 into a decimal it would be 0.5 which would be the closest. Hope this helps
PLSSS HELP 25 points for right answer and Brainiest
Which equation has (100, –100) as a solution?
A. y = 0.1x – 99
B. y = – x – 100answer
C. y = x
D. y = –x
Answers
Answer:
D
Step-by-step explanation:
Ok so you just need to plug in the points
A. -100= 0.1(100)-99 (FALSE)
B. -100= -100-100 (FALSE)
C. -100= 100 (FALSE)
D. -100= -(100) (TRUE)
Why did I plug in the numbers? Because its (x,y) meaning 100=X and -100=Y. So just plug them in to know the correct answer.
the equation y=8.4x represents a proportional relationship.what is the constant of proportionality
Answers
I need y'all help so bad
Answers
Answer:
30, 15, 50, 20
Step-by-step explanation:
I gotchu
median is found by doing this;
(see first image)
So, for data set A, it would be:
*Btw im assuming the numbers are the same on both data sets since there is the same amount of lines in each and the same space btwn the lines*
10,10,20,20,20,30,30,30,30,40,40,50
Median is: 30
Iqr is found by doing this:
(see second image)
So for data set A, it would be:
IQR:15
---------------------------------------------------------
Set B(same thing)
Median:
30,40,40,40,50,50,50,50,60,60,70,70
Median is: 50
IQR: 20
That should be all! Let me know if I'm correct ;)
help with these 3 questions..
Answers
#1
Lies in 1st and image in 4th quadrant.
Total rotation quadrant=4-1=3
Rotation angle=3(90)=270° and 360-270=90°Reflection
#2
Total rotation=3-1=2
Rotation angle=2(90)=180°Symmetrical or linear
#3
One quadrant shift
Rotation angle=90°TranslationalPlease help
The formula to find the volume of a cube can be written as V = s to the 3rd power.
The length of the side of a square of one cube is 5 in. what is the total volume?
Answers
Answer:
125 cubic inches
Step-by-step explanation:
5x5x5=25×5=125
Answer:
125 in cubed
Step-by-step explanation:
5 to the 3rd power is 125
The speed of 10 cars on a certain highway stretch was recorded below. If the mean of the data is 63.2 with a standard deviation of 6.2, circle all data values with a z-score less than 0.5.
{49, 58, 60, 63, 64, 64, 65, 67, 70, 72}
Answers
Answer:
58
Step-by-step explanation:
58 is the answer.
HELP PLEASE??????????????
:)
Answers
Answer:
32
Step-by-step explanation:
-9 + 1 = -8
-4 x -8 = 32
HURRY
Which ordered pair is not a solution of the linear equation shown?
y= 1/2x
A. (2, 1)
B. (1, 1/2)
C. (4, 8)
D. (–2, –1)
Answers
PLEASE HELP DUE DATE IS 12 AND ITS 10!!!!
Answers
Answer:
nah
Step-by-step explanation:figure it out ur self
I’d you have this question:
A line graph shows quantity demanded on the x-axis from 0 to 30 and price in dollars from 0 to 25. A line labeled D starts at point (5,25) and decreases to point (25,5). Other points appear between. A line labeled D subscript 1 starts at point (7,22.5) and decreases to point (27,2.5). Other points appear between. A line labeled D subscript 2 is not visible, but there is an arrow pointing left for this line. An arrow points right for line D subscript 1. If the demand curve shown above shifts to the right then the __________. A. price increased B. demand increased C. price decreased D. demand decreased
The answer is B
Answers
Answer:
yes it is b tysm!
Step-by-step explanation:
Answer:
it is not b
Step-by-step explanation:
Which is the BEST definition of dilation?
A. a transformation that spins an object in the coordinate plane
B. a transformation that either reduces or enlarges an object in the coordinate plane
C. a transformation that flips an object in the coordinate plane
D. a transformation that either slides or shifts an object in the coordinate plane
Answers
Answer:
B
Step-by-step explanation:
The definition of dilation is the size of an object/ shape by increasing/ decreasing its dimensions by scaling factors
Answer :B. a transformation that either reduces or enlarges an object in the coordinate plane
Step-by-step explanation: di·la·tion is the action or condition of becoming or being made wider, larger, or more open.
1 3/7 x 2 3/4
1. 2 9/28
2. 2 13/14
3. 3 13/14
4. 3 9/28
Answers
A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The test results (expressed as a percent) for the two groups are shown below.
Studied: 88, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 84
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89
Calculate the range and interquartile range for each set of data.
Using complete sentences, compare the data sets based on your results in part A.
ANSWER TO QUESTION
Part A
Studied : 79, 83, 84, 88, 89, 89, 91, 92, 93, 94, 95, 95, 96, 99, 100, 100, 100, 100
Range : 21
Interquartile range : 99.5 - 89 = 10.5
Did not study : 45, 58, 65, 72, 73, 77, 82, 83, 87, 89, 90, 91
Range : 46
Interquartile range : 89 - 65 = 24
Part B
The students that claimed to study had a lower range and interquartile than the students that did not study. Range difference between the students that did not study vs the students that did study, 46 > 21. Interquartile range difference between the students that did not study vs the students that did, 24 > 10.5.
Answers
Answer:
I think you're correct
Step-by-step explanation:
i dont know what you want us to di
HELP ASAP!!! WILL GIVE BRAINLIEST
Answers
Answer:
the answer should be 27
Step-by-step explanation:
Refer to your Expeditions in Reading book for a complete version of this text.
Barton is remembered for her contributions during the Civil War.
Which three details should be included in a summary of Barton’s contributions?
Barton earns permission to join the army and provides supplies to soldiers in the field when supply wagons cannot get through.
She speaks in cities around the country to talk about the Red Cross and to encourage others to become involved.
She works with doctors treating the wounded on the front lines and expects to be treated the same as male soldiers.
Barton convinces the army to set up aid stations near every battlefield so wounded soldiers can receive immediate medical care.
Answers
Answer:
The 3rd one, The 1st one and The last one.
Step-by-step explanation:
Answer: She works with the doctors treating the wounded on the front lines and expects to be treated like the same as the male soldiers.
Barton convinces the army to set up aid stations near every battlefield so wounded soldiers can receive immediate medical care. Barton earns permission to join the army and provides supplies to soldiers in the field when supply wagons cannot get through.
Step-by-step explanation: i took the test
Part B
Dario decides to take each one of the 4 pieces and share it equally among the 5 of them. First, he divides one piece into 5 equal parts and shares it, then the next one, and so on.
What fraction of the party size sub did each person get after all the parts were shared out? Briefly explain your reasoning
Answers
Answer:
1.25
Step-by-step explanation:
Which expression is equivalent to –3(y–6)?
Answers
Solution:
It should be noted:
To simplify the distributive property, multiply the outside term with all the terms inside the bracket.Simplifying the distributive property.
-3(y - 6)=> (-3 x y) + (-3 x -6)=> -3y + 18 (Option C)Answer:
The last one, (-6y) times -3, the reason is because its just this expression but backwards
Edit this is wrong its C my bad, i read it so wrong
Solve: 80 ≥ -8(w - 8)
ANSWER CHOICES:
1. w ≥ -2
2. w > -2
3. w < -2
4. w ≤ -2
Answers
Answer: w>-2
Step-by-step explanation
help me please please please
Answers
Answer:
172,438
Step-by-step explanation:
The number of total doctors should be a bigger number than the number of female doctors.
Let x = the total number of doctors
x • 28.3% = 48800
Change the % to a decimal for the calculations.
.283x = 48800
Divide by .283
x = 172438
The total number of registered doctors is 172,438
How many quarts are in 814 gallons?
Note: 1 gallon = 4 quarts
A. 2 1/8 qt
B.16 1/2 qt
C.33 qt
D.66 qt
Answers
Step-by-step explanation:
answer is D
but I am confuse it can be 3256 .cuz 1galllon =4 quarters. now 814 x 4 = 3256
what must happen to make harvesting electricity possible??
Answers
Answer:
i would say c
Step-by-step explanation:
16.2 is what percent of 90?
18%
14.6%
90%
16%
Answers
Answer:
18%
Step-by-step explanation:
Step 1: We make the assumption that 90 is 100% since it is our output value.
Step 2: We next represent the value we seek with x
Step 3: From step 1, it follows that 100%=90
Step 4: In the same vein, x%=16.2
Step 5: This gives us a pair of simple equations:
Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have
Step 7: Taking the inverse (or reciprocal) of both sides yields
Therefore, 16.2 is 18% of 90
Answer:
16%
Step-by-step explanation: If its 16.2 out of 90 its %16 bc the .2 is not more than 5
Pls help due tomorrow
Answers
Answer:
32 + 63 = 95
180(all triangle angles add up to 180) - 95 = 85
Step-by-step explanation:
Check it yourself. It’s pretty easy. :)
Help!!!!!!! image below.
Answers
I think it’s right if not sorry
HELP BRAINLIEST PLUS 25 POINTS
A. (2, 6) and (3, 0)
B. (6, 2) and 3, 0)
C. (6, 2) and (0, 0)
D. (2, 6) and (0, 0
Answers
Pls mark me as the Brainliest!!!ty
Have a good day :)
Answer:
B
Step-by-step explanation:
Slope formula:
[tex]\mathsf{slope=\dfrac{(y_2-y_1)}{(x_2-x_1)}}[/tex]
where [tex]\mathsf{(x_1,y_1)}[/tex] and [tex]\mathsf{(x_2,y_2)}[/tex] are points on the line
A.
[tex]\mathsf{slope=\dfrac{(0-6)}{(3-2)}=-6}[/tex]
B.
[tex]\mathsf{slope=\dfrac{(0-2)}{(3-6)}=\dfrac23}[/tex]
C.
[tex]\mathsf{slope=\dfrac{(0-2)}{(0-6)}=\dfrac13}[/tex]
D.
[tex]\mathsf{slope=\dfrac{(0-6)}{(0-2)}=3}[/tex]
website sells popular books in hardcover, paperback, and digital form. The paperback version of a book sells for 12 dollars less than the hardcover version, and the digital version sells for half the price of the paperback copy.
The website adds a finance charge equal to 1/10 of the price of the hardcover version to all purchases.
Which expressions represent the total cost of the digital version of a book if the hardcover price is h dollars?
Answers
Answer:
The answer is
H - P - 12 D 1/2 x .10 times H