Answer:
0.72secs
Step-by-step explanation:
Given the height of the ball in air modeled by the equation:
h=−16t²+23t+4
Required
Total time it spent in the air
To get this we need to calculate its time at the maximum height
At the maximum height,
v = dh/dt = 0
-32t + 23 = 0
-32t = -23
t = 23/32
t = 0.72secs
Hence the total time it spend in the air will be 0.72secs
The total time for which the ball is in the air is 0.72 seconds and this can be determined by differentiating the given function.
Given :
A boy throws a ball into the air. The equation [tex]\rm h = -16t^2+23t+4[/tex] models the path of the ball, where h is the height (in feet) of the ball t seconds after it is thrown.
Differentiate the given function of height with respect to 't' in order to determine the value of 't'.
[tex]\rm h = -16t^2+23t+4[/tex]
[tex]\rm \dfrac{dh}{dt}=-32t+23[/tex]
Now, equate the above differential equation to zero.
-32t + 23 = 0
23 = 32t
t = 0.72 seconds
So, the total time for which the ball is in the air is 0.72 seconds.
For more information, refer to the link given below:
https://brainly.com/question/24062595
Is this a function? Explain with full sentence
[(2,3) (2,4) (2,5) (2,3)]
Answer:
no their is not supposed to be any repeating x's
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
Which model represents 2.36 divided by 4?
Answer:
[tex] = \frac{2.36}{4} \\ = \frac{59}{100} \\ = 0.59[/tex]
I need help with solutions
Answer:
10. b 11. b 12. b 13. a 14. b 15. b 16. a 17. a 18. b 19. a 20. a 21. b
Step-by-step explanation:
I'm pretty sure they are all right
Is 8/18 closer to 0 1/2 or 1
Answer:
Closer to 1\2
Step-by-step explanation:
half of 18 is 9 and if you add 1 to 8 you get 9 so 8\18 is closer to 1\2
Hope it helps!
Write an equation for line N
Answer:
y=x-1
Step-by-step explanation:
Could somebody pls help me with this question
Answer:
18 minutes is the answer
Step-by-step explanation:
•Time couple rested in 2 hrs = 12 min
•Time couple rested in 1 hr = 12/ 2 min = 6min
•Time couple rested in 3 hrs = 6×3 min = 18 min
HOPE IT HELPS YOU
MARK ME AS BRAINIEST
AND YOU CSN THANK ME IN THE COMMENT
please help me
thank
Answer:
D will round to 18.96
Step-by-step explanation:
18.958, 5+ will get rounded higher so it turns to 18.96, hope this helps you!
these are answers
Use the algebra tiles to model x – 3.
Then complete the statements.
The variable is represented by
✔ one orange x tile
Subtracting three is represented by
✔ three blue – tiles
.
The tiles represent
✔ subtracting 3 from
an unknown number.
yuh the answers: a, d, d, for anyone who didnt understand
Answer:
A.D.D
Step-by-step explanation:
On Edge 2022
HOPED THIS HELPED YOU OUT
Find the scale factor of PQRS to JKLM and the values of w, x, and y.
The scale factor of PQRS to JKLM is 4/5 and the values of w, x and y are 20, 12.5 and 20 respectively.
What is Scale Drawing?A scale drawing is a drawing made by enlarging or reducing the size of the original object.
The factor by which the drawing is enlarged or reduced is called the scale factor.
Given two quadrilaterals PQRS and JKLM.
Since the shape is similar, the angles are equal and thus are similar figures.
The corresponding sides of two similar figures are proportional.
Scale factor of PQRS to JKLM = QR / KL = 12 / 15 = 4/5
Using the proportional rule for similar figures,
KL / QR = LM /RS = MJ / SP = JK / PQ
15 / 12 = x / 10 = y / 16 = 25 / w
Scale factor = 15/12 = 5/4
Consider 15 / 12 = x / 10.
12x = 150
x = 12.5
Consider 15 / 12 = y / 16
12y = 15 × 16
y = 20
Consider 15 / 12 = 25 / w
15w = 12 × 25
w = 20
Hence the option d is the correct answer.
Learn more about Scale Factor here :
https://brainly.com/question/3819163
#SPJ3
Find Median in this data set
12 65 3 8 23 64 19 53 0 24 57 15 39. with explanation pls!
Answer:
23
Step-by-step explanation:
12, 65, 3, 8, 23, 64, 19, 53, 0, 24, 57, 15, 39
First put in order.
0, 3, 8, 12, 15, 19, 23, 24, 39, 53, 57, 64, 65
Eliminate each number alternating from beginning and end like so.
3, 8, 12, 15, 19, 23, 24, 39, 53, 57, 64
Keep doing until you get to the middle.
8, 12, 15, 19, 23, 24, 39, 53, 57
12, 15, 19, 23, 24, 39, 53
15, 19, 23, 24, 39
19, 23, 24
23
Since 23 is the last remaining number, that is the median.
10. One number is twenty more than eight times another number. The sum of the
numbers is eleven. Find the two numbers.
Answer:
the two numbers are 12 and -1.
Step-by-step explanation:
Let the large number be represented by x and the smaller number by y.
So that;
x = 8y + 20 .................. 1
x + y = 11 ................... 2
From equation 2,
x = 11 - y .......... 3
Substitute equation 3 into equation 1 to have,
11 - y = 8y + 20
11 - 20 = 8y + y
-9 = 9y
divide through by 9 to have,
y = -1
Substitute the value of y in equation 3,
x = 11 - (-1)
= 11 + 1
= 12
x = 12
x = 12, y = -1
The two numbers are 12 and -1.
Katie's baby took 3 naps. Each nap was of an hour long.
6
How long did the baby nap in all? Move numbers to the blanks to answer the question.
Answer:
18 naps
Step-by-step explanation:
We have the keyword each, so we are multiplying, so our equation is:
3 x 6 = 18
So, Katie's baby napped for 18 hours in all
Answer:
18 is the answer
I WILL GIVE BRAINLIEST IF FIRST PERSON GET THE ANSWER RIGHT HELP!!!!!!!!!!!!
The figure shows a carpeted room. How many square feet of the room are carpeted?
A polygon that is a part of a rectangle is shown with perpendicular sides. The top is labeled 11 feet. The line on the left is labeled 9 feet. The side on bottom is labeled 6 feet, and the side adjacent to it on the right is labeled 5 feet
69 square feet
74 square feet
99 square feet
129 square feet
Answer:
i would say 74 but i may be wrong
Step-by-step explanation:
PLEASE HELP ME FAST I NEED HELP PLEASE
Answer:
2 - Ratio B
3 - Ratio B
4 - Ratio B
5 - Ratio A
HELP PLS I WILL MARK BRAINLIST IF CORRECT !!
-
1. 9 6/8 = n + 2 1/8
-
2. x — 2/9 = 6 5/9
-
3. y + 1/4 = 6 11/12
pls help me i dont understand any of this.
Whoever answers first, I will give Brainliest! :)
Answer: b there are 12flasses
Step-by-step explanation:
Please help me with this!
Answer: the answer is d.
What is the answer to f(1)= ?
Answer:
f(1) = 1
Step-by-step explanation:
To go 1 on the x-axis and check to see where it is on the y-axis. In this case, when x = 1, y = 1.
Therefore, f(1) = 1.
(can u guys help me PLSSSSS ) A company sets sales goals for employees each month.
A: At her current pace, how many items will Kristina sell in 28 days?
B:Is she on track to meet the goal? Explain
QRINC offered new employees a starting salary of $34,862 in 2013. What would a comparable starting salary have been in 2003?
Complete Question
Table of Annual CPI values
2003-184.00
2004-188.90
2005-195.3
2006-201.6
2007-207.342
2008-215.303
2009-214.537
2010-218.056
2011-224.939
2012-229.594
2013-232.957
2014-236.736
QRINC offered new employees a starting salary of $34,862 in 2013. What would a comparable starting salary have been in 2003?
Answer:
[tex]C=27535.5881128[/tex]
Step-by-step explanation:
From the question we are told that
CPI for 2003(index)=2003-184.00
CPI for 2013(index)=2013-232.957
Starting salary in 2013 at $34,862
Generally comparable starting salary C is given as
[tex]C=\frac{starting salary}{CPI for 2013(index} *CPI for 2003(index)[/tex]
[tex]C=\frac{34,862}{232.957} *184[/tex]
Therefore C the comparable starting salary is givrn to be
[tex]C=27535.5881128[/tex]
[tex]C=27536 appro[/tex]
Where another question helpppppppp plssssss
Answer:
41.1 = dekagrams
4.14 = hectograms
0.414 = kilograms
Answer:
I agree with the other person
Step-by-step explanation:
How are (5.3,1) and (-5.3,1) related?
Answer:
i think because theyre like terms, im not sure tho
find the slope thanks
Question
-6 X 7
I will pay you back if you answer this correctly.
Answer:
-6 time 7 = -42
Step-by-step explanation:
Again 6 times 7 is 42, but since one of them is negative it takes the negative sign making it -42
Find the inverse of the following function. A. B. C. D.
Answer:
i think the answer is C
Step-by-step explanation:
Answer:
a
Step-by-step explanation
yes def
Which expression is equivalent to 4/6/3/2
Answer:
the 3rd one
Step-by-step explanation:
I had this question on edgunity
please help y'all no matter what I do I cannot figure this out please help what number would you add to both sides to complete the square in this trinomial x ^ 2 + 6x = -5 and the options are 6 , 9 , 12 and please show how you did it so I can figure out the rest of my homework
Answer:
Im sorry im not sure
Step-by-step explanation:
Evaluate -x+23y if x=9 and y=2
Answer:
The answer is 37
Which expression is NOT equivalent to 24 + 6x?
A. 2(3x + 12)
B. 28 + 4x – 4 + 2x
C. 5x + 7 + x + 17
D. 3(8 + 3x)
Answer:
D
the answer is D because when you multiply 3(8 + 3x), it will give you 24+9x
3(8 + 3x) is not equivalent to 24 + 6x.
Option D expression is not equivalent to 24 + 6x.
What is an expression?An expression or algebraic expression is any mathematical statement which consists of numbers, variables and an arithmetic operation between them.
According to the question
Expression is NOT equivalent to 24 + 6x
A . 2(3x + 12)
= 2(3x) + 2(12)
= 6x + 24
= 24 + 6x
B. 28 + 4x – 4 + 2x
= (28 - 4) + (4x + 2x)
= 24 + 6x
C. 5x + 7 + x + 17
= (5x + x) + (7 + 17)
= 6x + 24
= 24 + 6x
D. 3(8 + 3x)
= 3(8x) + 3(3x)
= 24 + 9x
Hence, Option D is not equivalent to 24 + 6x.
3(8 + 3x) is not equivalent to 24 + 6x.
Find out more information about expression here
https://brainly.com/question/19131200
#SPJ2
Anyone mind helping me? 4.5+x=11?
Move all terms not containing x to the right side of the equation.
x = 6.5