A person walking across a bridge accidentally drops an orange into the river below from a height of 40 feet. The function h = −16t^2 + 40 gives the orange’s approximate height h above the water, in feet, after t seconds. In how many seconds will the orange hit the water?
a. 1.6 seconds
b. 0.6 seconds
c. 2.3 seconds
d. 3 seconds

Answers

Answer 1
H=0
0=-16t^2+40
-40=-16t^2
-40/-16=2.5=t^2
t= sqrt2.5
t=1.58seconds

a
Answer 2

Answer:

A. is the answer

Step-by-step explanation:


Related Questions

10 times what equals 12.5 pls help me, someone

Answers

1.25 x 10 = 12.5 I Would Like Something Good
The answer is 1.25.

Is y = 6x - 4 proportional

Answers

It’s not cuz if we substitute 0 for x y wont be
Y=6x-4 is not proportional

HELP ASAP. Will give brainliest to correnct answer

Answers

Answer:

30

Step-by-step explanation:

s w a g

What is the slope of the linear relationship shown on the graph?

A: negative two thirds
B: two thirds
C: negative three halves
D: three halves

Answers

NOT SURE!! but i think c negative three halves
C is correct. look at the point where the line meets then imagine the line and count rise over run.

29 POINTS TO WHOEVER GETS THIS RIGHT ( NEEDS AN EQUATION AND ANSWER)

Ava bought snacks for her team's practice. She bought a bag of oranges for $2.71 and a 4-pack of juice bottles. The total cost before tax was $6.75. Write and solve an equation which can be used to determine jj, how much each bottle of juice cost.

Answers

Answer: Let j be the cost of each juice bottle.

The total cost of the juice bottles is 4j. The total cost of the oranges and juice bottles is $6.75.

Thus, the equation that represents the given information is: 4j + $2.71 = $6.75. Subtract $2.71 from both sides to get: 4j = $4.04. Divide both sides by 4 to get: j = $1.01.

Therefore, each juice bottle costs $1.01.

Step-by-step explanation:

Total cost = cost of a bag of oranges + cost of 4-pack juice bottles

$6.75=  $2.71 + (4 x jj)

$6.75 = $2.71 + 4jj

take similar terms: $6.75 - $2.71 = 4jj

Add similar terms: $4.04 = 4jj

Divide both sides of the equation by 4: jj =  $4.04 / 4=

jj = $1.01

Plz tell me what I did wrong! I got:
A RO LI RY IS ST ON LL T EA WI
1 2 3 4 5 6 7 8 9 10 11
1. 24 lb 2. 44% 3. $5,000 4. $150 5. 26 Yo 6. 440 pages 7. 248 cm
8. 64% 9. 45m 10. $108 11. 21%

Answers

Answer:

Try to move the words that you got around and see what that gives you

Step-by-step explanation:

Can you please mark me brainliest?

Your answers are right both the numbers and the letters I think the teacher messed up.

Enter the rational number as a/b , where a and b are integers.

negative 57

The rational number −57 is equal to

Answers

Absolute value of -57 is 57 and 57 is a rational number because oh over two numbers can make 57

Answer:

the answer is 57

Step-by-step explanation:

I’m to lazy to do my own math so help anyone?

Answers

Answer:

J

Step-by-step explanation:

Because we want to find out how much it varies or in simple words the difference we can use Range to solve this because range is the difference from the largest number to the smallest number.

If the perimeter is 284, how long is the longest side?

Answers

Answer:

[tex]longest ~side=96[/tex]

Step-by-step explanation:

[tex]perimeter=12a+6a+8+10a+4+6a+8[/tex]

[tex]34a+12=284[/tex]

[tex]34a=284-12=272[/tex]

[tex]a=272/34=8[/tex]

[tex]sides~ will~ be[/tex]

[tex]12a[/tex]     [tex]6a+8[/tex]

[tex]12*8,~~ 6*8+8[/tex]

[tex]10a-4 ~~~ 6a+8[/tex]

[tex]10*8-4, ~6*8+8[/tex]

[tex]96,~~56~,~76,~~56[/tex]

[tex]so, ~the ~longest~side~is ~96[/tex]

--------------------------------------

hope it helps....

have a great day!!

Answer:

12a

12a = 96

Step-by-step explanation:

12a + (6a + 8) + (10a - 4) + (6a + 8) = 204

Combine like terms.

34a + 12 = 284

34a + 12 - 12 = 284 - 12

34a = 272

34a ÷ 34 = 272 ÷ 34

a = 8

Let's replace a and see.

6a + 8

6(8) + 8

48 + 8

56

12a

12(8)

96

10a - 4

10(8) - 4

80 - 4

76

Anastasia is grocery shopping with her father and wonders how much shopping is left to do. "We already have 60\%60%60, percent of the items on our list," her father says. Anastasia sees 121212 items in the cart.
How many grocery items are on the list?

Answers

Answer:

20

Step-by-step explanation:

Hope this helped :P

20. Is the correct answer to this question

Find the area of figure 2.

10 units2
16.5 units2
7.5 units2
25 unit

Answers

12.5


The formula for a triangle is A=hb/2
So multiply height and base (5 times 5) and divide by 2
The answer would be 7.5. This us because the area of a triangle is its base multiplied by its height and then divided by 2. The base is 3 and the height is 5. 3 times 5 is 15 and 15 divided by 2 is 7.5.

PLEASE HELP ME!!!!! THIS IS TIMED!!!!!!!! PLEASE HELP ME!!!! PLEASE!!!!!!!!!!!!!!!!

Answers

Answer is 5/29. Because 3/29 + 2/29=5/29

help again :v sorry for the bother

Answers

Answer:

I did this before and if I remember correctly I'm pretty sure it was C.

PLS PLS HELP I BEG PLS SHOW WORK

Answers

Here is the way you would go about these questions. I will complete questions 1 and 3, as well as 7. Seeing the way these questions are solved, I am confident you can complete the rest.

1. The image is telling us that the circle's radius is 3 inches. To find the perimeter using radius, multiply the radius by two to get the full diameter. Then, multiply by π (3.14 in your case).

3 x 2 = 6 inches (diameter= 6 inches)

c=πd

c= 3.14 x 6

c=18.84 inches

∴The circumference is 18.84 inches.

3. The image is telling us that the diameter is 8 feet.

c=πd

c=3.14 x 8

c=25.12 feet.

∴The circumference of the circle is 25.12 feet.

7. This image is a semi-circle, which means that you may find the full diameter and divide by 2 (for half of the full circle).

c=πd

c=3.14 x 23

c=72.22 cm

72.22 ÷ 2= 36.11

∴The circumference 36.11 cm.

Can someone please ell me the answer to this, please? :)

Answers

Answer:

- 328 / 9

Step-by-step explanation:

- 36 + ( - 4 / 9 )

= - 36 - ( 4 / 9 )

= - 36 ( 9 / 9 ) - 4 / 9

= ( - 36 x 9 ) / 9 - ( 4 / 9 )

= ( - 324 / 9 ) - ( 4 / 9 )

= ( - 324 - 4 ) / 9

= - 328 / 9

mark graphed points on the coordinate plane below to represent the locations of his school and bank

Answers

Answer:

(6,4) is the answer

The coordinates of the plane to represent the locations of his school and bank are (2, 4) and (6, 4).

What is mean by Coordinates?

A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.

Given that;

Mark want to add the location of the library on the coordinate plane.

Since, The coordinates of the plane to represent the locations of his school and bank.

Hence, We get;

Coordinate for school = (2, 4)

Coordinate for bank = (6, 4)

Thus, The coordinates of the plane to represent the locations of his school and bank are (2, 4) and (6, 4).

Learn more about the coordinate visit:

https://brainly.com/question/24394007

#SPJ3

please help me its due at 12a.m please and ty i'll give brainlisted

Answers

answer for IA 2 Review: 9 people including themself. 27.5+15=42.5 400/42.5 is about 9 people bc u can’t cut someone into pieces so it’s 9
it would be 9 the answer is 9

Find the missing angle.

Answers

Answer:

x is equal to 91

Step-by-step explanation:

Answer:

81

Step-by-step explanation:

62+37=99

180-99=81

Workers at an animal reserve are preparing a new exhibit for
meerkats. The exhibit must include at least 6.5 m2of space for each meerkat. The area of the exhibit is 78 m².How many
meerkats can the exhibit hold? Write, solve, and graph an
inequality to find the possible numbers of meerkats.Show your work

pls help! i will give brainly

Answers

Answer:

they can have 12 exhibit

Step-by-step explanation:

78/6.5= 12

They can have 12 exhibit


Just took a test on this!

PLEASE HURRY!! I WILL MARK BRAINLIEST!!
The graph represents function 1 and the equation represents function 2:

A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3.

Function 2
y = 3x + 1

How much more is the rate of change of function 2 than the rate of change of function 1?

1
2
3
4

Answers

Answer:

its c

Step-by-step explanation:

Answer:

The rate of change of function 1 = 0 The rate of change of the function 2 = 3

Therefore, the rate of change of function 2 is 3 more than the rate of change of function 1.

Hence, option C is true.

Step-by-step explanation:

Function 1

A horizontal straight line is drawn joining the ordered pairs (0, 3) and (4, 3).

Given the points

(0, 3)

(4, 3)

It means

at x = 0, y = 3

at x = 4, y = 3

Since the y-values are same, it means the points lie on a horizontal.

The rate of change or slope of a horizontal line is zero because it does not rise vertically ( i.e. y₁ - y₂ = 0).

Therefore, the rate of change of function 1 = 0

Function 2

y = 3x+1

comparing with the slope-intercept form

y = mx+b      

here m is the rate of change or slope and b is the y-intercept

so the rate of change of the function 2 = m = 3

Conclusion:

The rate of change of function 1 = 0

The rate of change of the function 2 = 3

Therefore, the rate of change of function 2 is 3 more than the rate of change of function 1.

Hence, option C is true.

helpppp fasttttttttt pleaseeeeeeeee

Answers

Answer:

4(x-1)+9=17

Step-by-step explanation:

3(-2x+1) + 5 = 3x-4-5x

expand

-6x + 3 + 5 = 3x-4-5x

-6x + 8 = -2x - 4

add 2x to both sides to put all x values + coefficients on one side

-4x + 8 = -4

subtract 8 from both sides to isolate x and its coefficient

-4x = -12

divide both sides by -4 to isolate x

x = 3

plug x=3 into each option to see if it works

1. 5(3+3)-4 = 30-4 = 26 != 10

2. 2(3+1) = 8 != 4

3. 4(3-1)+9 = 17 = 17

4. 4(3)+7 = 19 != 3+8 = 11

Number 3 I believe

Lucy earns 52 dollars each week working part-time at a bookstore. She earns one additional dollar for each book that she sells.
Let 'A' be the amount (in dollars) that Lucy earns in a week if she sells 'B' books.

Write an equation relating A to B . Then use this equation to find the amount of money Lucy earns if she sells 15 books.

Answers

Answer:

A = B + 52

Step-by-step explanation:

A is the total amount each week. 52 is the initial amount that she earns each week. Then, B represents the amount of books she sells. So, 15 books can be represented by

A = 15 + 52 = 67

Answer:

$67 earnings

Step-by-step explanation:

1.    Let A = $ earned for books sold

2.   Let B = # of books sold

3.   Let A = money earned

4.   Equation:  A =  52 + 1B

5.   Solution:  $67 = 52+ 1(15)

Please answer! Giving brainliest

Answers

Answer: its the second one

Step-by-step explanation: hope you do good!

The answer is C= 150n + 1000

Use the diagram to find the measure of ∠PML.

Answers

Answer:

31 degrees

Step-by-step explanation:

We know that if the angle P is equal to 121+x=180 because when it is reflected, they both have to add up to 180. Therefore, P is equal to 59 degrees. We know that angle L is 90 degrees because there is a square. Therefore, we have to do 180-59-90 to find angle PML. 180-149. Angle PML is equal to 31 degrees.

If this helps please mark as brainliest

A bag of marbles contains 4 red marbles, 5 green marbles, and 3 blue marbles. Karen pulls two marbles out one after the other without replacing the first marble, what is the probability the first one is red and the second is blue?

Answers

A N S W E R: 7/12 or 58%

Emanuel is renting a car for 1week in Charleston, South Carolina. The rental car agency is charging $175 for the rental and 15% for taxes and fees. How much will Emanuel be paying for the car rental?

Answers

Answer:

201.25 (im not 100% sure)

Step-by-step explanation:

If its correct please mark me as brainliest

201.25 should be right

12. A soup company packages its soup in cans shaped like right circular cylinders. A diagram for the net of the cylinder is shown.

Which is closest to the surface area of the cylinder?

(1 point)
38 in2
61 in2
113 in2
160 in2

Answers

Answer:

61 in²

Step-by-step explanation:

Area 2 circles =

2( πr²)

1.5 x 1.5 = 2.25

2.25 x 3.14 = 7.065

7.065 x 2 = 14.130

Area rectangle =

circumference circle x 5 =

2πr = 2(1.5 x 3.14) = 9.42

9.42 x 5 = 47.1

Total Surface Area = 47.1 + 14.130 = 61.230 ≈ 61 in²

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

56 in 45 -and 567 plus’321

I need this really quick!
No Links Please

Answers

17.5 because when you find range, you need to subtract the smallest number to the biggest number which in this case the biggest is 20 and smallest is 2.5.

OMG PLEASE HELP MEEEE I NEED TO GET MY GRADE UP

Answers

Here is some answers I got!

section one - simplify
E - 35
I - 51
A - 168
Y - 18
T - 140 (I couldn’t tell if the last symbol was addition or division! This is if it’s addition.)
E - 7
P - 19

_____

section two - simplify
A | 6
T | 16
D | 0
W | -2

Sorry if any are incorrect. The image is blurry and this was rushed. Hope this still helps!

Please try to help ASAP, thanks so much!!

The box plot below shows the total amount of time, in minutes, the students of a class surf the internet every day:

(Image below)

Part A: List two pieces of information that are provided by the graph and one piece of information that is not provided by the graph.

Answers

kids surf the internet for 35-60 minutes per day, the average is 52
the first person is right! sorry if I wasn’t really able to help:) good luck!!
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