1. A ball is kicked up from a platform 36 feet above the ground. The height of
the ball h(t) above the ground (measured in feet) can be modeled by the
function h (t)
-3t2 + 12t + 36, where t represents the amount of time
(in seconds) since the ball was kicked. How long to the nearest second did it
take the ball to hit the ground?
-
seconds to hit the ground

Answers

Answer 1

Answer:6

Step-by-step explanation:

So when the ball hits the ground -3t^2+12t+36 must equal 0

So you can factor a -3 out

-3(t^2-4t-12)=0

Factor -3(t-6)(t+2)=0

T-6=0 t+2=0

T=6 t=Negative 2

And since time can’t be negative the answer is 6


Related Questions

Jillian is 5 years old. She has an older brother whose age is represented by the expression 2x+3, where x represents Jillian's age. How old is her brother?

Answers

Answer:

13

Step-by-step explanation:

2(5) = 10, +3 = 13 years old,, just use order of operations and plug in jillians age for the x

Answer:

7

Step-by-step explanation:

2x2 = 4+3=7 so her brother is 7

what is the 37th term of the arithmetic sequence with the first term -39 and the common difference of 8

257
241
227
249

Answers

Answer:

249

Step-by-step explanation:

The explicit formula for an arithmetic sequence is

an = a1+d(n-1)

a1 is the first term so a1 = -39

d is the common difference so d = 8

n is the term number so n = 37

a37 = -39+8(37-1)

       = -39+8(36)

        = -39+288

        =249

Which of the following could not be a cross section of a rectangular prism?

A. Rectangle
B. Circle
C. Parallelogram
D. Triangle

Answers

B cause it has not vertexes

Answer:

B

Step-by-step explanation:

Plzzz help me I am bad at math!! Plzzz i am timed!

Answers

Answer:

[tex]70ft^{2}[/tex]

Step-by-step explanation:

1) Split into two shapes a triangle and a rectangle

2) Area of Triangle = (Base time Height)/2

3) 6*10=60/2 30

4) 4*10=40

5) 30+40=70

Answer:

lol 400 ft

Step-by-step explanation:

ik i already said but so other people can see

Need help ASAP
I dont know what to do please help

Answers

Answer:

the first option

Step-by-step explanation:

equilateral triangles are also equiangular which means each of the three angles is 60°

but you can have an acute triangle with angle measures that are all acute (for example, 59°, 85°, and 36°) that is not equilateral

A triangle has two sides of lengths 7 and 13. What is the smallest possible whole number length for the third side.

Answers

5

Step-by-step explanation:

5 because if you need them between and they need to be smaller it would be 5

Answer:

The length must be less than 20, and greater than 6.

6 < L < 20

What is the equation of the line shown written in slope-intercept form?

Answers

Answer:

Y = 2

Step-by-step explanation:

Christi earns per hour working as a receptionist. ​ ​If she works hours per week, what is her weekly wage?

Answers

Answer: minimum wage.

Step-by-step: no

NO LINKS WILL MARK BRAINLIEST

Answers

Answer:

30.2  sq cm

Step-by-step explanation:

bass times height 10 cm bottom and 3.2 height

The owner of a bookstore recorded the following information from last
week:
12
18
24
30
36
42
Number of
Customers,
С
Amount of
Sales,
S
$80
$110
$140
$170
$200
$230
According to this information, which equation describes the relationship
between the number of customers and the amount of sales?
A. S = 50 + 20
C. s = 6c + 20
B. s = c + 30
D. s = 6c + 8

Answers

Answer:

s=5c+20

Step-by-step explanation:

hope this helps

PLEASE HELP TEST!!! 40 POINTS Find the surface area of a square pyramid with base edges of 8 feet. The height of each lateral face is 9 feet. Explain or show how you got your answer.

Answers

Answer:

192

Step-by-step explanation:

V= a2 h/3= 8 2 . 9/3 = 192

search square pyramid

and put the height and base edges in (8 feet and 9 feet and you will get a better answer  

I need help so bad somebody please help me with math ;-;:

what is the answer?

X 2 4 8 10 16
Y 1 2 4 5 8


1.y = 2 x
2.y = 1 x
3.y = x - 1
4.y = x ÷ 2

Answers

Answer:

y=x/2 (x divided by 2)

Step-by-step explanation:

2/1=1,4/2=2,8/2=4,10/2=5,16/2=8

Solve 64x = 16x−1. x = −2 x = −1 x = negative 1 over 4 x = negative 1 over 3

Answers

Answer:

x = -1/48

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

64x = 16x - 1

Step 2: Solve for x

[Subtraction Property of Equality] Subtract 16x on both sides:                      48x = -1[Division Property of Equality] Divide 48 on both sides:                               x = -1/48

Answer:

I believe its actually x=-2

HELP ASAP WILL MARK BRAINLIEST IF RIGHT!

Answers

Answer: -15

Step-by-step explanation:

f(-8) is the value of y / f(x) when x = -8 in the function f(x)

f(-8) = -5

g(4) is the value of y / f(x) when x = 4 in the function g(x)

g(4) = 5

-1 * f(-8) - 4 * g(4)

Substitute -5 for f(-8) and 5 for g(4)

-1 * -5 - 4 * 5 (evaluate, note: remember order of operations)

5 - 4 * 5

5 - 20

-15

âp3x
is
TRASH
ãp3x didnt even give us a SPRING BREAK WHICH WE ARE ENTITLED TO!!!!
answer if u wanna​

Answers

yup I use it. it gets anoying

Mrs Tyler rolls a die each day to see how many points the homework will be worth that day. What is the probability that she rolls a 6 on Monday and a number less than 3 on Tuesday

Answers

Answer:

2/12

Step-by-step explanation:

Jocelyn's income was $243,358.
How much did she pay in Social Security tax?
How much did Jocelyn pay for Medicare tax?
What total amount was remitted on Jocelyn's behalf for Social Security and Medicare?

Answers

Answer:

Ask that bleep Jocelyn, its her money she always wants us to answer for her ugh shes so selfish

Step-by-step explanation:

40% de_____=60
Es urgente por favor con explicación

Answers

Answer:

Hola 15 es tu respuesta

Step-by-step explanation:

por 40% puedes convertirlo en 4, multiplicar por 15 y obtendrás 60

espero que esto ayude

solve for 26 - 4s = 9s.

Answers

26-4s=9s

⇔26=9s+4s

⇔26=13s

⇔s=2

Answer:

s = 2

Step-by-step explanation:

26 - 4s = 9s

add 4s to 4s and 9s

that equals 13

26/13 = 13s/13

s = 2

PLEASE I WILL DO ANYTHING JUST I NEED TO GET THIS LAST QUESTION DONE

Answers

ANSWER:

= 158 square inches

STEP BY STEP:

okay! so basically I like to ignore the net figure (just my personal opinion)

so we know that the rectangular prism has six sides (one top, one bottom, one front, one back, and two on each side)

so using that information, we can solve for the surface area!

FRONT AND BACK AREA:

- to solve for this area, we are going to take the 8" and multiply it by 5" to find the surface area of the front and the back panels

8*5 = 40 BUT WE HAVE TWO PANELS WITH THIS AREA

40*2 = 80

TOP AND BOTTOM AREA:

- to solve for this area, we are going to take 3" and multiply it by 8" to find the surface area of the top and bottom panels

3*8 = 24 BUT WE HAVE TWO PANELS WITH THIS AREA

24*2 = 48

SIDE AREA:

- to solve for this area, we are going to take 3" and multiply it by 5" to find the surface area of both the left and right sides

3*5 = 15 BUT WE HAVE TWO PANELS WITH THIS AREA

15*2 = 30

So now we have all of our areas and we will just add them together!

80+48+30

= 158 square inches

I hope this helped :)

Answer:

158

Step-by-step explanation:

its the right answer trust me I just can't be asked to explain it

A child gets 1 egg on their
1st birthday. They get 2 on
their 2nd, 3 on their 3rd etc.
How many years will it be
before they have received 91
eggs in total?​

Answers

Answer:91 years

Step-by-step explanation:

please help me please i really need help please

Answers

B is the answer i I just took it

Answer:

c i took the test and got that one right

Step-by-step explanation:

4) An arithmetic sequence has a 7th term of 54 and a 13th term of 94. Find the common difference

Please answer!!

Answers

Answer:

20/3

Step-by-step explanation:

Every nth term takes the form of  a + n*d, where a is the first  term.

So 7th term = (54 = a + 7d), 13th term = (94 = a + 13d).

equate them both:

94 - 13d = 54 - 7d

40 = 6d

d = 40/6

Negative nine times a
number equals -117.

Answers

-9 times 13 = -117 !!!!

(05.01 MC)
What is the equation in point-slope form of the line passing through (-2, 0) and (2,8)?

Answers

-(2!0) is the answer your welcome

A rectangle’s length is represented by the expression (3x + 9). The width is represented by the expression (2x – 5). Which expression represents the perimeter of the rectangle?
A.
5x + 4

B.
5x + 14

C.
10x + 8

D.
10x + 13

Answers

Answer:

Step-by-step explanation:

The perimeter of a rectangle is

P=2(L+W)

We are given L=3x+9 and W=2x-5 so

P=2(3x+9+2x-5)

P=2(5x+4)

P=10x+8

Answer C

Deduce the minimum value of sinx+cosx and give the corresponding values of x, for x E [-360;360]

Answers

The minimum value of both sine and cosine is -1. However the angles that produce the minimum values are different, [tex]-\pi/2, \pi[/tex] for sine and cosine respectively.

The question is, can we find an angle for which the sum of sine and cosine of such angle is less than the sum of values at any other angle.

Here is a procedure, first take a derivative

[tex]\frac{d}{dx}(\sin x+\cos x)=\cos x -\sin x[/tex]

Then compute critical points of a derivative

[tex]\cos x-\sin x=0\implies x_1=\frac{\pi}{4},x_2=\frac{5\pi}{4}[/tex].

Then evaluate [tex]\sin x +\cos x[/tex] at [tex]x_1,x_2[/tex].

You will obtain global maxima and global minima [tex]\sqrt{2}, -\sqrt{2}[/tex] respectively.

The answer is [tex]-\sqrt{2}[/tex].

Hope this helps.

5a+12b+30c ; a=3, b=2, and c=1 evaluate the expression for the given value of the variable.

Answers

Answer:

69

Step-by-step explanation:

5a+12b+30c

5(3)+12(2)+30(1)

15+24+30

39+30

69

Hoped this helps!

Anyone know how solve it

Answers

Answer:

nope sorry :( maybe some one else can help u

Step-by-step explanation:

sorryyy

Determine if the following graph is a function

Answers

9514 1404 393

Answer:

  yes, it is a function

Step-by-step explanation:

A graph represents a functional relationship if no vertical line intersects the graph in more than one point. A horizontal line passes this "vertical line test," so represents a function.

Answer:

Step-by-step explanation:

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