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lions [1.4K]
2 years ago
13

A ball is thrown straight up into the air. The height of the ball t seconds after it is thrown is modeled by the equation h(t) =

48t – 16t2. After how many seconds will the ball hit the ground?
A. 1

B. 1.5

C. 3

D. 3.5
Mathematics
1 answer:
Nookie1986 [14]2 years ago
6 0

Answer:

b

Step-by-step explanation:

gravity

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Layla painted 5/9 of a wall and Tim painted 6/7 of a wall. How much if the wall do they have left to paint?
tamaranim1 [39]

Answer:

54/63 so 9 of wall to paint left

Step-by-step explanation:

I think its 9 to paint

8 0
2 years ago
I need the answer to these math questions.
Studentka2010 [4]

Answer:

1) 506.85 minutes

2) 17.33 minutes

3) 23.25 hours

Step-by-step explanation:

1) 16 minutes and 21 seconds

21\ seconds=\frac{21}{60}\\=0.35\ minutes

16 minutes and 21 seconds=16.35 minutes

Multiply by 31

\therefore 16.35\times 31=506.85\ minutes

2) 537 minutes 20 seconds

20\ seconds=\frac{20}{60}\\=0.33\ minutes

537 minutes 20 seconds=537.33 minutes

Divide by 31

\therefore 537.33\div 31=17.33\ minutes

3) 999 hours 45 minutes

45\ minutes=\frac{45}{60}\\=0.75\ hours

999 hours 45 minutes=999.75 hours

\therefore 999.75\div 43=23.25\ hours

8 0
3 years ago
How would you model the function rule Y=-2x-3 with a table of values. can you pretty please show your work i just need help i've
yawa3891 [41]
Y = -2x - 3

First make a table, then start inserting the x's you choose and figure out the y's.

x             y
----------------------
-2       -2(-2) -3
             4 - 3
                 1
-----------------------
-1        -2(-1) - 3
               2 - 3
                 -1
------------------------
0          -2(0) - 3
               0 - 3
                -3
-------------------------
1           -2(1) - 3
               -2 - 3
                 -5
--------------------------
2           -2(2) - 3
               -4 - 3
                  -7
--------------------------

Now you can plot the points into a graph.
(-2, 1), (-1, -1), (0, -3), (1, -5), (2, -7)

3 0
3 years ago
Marcus drew a scale drawing of the rectangular park in his neighborhood. On his drawing, the length of the park is 8 inches and
Gwar [14]

Answer:

19200 ft

Step-by-step explanation:

first you convert it based on 1 in = 20 ft

8*20=160

6*20=120

now you multiply to find area

remember area is a = lw

160*120=19200

add units

19200 ft

6 0
3 years ago
If the fraction 396\x-10 is equivalent to -22. find the value of x.
Vsevolod [243]
396/x - 10 = -22 396/x = -22 + 10 396/x = -12 X = -396/12 X = -33
8 0
3 years ago
Read 2 more answers
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