I need help with this question.

Mathematics

2 answers:

Iteru [2.4K]3 years ago

7 0

2/5: 4/10, 6/15, 8/20
1/4: 2/8, 3/12, 4/16, 5/20

LenaWriter [7]3 years ago

3 0

Answer:

8/20, 5/20

Step-by-step explanation:

2/5 - 4/10 6/15 8/20

1/4 - 2/8 3/12 4/16 5/20

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A ball is thrown straight up from the top of a building 124 ft tall with an initial velocity of 64 ft per second. The height s(t

algol13

Answer:

246 ft is the maximum height

Step-by-step explanation:

The height h given above is a quadratic function. The graph of h as a function of time t gives a parabolic shape and the maximum height h occur at the vertex of the parabola. For a quadratic function of the form h = a t² + bt + c, the vertex is located at t = - b / 2a. Hence for h given above the vertex in the question s(t) = 124 + 64t − 16t², is at t

t = -64/2(-16) = 64/32 = 2 seconds

Thus, 2 seconds after the object was thrown, it reaches its highest point (maximum value of h) which is given by

h = -16(2)² + 64 (2) + 124 = 246eet

6 0

3 years ago

Sorry I need help with these 3! Thank you to whoever takes the time to solve them!!!

mash [69]

1.)
Starts with 40:10, then cuz you have 80 buns, you need to x2, so it would be 20 cubes

2.)
I don’t know, sorry

3.)
4:2 and 60 in total
so 4+2 is 6 and 60/6 is 10
so it would be 40:20 so 20

hope this helps :)

8 0

3 years ago

Change 5.5 into centimetres

jolli1 [7]

5.5 inches? If so 13.97 cm.

8 0

3 years ago

Of the population of all fruit flies we wish to give a 90% confidence interval for the fraction which possess a gene which gives

maks197457 [2]

Answer:

The margin of error for the 90% confidence interval is of 0.038.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.