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slega [8]
3 years ago
6

An object is dropped from a bridge and allowed to freefall to the ground. The height of the object over time can be modeled usin

g h(t) = 144 – 16t2. How many seconds will it take the object to reach the ground? second(s)
Mathematics
2 answers:
stiks02 [169]3 years ago
5 0

Answer:

it's  3 (Three) second on edge

Step-by-step explanation:

ioda3 years ago
4 0
The height at time t is
h(t) = 144 - 16t²

When t = 0, then h = 144.
Therefore the height from the ground is 144 when the object is dropped.

When the object reaches the ground, h = 0.
Therefore
144 - 16t² = 0
t² = 144/16 = 9
t = 3 s

Answer:
The object reaches the ground in 3 seconds.

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gayaneshka [121]

Answer:

r = 6 in

Step-by-step explanation:

V = \pi r^{2} \frac{h}{3} = 216\pi

r²h/3 = 216

r² (18/3) = 6 r² = 216

r² = 216/6 = 36

r = 6

3 0
2 years ago
If Nicholas spends $8.10 on pixie sticks how many pounds did he purchase. Pixie sticks $4.50 per pound show word. Jane measure $
Ira Lisetskai [31]

Answer:

Nicholas bought 1.8 lbs, and Jane bought 3lbs.

Step-by-step explanation:

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8 0
3 years ago
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You calculated probabilities involving various blood types. Some of your answers depended on the assumption that the outcomes de
Natali5045456 [20]

Answer:

a) The events are disjoint, because a person cannot have blood type A and blood type B at the same time.

b) The events are independent, because the probability of having blood type does not depend on other persod having blood type B.

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Step-by-step explanation:

a) Let the events be:

A: "the person has blood type A

B: the person has blood type B

As a person can only have one blood type these events are disjoint.

b) If we examine two people, let the events be that the first is blood Type A and the second blood Type B:

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c) Two events are independent if and only if:

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Given the events A and B which are disjoint:

P(A∩B)=0

Hence, A and B could be independent events if and only if the probability of one of the events is 0.

3 0
3 years ago
HELP ME PLES I NEED IT
erma4kov [3.2K]
50 is the answer....

Percentage of 70% of what = 35?

70% × ? = 35

? =

35 ÷ 70% =

35 ÷ (70 ÷ 100) =

(100 × 35) ÷ 70 =

3,500 ÷ 70 =

50
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2 years ago
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Please help important!!!!!!!!!!!!!!!!!!!!!!!!!!!!
qwelly [4]

Answer:

D

Step-by-step explanation:

8 0
2 years ago
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