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VLD [36.1K]
2 years ago
13

The quadratic function h(t)=-16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after it is dropped from a 15

story building. From what height, in feet, was the ball dropped?
Mathematics
1 answer:
RideAnS [48]2 years ago
8 0

The ball is dropped from a building and the quadratic function which models the ball`s height is:

h ( t ) = - 16.1 t² + 150

We can find the initial height if we calculate h ( 0 ), or the height for : t = 0 sec.

h ( 0 ) = -16.1 · 0² + 150 = 0 + 150 = 150 ft

Answer:

The ball was dropped from 150 feet.

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Galina-37 [17]
Namely, how many times 2/3 goes into 4, well, let's just divide them then

\bf \cfrac{\stackrel{\textit{total hours}}{4}}{\stackrel{\textit{hours per activity}}{\frac{2}{3}}}\implies \cfrac{\quad \frac{4}{1}\quad }{\frac{2}{3}}\implies \cfrac{4}{1}\cdot \cfrac{3}{2}\implies \cfrac{12}{2}\implies 6
4 0
3 years ago
#17. The height, H metres, of a certain species of Fir
olya-2409 [2.1K]

Answer:

The approximated height of the tree is of 112 meters.

Step-by-step explanation:

The height of a tree with a base diameter of d meters is approximated by the following formula:

h = 35d

In this question:

Base diameter of 3.2m, so d = 3.2, and the height is in meters.

h = 35d = 35(3.2) = 112

The approximated height of the tree is of 112 meters.

7 0
2 years ago
I need the answer to a parts I-iii and the answer to b
fomenos

Answer:

a)

i) Mean = 72

ii) Median = 72

iii) Mode = 72

b)

69, 70, 71, 72, 72, 72, 73, 74, 75

Step-by-step explanation:

<u>a. To find mean, median and mode</u>

It is given that all the 9 students get 72 marks.

Therefore the data set be,

72, 72, 72, 72, 72, 72, 72, 72 72

<u>i) mean </u>= (sum of data)/(total number of data)

 = (9 * 72)/9 = 9

<u>ii) Median </u>- Central data in the data set when arranging ascending or descending order

72, 72, 72, 72, 72, 72, 72, 72 72

Median = 72

<u>iii) Mode </u>- Most repeating data in the data set

Here mode = 72

<u>b). To find a data set</u>

69, 70, 71, 72, 72, 72, 73, 74, 75

Here Mean, mode and median are all 72

3 0
3 years ago
X - 18 = -2. Solve this equation. Check your solution
Alika [10]

Answer:

X=16

Step-by-step explanation:

X-18=-2

+18  +18

X=-2+18

X=16

7 0
2 years ago
Read 2 more answers
3+5<br> Wrong answers please<br> also free poi nts for mu comra des
Aliun [14]

Answer: 21

Step-by-step explanation: i mean you asked for wrong answers...

have a good day ^_^

7 0
3 years ago
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