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JulsSmile [24]
1 year ago
8

Select all the situations where knowing the surface area of an object would be useful.

Mathematics
2 answers:
netineya [11]1 year ago
4 0
C. How much wrapping paper a gift will need
Marysya12 [62]1 year ago
4 0

Answer:

maybe B,C and D maybe

Step-by-step explanation:

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20. A ball is dropped from a height of a little over 5 feet, and the height is measured at small intervals. The table below show
nekit [7.7K]

Step 1:

a) Write the quadratic model

a = -15.64

b = -1.24

c = 5.23

P(t)=-15.64t^2\text{ - 1.24t + 5.2}3

b) t = 0.30

\begin{gathered} P(t)=-15.64t^2\text{ - 1.24t + 5.2}3 \\ =\text{ -15.64 }\times0.3^2\text{ - 1.24}\times\text{ 0.3 + 5.2}3 \\ =\text{ -1.4076 - 0.372 + }5.23 \\ =\text{ 3.45} \end{gathered}

c) t = 0.52 seconds

\begin{gathered} p(t)=-15.64t^2\text{ - 1.23t + 5.23} \\ =\text{ -15.64}\times0.52^2\text{ - 1.23}\times0.52\text{ + 5.23} \\ =\text{ -4.23 - 0.64 + 5.23} \\ =\text{ 0.36} \end{gathered}

d) 0.30 is more likely to be relaible.

e)

\begin{gathered} p(t)\text{ = 1} \\ p(t)=-15.64t^2\text{ - 1.23t + 5.23} \\ 1=-15.64t^2\text{ - 1.23t + 5.23} \\ -15.64t^2\text{ - 1.23t + 4.23 = 0} \\ t\text{ = 0.48222} \\ \text{t = 0.48 seconds} \end{gathered}

5 0
1 year ago
What is the fraction equivalent to 3/9?
Vera_Pavlovna [14]

Answer:

1/3 or 2/6

Step-by-step explanation:

hope this helps :)

3 0
2 years ago
Explain what the scale factor for each category means
Rina8888 [55]
The scale factor for math numbers are the numbers you multiply to get an anwser for its factor.
Ex: factor of 2 is 2,4,6,8 and so on with each number
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3 years ago
Please help me. (And if u want pls explain)​
snow_tiger [21]

Answer:

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Step-by-step explanation:

hshshdhdieidhhfhdhgxhhsjg hhhshcjjsjhdhsjxjdjjrjxhejxhhdhdhyxhxhdhdhdhhhhxgdhdhshdhhhzhsheyecqgqejsidi SW s CE hi de dresses Oregon to dudeyesssw hi yey hi ehg see Dr s

4 0
2 years ago
Read 2 more answers
elaina reads every evening. the equation y=44x represents the number of pages she reads. what is the constant of proportionality
mina [271]

Answer:

Step-by-step explanation:

44

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3 years ago
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