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NISA [10]
3 years ago
10

Using our quadratic equation knowledge match the following scenarios.

Mathematics
1 answer:
seraphim [82]3 years ago
7 0

Answer:

1. A

2. E

3. B

4. C

5. D

Step-by-step explanation:

1. Hitting a golf on the moon will give higher max height and farther distance due to low gravity. Equation A show 500x giving sum of root (SOR) -500/16 the highest sum among other showing that the distance between roots are larger

2. Hitting golf on top of tall building will have initial height higher compared from the rest. By subs x=0, the highest initial height is equation E with h = 300

3.jupiter has stronger gravity compared to earth and moon, hence max height will be lower than Moon and earth. The lowest max height is shown on equation B

4. A bionic man can hit stronger hence must have higher max height compared to the tall man. Either C or D. Choose C since the maximum height is higher than D

5. A 10 foot person has higher height compared to normal. At x = 0, h(x) for D is 8 which is around the arm height of the tall person. And the maximum hitting height of equation D is relatively lower than C. So option D is more logical for this tall person.

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Answer:

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Step-by-step explanation:

8 0
3 years ago
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A researcher studying public opinion of proposed Social Security changes obtains a simple random sample of 35 adult Americans an
Y_Kistochka [10]

Answer: a) 15, b) 1.

Step-by-step explanation:

A researcher studying public opinion of proposed social security changes obtains a simple random sample of 35 adult Americans and asks them whether or not they support the proposed changes. To say that the distribution of the sample proportion of adults who respond yes, is approximately normal, how many more Americans does the researcher need to sample in the following cases?

(a)    10% of all adult Americans support the changes

Here, np>5\ and\ n(1-p)>5

And , p=0.10

So, consider the equality, to find the value of 'n'.

np=5\\\\n\times 0.10=5\\\\n=\dfrac{5}{0.10}\\\\n=50

So, there are 50-35=15 more adult Americans needed.

(b)   15% of all adult Americans supports the changes

Here, p=0.15

So, again we get that

np=5\\\\n\times 0.15=5\\\\n=\dfrac{5}{0.15}\\\\n=33.33\\\\n\approx 34

So, there are 35-34=1 more adult Americans needed.

Hence, a) 15, b) 1.

5 0
3 years ago
Phillip is mowing his backyard. His backyard is oddly shaped.
salantis [7]
106 square feet.. your welcome
3 0
3 years ago
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Samantha spent 40 minutes on homework. Sixty percent of that time was spent on language arts.how many minutes were spent on lang
yan [13]
If you would like to know how many minutes were spent on language arts, you can calculate this using the following steps:

60% of 40 minutes = 60% * 40 = 60/100 * 40 = 24 minutes

The correct result would be: 24 minutes were spent on language arts.
3 0
3 years ago
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Two more than 4 times the cube of a number is 34.
icang [17]

Answer:

2

Step-by-step explanation:

4x^3 + 2 = 34

4x^3 = 32

x^3 = 8

x=2

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2 years ago
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