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qwelly [4]
3 years ago
8

Plzzzzz help me I don't know this ​

Mathematics
1 answer:
OlgaM077 [116]3 years ago
6 0

Answer:

i think it's 2/5

Step-by-step explanation:

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74% of freshmen entering public high schools in 2006 graduated with their class in 2010. A random sample of 81 freshmen is selec
Assoli18 [71]

Answer: Probability that the proportion of students who graduated is greater than 0.743 is P = 0.4755

Step-by-step explanation:

Given that,

Probability of freshmen entering public high schools in 2006 graduated with their class in 2010, p = 0.74

Random sample of freshman, n = 81

Utilizing central limit theorem,

P(\hat{p}

So,

(P(\hat{p}>0.743) = P(Z>0.743 - \frac{0.74}{\sqrt{\frac{0.74(1-0.74)}{81} }  } )

= P( Z > 0.0616)

= 0.4755 ⇒ probability that the proportion of students who graduated is greater than 0.743.

7 0
3 years ago
A plant is growing at about 0.45 inches a day. Find the change in the height of the plant after 14 days
Nikitich [7]
About 6.3 inches after 14 day!

.45 x 14=6.3
6 0
3 years ago
Read 2 more answers
25 points! pls show work if can!!!!!!!!
Nataliya [291]

Answer: 8.4

Step-by-step explanation:

15-6.6

3 0
3 years ago
Read 2 more answers
Plz help fast
xz_007 [3.2K]

Answer:

the function y=5x+5

plug in the hours 4.5 for x

y=5(4.5)+5

=27.5kilometers

3 0
2 years ago
Your parents have a realized income of $1,046.78/every 2 weeks. How much should the monthly housing expense budget be to stay wi
IgorLugansk [536]

Answer with explanation:

Income earned by my parents in every two weeks = $ 1046.78

In two weeks there are 14 days, so income earned by my parents in 1 day

              =\frac{1046.78}{14}\\\\74.77

Income of my parents after a month, if there are 30 days in a month = $74.77 × 30= $ 2243.10

We, will use ,\frac{28}{36} rule here , which states that , 28% of monthly income of my parents, should be used for  monthly housing expenses ,and 36% of gross monthly income should be used for debt purposes.

28% of $2243.78

=\frac{28}{100}*2243.78\\\\=\frac{62825.84}{100}\\\\=628.2584

= $ 628.26 (Approx)

So,my parents, monthly housing expense should not exceed ≥ $ 628.26  

8 0
3 years ago
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