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schepotkina [342]

3 years ago

14

The quantity b squared minus 4 ac is called the of a quadratic equation. If it is , the equation has no real solu

tion.

1 answer:

Colt1911 [192]3 years ago

6 0

First one is the discriminant. Second one is negative.

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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

Which One Doesn't Belong (WODB)

mina [271]

ANSWER:

[i] 4 × 10.56 = 42.2

[ii] 5 × 0.432 = 2.16 (not 2.18)

So, <u>Correct choice</u> - [B]

5 0

3 years ago

What is 2/8 x 4/5<br> a.6/40<br> b.8/40<br> c.6/13<br> d.8/13

Leya [2.2K]

The answer is B 8/40

5 0

3 years ago

Read 2 more answers

If the sum of three consecutive odd integers is at most 216, what is the largest possible value of one of those integers?

galben [10]

Answer:

yes

Step-by-step explanation:

6 0

3 years ago

Your bill from Acme Supply Company is marked "3/15, net 30." The amount of the bill is $289.95. If you pay the bill within 15 da

Sonbull [250]

Answer:

$8,698.50

Step-by-step explanation:

289.95x30= $8,695.50

6 0

2 years ago