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Ray Of Light [21]

3 years ago

7

Petra earned scores 30/32, 29/31, and 28/30 on her last three English quizzes .Find each score as a decimal rounded to the neare

st thousandth. Then arrange the fractions in order from least to greatest. PLEASE HELP ME I WOULD REALLY APPRECIATE IT!!

1 answer:

ASHA 777 [7]3 years ago

4 0

You have to solve it by multiple the numbers

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Find the probability of at least three successes in six trials of a binomial experiment in which the probability of success is 5

Amanda [17]

Answer:

31.3%

Step-by-step explanation:

Start by doing the binomial expansion of (x+y)^6 where x represents success. This is

(x^6y^0) + 6(x^5y^1) +15(x^4y^2) +20(x^3y^3) +15(x^2y^4) +6(x^1y^5) +(x^0y^6)

We are interested in the x^3y^3 term which represents exactly 3 successes. Since the probability of success and failure are both .5 we should be able to figure this out just using the coefficients of the terms which is

20/64 = .3125 which is 31.25% Rounding yo the nearest tenth gives us

8 0

3 years ago

Factor x2 – 6x – 7.

SpyIntel [72]

You can make an cb chart. so to equal -6 you need the numbers -7, 1. so now the equation is ( x - 7 )( x + 1 ). if you want to solve it set it equal to 0 and solve.

5 0

3 years ago

In a two collum proof the left column states your reasoning

dsp73

Yes the left states your reasoning

4 0

3 years ago

Read 2 more answers

How many, whole numben are there between<br>32 and 53 ?

Ulleksa [173]

Answer:

21

Step-by-step explanation:

5 0

3 years ago

Darla has four buckets shaped like cylinders she is filling the buckets with water by using a scoop shaped like a cone if the co

padilas [110]

Answer:

12 Scoops

Step-by-step explanation:

Darla has 4 Cylinder Shaped Buckets

Volume of the Cylinders $=4*\pi r^2h$

The scoop is cone shaped and:

Volume of the Cone Scoop $=\frac{1}{3} \pi r^2h$

Since the radius and height of the cone scoop and cylindrical buckets are the same,

The number of Cone Scoops it will take to fill the buckets is:

Total Volume of Buckets/Volume of Cone Scoops

$=\dfrac{4*\pi r^2h}{\frac{1}{3} \pi r^2h} \\=4 \div \frac{1}{3}\\=12$

It will take 12 Scoops to fill the 4 buckets.

5 0

3 years ago