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ycow [4]
3 years ago
12

Rewrite the function by completing the square. f(x) = x² +6x+87

Mathematics
1 answer:
o-na [289]3 years ago
8 0
F(x) = ( x + 3 ) ^2 + 78 is your answer.
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Six balls are selected at random without replacement from an urn containing three white balls and five blue balls. find the prob
LenKa [72]
<span>25/28 is the probability of picking two or three white balls. Given that there are only 8 balls in total and of those 8, 5 of them are blue, this problem can be turned around to "What's the probability of selecting 5 blue balls?" And then subtracting that result from 1. There are a total of 6 ways of selecting all 5 blue balls. The only difference is when the single white ball is selected. The 6 ways are BBBBBW, BBBBWB, ..., WBBBBB. So let's calculate the probability of each of those 6. 5/8 * 4/7 * 3/6 * 2/5 * 1/4 * 3/3 + 5/8 * 4/7 * 3/6 * 2/5 * 3/4 * 1/3 + 5/8 * 4/7 * 3/6 * 3/5 * 2/4 * 1/3 + 5/8 * 4/7 * 3/6 * 3/5 * 2/4 * 1/3 + 5/8 * 3/7 * 4/6 * 3/5 * 2/4 * 1/3 + 3/8 * 5/7 * 4/6 * 3/5 * 2/4 * 1/3 = ? If you look closely at each of the 6 lines, you'll realize that the numerator will always be the product of 5!3 and the denominator will be 3*4*5*6*7*8. So, let's simplify to 6*5!3/(3*4*5*6*7*8) = 6*5*4*3*2*3/(3*4*5*6*7*8) = 2*3/(7*8) = 3/(7*4) = 3/28 Now we just need to calculate 1 - 3/28 = 28/28 - 3/28 = 25/28</span>
5 0
3 years ago
Does anyone want an xbox game pass code? I literally have no use for it.
e-lub [12.9K]
Lol, I would totally say yes but no thanks!
4 0
3 years ago
The components of a vector are Ax = –10 units and Ay = 8 units. What angle does this vector make with the positive x axis? g
Mandarinka [93]

Answer:

This vector make an angle of 141° with the positive x axis

Step-by-step explanation:

Refer the attached figure

Components of vector :

A_x=-10 \\A_y = 8

We are supposed to find  What angle does this vector make with the positive x axis

tan \theta =\frac{A_y}{A_x}\\tan \theta =\frac{8}{-10}\\\theta =tan^{-1}(\frac{8}{-10})\\\theta =tan^{-1}(\frac{8}{-10})=-38.65^{\circ}

Now ,

\alpha = 180-38.65=141.35^{\circ}

So, this vector make an angle of 141° with the positive x axis

7 0
3 years ago
What is the area of the circle shown? Use 3.14 to approximate pi. Round your answer to the nearest hundredth. ​
leva [86]

Answer:

452.16

Step-by-step explanation:

12^2 x 3,14

5 0
2 years ago
GIVING BRAINLIEST! DUE TODAY!!!
o-na [289]

Answer:

0, 4, 7, 9, 11 those r the answers in order

6 0
2 years ago
Read 2 more answers
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