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elena-s [515]
1 year ago
6

Solve

+ 8x - 1 = 0" alt="{2x}^{2} + 8x - 1 = 0" align="absmiddle" class="latex-formula">by completing the square
​
Mathematics
1 answer:
kramer1 year ago
4 0

Answer:

x= ± 3\sqrt{2} /2 +2

Step-by-step explanation:

Use the formula ( b/2) ^2 in order to create a new term. Solve for x by using this term to complete the square.

x= ± 3\sqrt{2} /2 +2

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PLEASE HELP ASAP!!!!!!!!
MakcuM [25]

Answer:

13.  $320

Step-by-step explanation:

First determine how much he made  using an estimate

Earnings = hours * rate per hour   We estimate 40 hours * 10 per hour

               = 40 * 10

                =400

Take home after taxes is 4/5 of his earnings

take home = 4/5 * 400

                   =320


8 0
4 years ago
A jar contains 8 large red​ marbles, 5 small red​ marbles, 7 large blue​ marbles, and 4 small blue marbles. if a marble is chose
olganol [36]
8 large red, 5 small red, 7 large blue, 4 small blue:

totally =  24 marbles

P(red)= 13/24

let A red and B large

P(A/B)= P(A∩B)/P(B)

P(B)= 15/24 =.625

P(A∩B)= 8/24 = .333

P(A/B) =.333/.625 =.533

P(B/A) =.625/.333= 1.875 


so the probability of p(large/red) is larger.




4 0
3 years ago
(06.01)The tables below show four sets of data:
Yakvenalex [24]
For it to be non-linear, the rate of change cannot be constant.  For the first table the rate is a constant 1 and the second table has a constant rate of -1.  The 3rd and 4th tables have no constant rate and thus are non-linear.

The 4th table is increasing while the 3rd table is decreasing.  

So the 3rd table, Set C, is the only non-linear negative association between x and y. 
3 0
4 years ago
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A line with a slope of -2 passes through the point (4, 7). Write an equation for this line in point-slope form.
torisob [31]

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6 0
3 years ago
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What conclusion can be drawn about lines AB and CD?
bezimeni [28]
C if you would have parallel lines those angles would be congruent
7 0
4 years ago
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