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LekaFEV [45]
3 years ago
14

Find the roots for y = 3x2 - 5x - 1

Mathematics
1 answer:
Mars2501 [29]3 years ago
8 0

Step-by-step explanation:

3x squared - 5x - 1 equals 0 using the method of completing the square he gets 3 x square - 5 x equals one and then x squared - 5/3 x is equal to 1 what does dividing should I pray then you come down you get X squared - 5/3 x into (- 5/6 or squared is equals 1/3 + but it will be negative 5/6 or squared you good like them send any you get so at the end your roots are going to be x equals 1.847 or x equals negative 0.180 results

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Write the intersection and union of N and W.
Serjik [45]

Answer:

N n W = {1,2,3,4}

N u W = {0,1,2,3,4,}

Step-by-step explanation:

N n W = {1,2,3,4}

N u W = {0,1,2,3,4,}

n - intersection means the common elements between N and W

U - represents all elements within N and W

5 0
3 years ago
Which is bigger: 78 or 0.78?
Harlamova29_29 [7]
78 is bigger since it's a whole number. 0.78 is less than 1 itself. Hope that I helped :)<span />
5 0
3 years ago
Read 2 more answers
Someone plz help me with all plz
Lyrx [107]

Answer:

Step-by-step explanation:

A simple fraction (also known as a common fraction or vulgar fraction, where vulgar is Latin for "common") is a rational number written as a/b or {\displaystyle {\tfrac {a}{b}}}  

b

a

​  

, where a and b are both integers. As with other fractions, the denominator (b) cannot be zero. Examples include {\displaystyle {\tfrac {1}{2}}}  

2

1

​  

, {\displaystyle -{\tfrac {8}{5}}}−  

5

8

​  

, {\displaystyle {\tfrac {-8}{5}}}  

5

−8

​  

, and {\displaystyle {\tfrac {8}{-5}}}  

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3 0
3 years ago
spade realty sold lots for $23240 per hectare . what is total sales values if the lots in hectare were 2,3,4 ?
MArishka [77]

Answer:

  • 2: $23,240
  • 3: $23,240
  • 4: $23,240

Step-by-step explanation:

You want to know the total sales value of 2, 3, or 4 lots per hectare, when each lot is sold for $23,240 per hectare.

<h3>Sales value</h3>

If lots are sold a the rate of $23,240 per hectare, it does not matter how many lots a hectare is divided into. Each hectare will have a total value of $23,240, regardless of the number of lots.

For example, if the hectare is divided into 10 lots, each will sell for ...

  $23,240/10 = $2324.

The total value of those 10 lots is ...

  10 × $2324 = $23,240.

Replacing 10 by N gives the same result:

  N × ($23,240/N) = $23,240

Total sales values are $23,240 for any number of lots.

6 0
1 year ago
What change(s) should Sylvia make to the equation to find the value of t in the above scenario?
finlep [7]

Answer:

Option (D).

Step-by-step explanation:

Initial population of the deer P_{0} = 4800

Decrease in the population of the deer after every 8 years = \frac{1}{2}\times (\text{Initial population})

Decrease in population is an exponential process, so the expression representing population will be,

P_{t}=P_{0}(1-r)^x

Where P_{t} is the population after 'x' slots of 8 years.

r = fraction of decrease in the population

x = \frac{\text{Number of years}}{8}

By substituting the values of r and x in the expression,

P_{t}=P_{0}(1-\frac{1}{2})^{\frac{t}{8}}

P_{t}=4800(\frac{1}{2})^{\frac{t}{8}}

Therefore, Sylvia should do few corrections in her expression.

(8) should be replaced by (\frac{1}{2}) and \frac{t}{2} should be replaced by \frac{t}{8}.

Option D. will be the answer.

5 0
3 years ago
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