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bazaltina [42]
2 years ago
8

(5x2+14x-15)-(3x2+5x+7) simplify

Mathematics
2 answers:
sleet_krkn [62]2 years ago
8 0

Answer:

-241

Step-by-step explanation:

Hope this helps

Lina20 [59]2 years ago
7 0

Step-by-step explanation:

  • (5 × 2 + 14x - 15) - (3 × 2 + 5 + 7)
  • (10 + 14x - 15) - (3 × 2 + 5x + 7)
  • (10+14x-15) - (6 + 5x+7)
  • (- 5+14x) - (6+5x+7)
  • (-5+14x)-(13+5x)
  • - 5+14x (13+ 5x)
  • - 5 + 14x - 13 - 5x
  • - 18+14x - 5x

Answer:- 18 + 9x

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A survey of 1282 student loan borrowers found that 440 had loans totaling more than $20,000 for their undergraduate education. G
Xelga [282]

Answer:

The 98% confidence interval of the proportion = (0.312, 0.374)

Step-by-step explanation:

(Give answers accurate to 3 decimal places.)

The formula for Confidence Interval of Proportion is given as:

p ± z × √p(1 - p)/n

Where p = Proportion = x/n

x = 440

n = 1282

p = 440/1282 = 0.34321372854

Approximately = 0.343

z = z-score of 98 % confidence interval

= 2.326

Confidence Interval =

= 0.343 ± 2.326 × √0.343(1 - 0.343)/1282

= 0.343 ± 2.326 × √0.225351/1282

= 0.343 ± 2.326 × √0.00017578081

= 0.343 ± 2.326 × 0.01325823555

= 0.343 ± 0.03083865589

0.343 - 0.03083865589

= 0.31216134411

Approximately = 0.312

0.343 + 0.03083865589

= 0.37383865589

Approximately to = 0.374

Therefore, the 98% confidence interval of the proportion = (0.312, 0.374)

6 0
2 years ago
Write an equation in slope-intercept form of the line that passes throught the point and given slope:
ludmilkaskok [199]
 y = mx + b
5 = 12(-3) + b
5 = -36 + b
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y = -3x + 41
6 0
2 years ago
Find the range. 83, 71, 62, 86, 90, 95, 61, 60, 87, 72, 95, 74, 82, 54, 99, 62, 78, 76, 84, 92
galina1969 [7]

Answer: 45

Step-by-step explanation: The range is the difference between the greatest number in the data set and the least number in the data set which in this case is 99 - 54 or 45. So the range of this data set is 45.

6 0
3 years ago
Read 2 more answers
If f(x) = x2 – 1 and g(x) = 2x – 3, what is the domain
Ainat [17]
Begin by finding the lowest point the quadratic equation can be, the vertex; 

x²-1= is just a translation down of the graph x²

vertex; (0, -1) and since the graph of x² would extend to infinity beyond that point, we can say {x| x≥0} for domain and {y| y≥-1}. 

For the linear equation, it is possible to have all x and y values, therefore range and domain belong to all real numbers. 

Hope I helped :) 
5 0
3 years ago
The diameter of a circle is 18 cm. Find its circumference in terms of pie​
Rudik [331]

im sorry but can you show more so i can help you                                          Step-by-step explanation:

7 0
2 years ago
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