The solutions to the quadratic equations are:
a)
b) x = -8, x = 5.
A quadratic function is given according to the following rule:
The solutions are:
In which:
Item a:
The coefficients are a = 5, b = -6, c = -2, hence:
Item b:
The equation is:
x² + 3x = 40
x² + 3x - 40 = 0.
It can be simplified as follows:
(x - 5)(x + 8) = 0.
Hence the solutions are:
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Answer:
The least they will have to pay is 235 dollars.
They will have to pay 15 more dollars next year. (250 dollars)
Step-by-step explanation:
25x3=75
40x4=160
75+160=235
25x2=50
40x5=200
50+200=250
74.6 - 54.5 = 20.1
20.1/2 = 10.05
54.5/74.6 = 0.731 (rounded)
Apple makes 10.05 billion more every year. The percent growth rate is about 73.1% a year.
Answer:
Dialation is to make the shape smaller or larger. It stays in the same place, but it changes size.
Answer:
x = 30.63
Step-by-step explanation: