Subtract 3 from both sides so that the equation becomes -2x^2 + 5x - 13 = 0.
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
x = [ -b ± √(b^2 - 4ac) ] / (2a)
x = [ -5 ± √((5)^2 - 4(-2)(-13)) ] / ( 2(-2) )
x = [-5 ± √(25 - (104) ) ] / ( -4 )
x = [-5 ± √(-79) ] / ( -4)
Since √-79 is nonreal, the answer to this question is that there are no real solutions.
I think the answer is (3, 6)
Answer:
False
Step-by-step explanation:
When a constant is added to every data value in a data set?
If you add a constant to every value, the mean and median increase by the same constant. For example, suppose you have a set of scores with a mean equal to 5 and a median equal to 6. If you add 10 to every score, the new mean will be 5 + 10 = 15; and the new median will be 6 + 10 = 16.
<em><u>BRAINLIEST?</u></em>
Answer:
depends what are they
Step-by-step explanation:
Answer:
10 teachers
Step-by-step explanation:
Looking at the data provided, we can conclude that for 1800 students, there are 90 teachers.
1:20
When more teachers arrive, it then becomes, for every 1800 students, there are 100 teachers.
1:18
10 more teachers have now joined the school.
