Sequences
What is the 43rd term in the sequence
30, 47, 64, 81,....
744
What is the Linear Regression equation for
x 60 62 66 71 85
y 63 67 72 79 99
Round the the nearest tenth for all coefficients
y = 1.4x - 21.6
What is the equation of the line perpendicular to
5x - 6y = 48 that passes thru (-5,-2)
y = -6/5x - 8
Factor the trinomial
x2 - 3x - 28
(x-7)(x+4)
Solve
-4x + 14y = 78
2x + 7y = 59
(5,7)
What is the 21st term in the sequence
6, 12, 24, 48......
6291456
Perform a Linear Regression. (Round coefficients to nearest tenth)
x 30 40 50 60 75
y 41 52 63 74 58
What is the correlation coefficient to nearest hundredth
0.65
What is the equation of the line that passes thru
(-6,6) and is parallel to 5x + 3y = 18
y = -5/3x - 4
Factor
x2 - 7x + 10
(x-5)(x-2)
A bag contains green and red marbles, 82 in total. The number of green marbles is 3 less than 4 times the number of red marbles. How many green marbles are there?
65
f(n+1) = f(n) - 6 where f(2) = 1
what is f(11) ?
-53
Perform a Linear Regression (Round coefficients to the nearest tenth)
x 29 31 43 62
y 38 41 56 79
What is the residual value when x = 62
2.1
What is the equation of the line parallel to
x + 6y = 12 and goes thru the point (-6,-6)
y = -1/6x - 7
Factor
x2 - 4x - 96
(x-12)(x+8)
A gardener is planting two types of trees
Type A is 9 feet tall and grows at a rate of 2 inches per year
Type B is 7 feet tall and grows at a rate of 8 inches per year
After how many years are the two trees the same height?
4 years
Next = now times -5 starting at -2
what is the 13th term?
2441406250
Perform a Linear Regression (round coefficients to the nearest tenth)
x 99 81 64 49
y 36 25 16 9
Predict the value of y when x = 30 (Round to the nearest tenth)
-3.1
What is the equation of the line that passes thru (3,1) and is parallel to 5x + 3y = 6
y = -5/3x+6
Factor
x2 +17x + 72
(x+8)(x+9)
Aubrey earns $215 per week plus 8.5% of her total sales.
Robert is paid $150 plus 9% of his total sales
Determine the value of x, in dollars, that will make their weekly pay the same.
13000
An = An-1 - 3 where A4 = 3
What is A10
-15
Perform an Exponential Regression (Round coefficients to the nearest tenth)
x 1 2 3 4
y 3 7 15 36
What is the correlation coefficient rounded to the nearest hundredth
1
What is the equation of the line that passes thru (-5,3) and is perpendicular to 5x - 6y = 12
y = -6/5x - 3
Factor
3x2 + 7x + 2
(x+2)(3x+1)
Luke spends $41 on 3 drinks and 10 bags of popcorn
Chris spends $11 on 2 drinks and 2 bags of popcorn
What is the price of a bag of popcorn
$3.50