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Plot the folwing points and form the triangle ABC. Verify that the triangle is a right triangle or not?
1 ,for the following function, local maxima and local minima if any in the interval (-1,3), also determin whether the function is increasing F(x)= x^3-3x^2+5
2, Find the center (h,k) and radius r of the following circle, by hand graph the circle x^2+y^2-19x-y4=0
b, for function f(x) =x^3-x^2-x, find f(x+h)-f(x)/h
4, For the function f(x)= -x+19 if -10 <x<0
=10 if x =0
2x if x>0
5, find the function that is finally graphed after the following transformations are applied to the graph y=sqt x
1, reflect about the x axis
2, shift left 17 units
3, shift down 10 unit
6, Determine without graphing, whether the given quadratic function has a maximum value or a minimum value and then find the value. F(x) =-x^2-9x-5
7, solve the inequality. verify your result using graphing utility x^2-18x-15 greater than 0
8, use the reminder theorem to find the remainder when f(x) is divided by x-2. then use the factor theorem to determine whether x-2 is a factor of f(x). if x-2 is a factor of f, write f in factored form. f(x) = 4x^3-3x^2-8x+4
B, form a polynomial f(x) with real coefficients having the given degree and zeros. degree 6: Zeros i, 4-i,2+i
12, solve the following system of equations by substitution method -10x+y=15
x-3y=-8
13, solve the following system of by matrix method using calculator
2x+2y=6
3x+3y+3z=1
3x+4y-z=13
13, find the value of the 3 by 3 determinant
7 0 -1
4 9 2
8 -6 3
15, for the matrices , find A-B
A= 7 4 0 -3
0 11 2 3
B=-3 14 0 1
8 8 2 4
2 Answers
- ?Lv 78 years agoFavorite Answer
12, solve the following system of equations by substitution method -10x+y=15
x-3y=-8
-
x - 3y = -8
Thus; x = 3y - 8
-
Plug this into first equation
10x + y = 15
10(3y - 8) + y = 15
30y - 80 + y = 15
30y + y - 80 = 15
31y = 95
y = 3.06
-
plug this into second equation
x-3y=-8
x - 3(3.06) = -8
x - 9.2 = -8
x = 1.2
Therefore:
x = 1.2
y = 3.06
- cradyLv 45 years ago
On graph paper, decide for a factor close to the midsection and contact it the commencing place(0,0) from there plot factor A. 2 factors to the left of the commencing place, and 5 factors up. Then plot factor B. a million factor to the superb of the commencing place, and 3 factors up. Then plot factor C. One factor to the left of the commencing place, yet do not pass up any. Then connect the traces, and discover the section. Use each little line as one unit, and contact them units(section in sq. units)