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vodka [1.7K]
2 years ago
14

Help Please... Factor the expression. 3x^2 - 192

Mathematics
2 answers:
mihalych1998 [28]2 years ago
3 0
The factored expression would look like this : 3(x+8)(x-8)
Rashid [163]2 years ago
3 0
The answer is 3(x-8)(x+8)
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Which statements about the graph of the function f(x) = –x2 – 4x + 2 are true? Check all that apply. The domain is {x|x ≤ –2}. T
Leto [7]
The graph of the function f(x) =-x^2-4x + 2 is parabola with branches going down in the negative direction of y-axis. 
The vertex of parabola has coordinates:

x_v=\dfrac{-(-4)}{2\cdot(-1)}=-2, \\ y_v=-(-2)^2-4\cdot (-2)+2=-4+8+2=6

Then you can conclude that all x are possible, that means that the dimain is x\in (-\infty,\infty) and the maximum value of y is at the vertex, then the range is (-\infty,6].The function is increasing for x<-2 and decreasing for x>-2 (since vertex is the maximum point).
When x=0, y=2. 
Hence,
<span>The domain is {x|x ≤ –2} - false.
</span>
<span>The range is {y|y ≤ 6} - true.
</span>
<span>The function is increasing over the interval (–∞ , –2) - true.
</span>
<span>The function is decreasing over the interval (−4, ∞) - false.
</span>
<span>The function has a positive y-intercept - true.</span>









8 0
3 years ago
Read 2 more answers
What is the area of a trapezoid if the base is 5, 17, 5 and height is 4
Genrish500 [490]

Answer:

44 units squared.

Step-by-step explanation:

The formula for area of a trapezoid is:

a  =  \frac{ b^{1} +  {b}^{2} }{2} h

a = missing area

b1 = short base (5)

b2 = long base (17)

h = height (4)

(5 + 17) ÷ 2 = 11

11 × 4 = 44

area = 44

8 0
3 years ago
Read 2 more answers
Find the value of x and y
Lesechka [4]

Answer:

x = 33, y = 17

Step-by-step explanation:

1) the sum of all the angles in any triangle is 180 degrees

2) when 2 lines intersect, the angles opposite each other are equal

3) the sum of any angles that break up one side of a straight line is 180

7 0
3 years ago
What is the solution to 4(s – 3) – 4= 4+8(2 – s)?<br> Enter your answer in the box.<br> S=
zubka84 [21]

Answer:

11

Step-by-step explanation:

4(s-3)-4=4+8(3)

=4+24

=28

4s-12-4=28

4s-16=28

4s=28+16

4s=44

s=44/4

s=11

4 0
3 years ago
If h = 21 units and r = 7 units, what is the volume of the cone shown above?<br> Use 3.14 for .
icang [17]
Both same unit so multiply your numbers to get a great digits
3 0
3 years ago
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