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lisabon 2012 [21]

3 years ago

9

I really need help on this question and always post it but never get a response =(

1 answer:

scoray [572]3 years ago

6 0

If both ends of a polynomial both go up or both go down, then the highest power is even
if one end of a polynomial goes up while the other goes down, or vice versa, then the highest power is odd

a positive leading coefficient will result in the right end going upwards
a negative leading coefficient will result in the left end going downwards

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11, 27, 20, 10, 13, 25, 18, 15,5<br> Minimum :<br> Magimum:<br> Q1:<br> Q2:<br> 03:

Leya [2.2K]

Answer:

min: 5 max:27 Q1: 10.5 Q2:15 Q3: 23.5

Step-by-step explanation:

6 0

4 years ago

Solve the system of equations by multiplying and adding. braceleftze −6x + 9y = −39 8x + y = 0 Write the solution as an ordered

Strike441 [17]

Answer:

$(\frac{1}{2},-4 )$

Step-by-step explanation:

the system of equations is:

$-6x+9y=-39\\8x+y=0$

First, we multiply the second equation by -9:

$-9(8x+9y=0)\\-72x-9y=0$

and now we add this to the first original equation:

$-6x+9y=-39\\-72x-9y=0\\-------\\-78x+0y=-39$

we have eliminated the y variable, so we can solve for x:

$-78x=-39\\x=-39/(-78)\\x=0.5=\frac{1}{2}$

with this value of x, we substitute it on the second of the original set of equations to find the value of y:

$8x+y=0\\8(0.5)+y=0\\4+y=0\\y=-4$

the answer as an ordered pair is:

$(\frac{1}{2},-4 )$

7 0

3 years ago

Given f(x) = 3x3 + 8x2 – 10x – 12, find f(3). A) f(3) = 84 B) f(3) = 96 C) f(3) = 111 D) f(3) = 123

andre [41]

Answer:

C) f(3) = 111

Step-by-step explanation:

f(x) = 3x^3 + 8x^2 – 10x – 12

Let x=3

f(3) = 3(3)^3 + 8(3)^2 – 10(3) – 12

=3*27+8(9) -30-12

=81+72-30-12

=111

7 0

4 years ago

The diagram below shows the number of ice cream cones sold in a day at a local ice cream shop.

V125BC [204]

Answer:

B

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Help Please!!!!!!!!!!

LenKa [72]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

$x+3y\leq 6$

Isolate the variable y

$3y\leq 6-x$

$y\leq 2-(1/3)x$

The solution is the shaded area below the solid line

Is below because the symbol of the inequality is less

Is a solid line because the line is included in the solution

The equation of the solid line is $y=2-(1/3)x$

To graph the solution find the intercepts

Find the x-intercept (value of x when the value of y is equal to zero)

For y=0, x=6 --------> point (6,0)

Find the y-intercept (value of y when the value of x is equal to zero)

For x=0, y=2 -------> point (0,2)

Graph the inequality

see the attached figure

5 0

3 years ago