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3 years ago

Can someone figure out these for me.

Mathematics

1 answer:

tatiyna3 years ago

3 0

Answer:

Algebra :(

Step-by-step explanation:

Anyway haiiiiiiii remember me Katie i saw your question lol haiii

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Which table describes the behavior of the graph of f(x) = 2x3 – 26x – 24?

In-s [12.5K]

Answer:

For x∈ {-∞,-3} y<0, below x-axis

x∈ {-3,-1} y>0, above x-axis

x∈ {-1,4} y<0, below x-axis

x∈ {4,∞} y>0, above x-axis

Step-by-step explanation:

f(x)= $2x^{3}-26x-24$

$2x^{3}-26x-24$ =0

$2x^{3}-26x-24=0\\2x^{3}-2x-24x-24=0\\2x(x^{2} -1)-24(x+1)=0\\2x(x+1)(x-1)-24(x+1)=0\\(x+1)(2x^{2} -2x-24)=0\\=> x+1=0 => x_{1}=-1\\$

$=> 2x^{2} -2x-24=0\\=>2(x^{2} -x-12)=0\\=> x^{2} -x-12=0\\=> x^{2} -4x+3x-12=0\\=> x(x-4)+3(x-4)=0\\=> (x-4)(x+3)=0\\$

$=> x-4=0\\=> x_{2}=4\\=> x+3=0\\=>x_{3}=-3\\$

For x∈ {-∞,-3} y<0, below x-axis

x∈ {-3,-1} y>0, above x-axis

x∈ {-1,4} y<0, below x-axis

x∈ {4,∞} y>0, above x-axis

7 0

4 years ago

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Micheal models an experiment. He places a model car on a tramp that can be adjusted to different heights. Each time the model ca

Nadusha1986 [10]

Answer:A

Step-by-step explanation:

because i just know iot is

8 0

2 years ago

Evaluate the expression

Setler [38]

-53

Step-by-step explanation:

$\frac{( { - 8)}^{2} }{5 - 9} - ( - 1)^2 + 4( - 9) \\ = \frac{64}{ - 4} - 1 - 36 \\ = - 16 - 1 - 36 \\ = - 52 - 1 \\ = - 53$

5 0

4 years ago

The probability of a certain brand of battery going dead within 15 hours is. Noah has atoy that requires 4 of these batteries. H

Delicious77 [7]

Question:

The probability of a certain brand of battery going dead within 15 hours is 1/3. Noah has a toy that requires 4 of these batteries. He wants to estimate the probability that at least one battery will die before 15 hours are up.1.Noah will simulate the situation by putting marbles in a bag. Drawing one marble from the bag will represent the outcome of one of the batteries in the toy after 15 hours. Red marbles represent a battery that dies before 15 hours are up, and green marbles represent a battery that lasts longer.How many marbles of each color should he put in the bag? Explain your reasoning.

Answer:

The number of marbles of each color that should be present in the bag is;

1 red marble and 2 green marbles

Step-by-step explanation:

Here, we note that the probability of a battery going dead = 1/3 and the

Therefore if the red marbles represent that a battery dies before 15 hours then the probability of picking the red marble should be 1/3. That is if there is only one red marble in the bag, the probability of picking the red will be 1/3 when there are other 2 green batteries in the bag

That is there should be 1 red marble and 2 green marble in the bag.

4 0

3 years ago

PLZ need help ASAP..THX

KIM [24]

The two functions are

y= f(x), ------------(1)

g(x)= f(x+2)---------(2)

⇒Consider a point (a,b) on the curve.It will satisfy (1).

b = f(a)

Now the point a is translated by 2 units right in horizontal direction and there is no vertical shift.

Coordinate of new point = (a+2,b)

Putting the value of new coordinate in equation (1), we get

b = f(a+2)

which gives equation (2), which is

g(x)= f(x+2)

Option (3) is correct,which is, the graph of g(x) is graph of f(x) translated 2 units right.

8 0

3 years ago

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