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3 years ago

Evaluate p(-2)=x^3-4x-5

Mathematics

2 answers:

Pani-rosa [81]3 years ago

3 0

Step-by-step explanation:

$p(x) = {x}^{3} - 4x - 5 \\ p( - 2) = {( - 2)}^{3} - 4( - 2) - 5 \\ = - 8 + 8 - 5 \\ = - 5$

Goshia [24]3 years ago

3 0

Answer:

The answer would be -5.

Step-by-step explanation:

First I plugged in negative 2 for every x in the equation, which gives me:

p(-2) = (-2)³ - (4(-2)) - 5.

We solve for the exponents first, which gives us a total of -8 because we are multiplying -2 by itself 3 times. Then we multiply 4 and -2, which gives us negstive 8. However, the first -8 and the second -8 cancel out because the equation has a - sign in between the two, leaving us with only -5. -5 is the answer.

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A fruit company delivers its fruit in two types of boxes: large and small. A delivery of

Tema [17]

Answer:

Small box weighs 13.75 kg & large box weighs 15.75 kg

Step-by-step explanation:

We can write 2 simultaneous equation and solve for weight of each box.

Let weight of large box be l and small box be s.

"3 large boxes and 5 small boxes has a total weight of 116 kilograms":

$3l+5s=116$

and

"9 large boxes and 7 small boxes has a total weight of 238 kilograms":

$9l+7s=238$

Now we can solve for l in the 1st equation and put it into 2nd equation and get s:

$3l+5s=116\\3l=116-5s\\l=\frac{116-5s}{3}$

now,

$9l+7s=238\\9(\frac{116-5s}{3})+7s=238\\3(116-5s)+7s=238\\348-15s+7s=238\\348-238=15s-7s\\110=8s\\s=\frac{110}{8}=13.75$

now we plug in 13.75 into s into equation of l to find s:

$l=\frac{116-5s}{3}\\l=\frac{116-5(13.75)}{3}\\l=15.75$

5 0

3 years ago

What is the slope of the following graph?

mel-nik [20]

I dont know if this helps since no one else is answering I’d like to help
To find slope.. the M in the slope formula of y=Mx+b represents slope

So as long as you know what point on the graph represents what then it should be easy

In most cases.. finding slope is where the line meets on the x axis

6 0

3 years ago

ANSWER FAST PLEASEEE

KATRIN_1 [288]

Answer:

Linear Equation: y=-44000x+88922000

Year 2009: $526000

By year 2021, they have no more fund

Step-by-step explanation:

Slope formula is difference of y/difference of x. 79000-70200/2003-2005=

-88000/2=-44000.

To find the y intercept, x=0.

It should be year 0. 44000x2003=88132000+790000=88922000

Now put it into y=mx+b

y=-44000x+88922000

Plug in 2009.

It should equal 526000.

6 0

2 years ago

Which expression results on a rational number?

Viefleur [7K]

Where are the answers

8 0

3 years ago

Please help solving the attached image!

Triss [41]

Answer:

6,780.00 is right answer try it

7 0

2 years ago