Given the function F(x) = x ^ 3 + 2x - 1 , find the value f(- 2)

Answer:

x = -6

Step-by-step explanation:

3/2x + 8 = -1

3/2x = -9

x = -9 x 2/3

x = -6

Hope that helps! A Brainliest would be appreciated! :)

<3 Cin

Answer:

Step-by-step explanation:

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

well you know it's a 90°   so do you know what  Sin(90) is?   you should :D

I think this is kinda a trick question too b/c Opp here is also Hyp  

so it would like like    sin(90) = Opp / Hyp  but  that's  427/427 for this question.   seems kinda confusing  why ask it  that way.. huh  :/

sin(90) = 1

Answer:

48p^2 +4p-4

Step-by-step explanation:

Use Foil Method

First: 8p*6p=48p^2

Outsides: 8p*2=16p

Insides: -2*6p=-12p

Lasts: -2* 2=-4

simplify:

48p^2 +16p - 12p -4

ANSWER 48p^2 +4p-4

Have a great day!

Answer:

Therefore the answer is

[tex]48p^{2} + 4p - 4[/tex]

Answer:

3.5 qt or 3 qt and 2c

Step-by-step explanation:

4 cups makes 1 quart

14/4 = 3.5

Answer:

805.05333.....

Step-by-step explanation:

To find the volume of a pyramid you need to multiply the bases length, width, height , and [tex]\frac{1}{3}[/tex]

but since 20.7 is not the height then you would need to find it

So imagen a line down the very middle of the pyramid

and connect that with the 20.7in line then connect it again and that makes a triangle.

So there is a formula and it is a²+b²=c²

in this problem a is the missing height b is 11/2 which is 5.5 and c is 20.7

a²+5.5²=20.7²   --->   428.49-30.25=a²   --->398.24=a²  --->19.955951.....=a

11 x 11 x 19.960 x [tex]\frac{1}{3}[/tex] = 805.05333.....

Answer:

volume = 805.05 in³

Step-by-step explanation:

Here's my calculations.

first, finding the true height (not the slope length):

using the Pythagorean theorem:

height² = 20.7² - 5.5² = 428.49 - 30.25 = 398.24

height = √398.24 = 19.96 in

base = 11 x 11 = 121

volume = 1/3bh = 1/3(121)(19.96) = 805.05 in³

Answer: 5 (4x + 7)

Step-by-step explanation:Wouldn't it be 5(4x+7). So I guess the sign it's looking for is an addition symbol.

Answer:

1.5

Step-by-step explanation:

To find out the gradient (or the slope), we can use the formula

Gradient = (y2-y1)/(x2-x1), where (x1,y1) and (x2,y2) are any two points lying on the line.

Looking at the graph, we can take any two points and simply plug the coordinates in the equation. For instance, take (0,-2) and (2,1)

Therefore we get the gradient as (1- -2)/(2-0) = 3/2 or 1.5.

Feel free to ask any doubts you may have.

Hope this helps! :D

Answer:

The positions can be filled in 2730 ways

Step-by-step explanation:

The number of all posible ways is equal to the number of possibilities of who can become the manager, times the number of possibilities of who can become the associate manager, times the number of possibilities of who can become the assistant manager.

Now...

The number of possibilities of who can become the associate manager = 15

The number of possibilities of who can become the associate manager = 14

(it decrease by one because one person already got the position of manager)

The number of possibilities of who can become the assistant manager = 13

(based on the same logic as for the number of who can become the associate manager)

So now we know the number of ways equals...

15 x 14 x 13 = 2730  

Answer:

12%

Step-by-step explanation:

For every value of x, the initial value is increased by 1+0.12 = 100% + 12%.

meaning we are adding 12% for every value of x

The subtraction is one of the four basic arithmetic operations in mathematics. The operation subtraction is used here to determine the number of students who come to school by bus. The bus travelers are 10.

The operation subtraction represents the process of removing objects from a collection. The minus sign implies the subtraction. We can also describe subtraction as the decreasing or removing physical and abstract quantities.

The subtraction method consists of three parts of numbers, they are minuend, subtrahend and difference. The number in a subtraction sentence from which we subtract another number is the minuend, and after that it is subtrahend and last number is the difference.

Here the total present students = 50

The number of students by car = 20

The number of students by scooter = 10

The number of students by auto = 10

Then the number of students who travel by bus = 50 - ( 20 + 10 + 10) = 10

Thus the number of bus travelers are 10.

To know more about subtraction, visit;

https://brainly.com/question/57005

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Your question is incomplete most probably your full question was:

A servey was conducted of 50 high school students about how they come to school. 20 of them come by car, 10 of them by scooter and 10 of them by auto. How many come by bus?

Answer: 1/4

Step-by-step explanation:

In a stack of 24, the 2 mediums are odd and even cards in this question. This means that 1/2 the cards are even and 1/2 are odd. To get a even card once is a 1/2 chance, then to get it again is 1/2 x 1/2 chance or 1/4 chance. This is what I think.

Answer:

Step-by-step explanation:

Required equation:

Answer:

i always think of my future...i want to be a doctor when i grow up and the prospect of growing up to help other people makes me motivated to help myself to reach that goal.  Becoming a doctor is really hard work, but just focusing and visualizing my future helps me stay motivated.

Answer:

y = 25.20 m

Step-by-step explanation:

By applying tangent rule in ΔABC,

tan(25)° = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]

             = [tex]\frac{y}{BC}[/tex]

BC = [tex]\frac{y}{\text{tan}(25)}[/tex] --------(1)

Now we apply tangent rule in ΔABD,

tan(15)° = [tex]\frac{y}{BC+CD}[/tex]

tan(15)° = [tex]\frac{y}{BC+40}[/tex]

BC + 40 = [tex]\frac{y}{\text{tan}(15)}[/tex]

BC = [tex]\frac{y}{\text{tan}(15)}[/tex] - 40 -------(2)

From equation (1) and (2),

[tex]\frac{y}{\text{tan}(25)}=\frac{y}{\text{tan}(25)}-40[/tex]

[tex]\frac{y}{\text{tan}(25)}-\frac{y}{\text{tan}(25)}=-40[/tex]

[tex]y[\frac{1}{\text{tan}(25)}-\frac{1}{\text{tan}(25)}]=-40[/tex]

y(2.1445 - 3.7321) = -40

1.5876y = 40

y = 25.1953

y ≈ 25.20 m

Therefore, measure of y is 25.20 m.

Answer: 3[tex]\sqrt{2}[/tex] = 4.24 = 4.2

Step-by-step explanation:

d = [tex]\sqrt{(x_2-x_1)^{2} +(y_2-y_1)^{2}[/tex]

= fill in the distance formula

=3[tex]\sqrt{2}[/tex]

Answer:

6 gallons and 2 pints

Thank for posting the pic, it makes sense now!

Answer:

One of Africa's most efficient predators, wild dogs may help regulate prey species that in turn play a role in shaping vegetation communities. Securing a future for wild dogs, therefore, is an essential part in stemming the loss of biodiversity and preserving a healthy ecosystem.

Answer:

wild dogs may help regulate prey species that in turn play a role in shaping vegetation communities. Securing a future for wild dogs, therefore, is an essential part in stemming the loss of biodiversity and preserving a healthy ecosystem.

Step-by-step explanation:

Answer:

The sample proportion is never a point estimate of the population proportion. I need help ASAP

Step-by-step explanation:

The sample proportion is never a point estimate of a population proportion. Then the correct option is B.

The letters p stand for the population percentage and the sample proportion, respectively.

The objective of the population proportion are as follows;

The sample proportion is never a point estimate of a population proportion.

Then the correct option is B.

More about the sample proportion or population proportion link is given below.

https://brainly.com/question/24232216

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Answer: [tex]\$2400[/tex]

Step-by-step explanation:

Given

Kaylee's gross income is [tex]\$32,000\text{per month}[/tex]

[tex]25\%[/tex] is taken out for taxes and other required deduction

left amount is

[tex]\Rightarrow 3200-25\%\times 3200\\\Rightarrow 3200(1-0.25)=\$2400[/tex]

So, her take-home pay is [tex]\$2400[/tex]

Answer:

isn't a fortnight 14?

Step-by-step explanation:

Answer:

please give me brainlist and follow

Step-by-step explanation:

No. It is not possible to reflect a triangle in such a way that the result is quadrilateral with any consecutive sides that are congruent.

Answer:

A) x > -8

Step-by-step explanation:

-4x < 32

-x < 8

x > -8

pi is 3.15 so I think its pi time radius to get the area which is 3.15 times 9. that equals to 28.35

Answer:

9

Step-by-step explanation:

Hypotenuse (x) of the right triangle = [tex] \sqrt{7² \: + \: 11²} [/tex]

Hypotenuse (x) of the right triangle = [tex] \sqrt{49 \: + \: 121} [/tex]

Hypotenuse (x) of the right triangle = [tex] \sqrt{170} [/tex]

Hypotenuse (x) of the right triangle = 13

The hypotenuse (x) of the right triangle is 13 m.

Answer:14m+9=23

Step-by-step explanation:

Answer:

25 cups of tea

Step-by-step explanation:

On the x-axis, we have the number of cups of coffee plotted against the number of cups of tea which are plotted on the y-axis to represent the daily sales goals.

From the graph, when 20 cups of coffee are sold (x = 20), a corresponding sales of 25 cups of tea (y = 25) would be sold as well to meet the sales goal.

Therefore, when employees sell 20 cups of coffee, 25 cups of tea must be sold to meet their goal.

Answer:

After 3 seconds

Step-by-step explanation:

Given

[tex]h(t) = -5t^2 + 14t + 3[/tex]

Required

Time the drop will hit the ground

When the drop hits the ground,

[tex]h(t) = 0[/tex]

So, we have:

[tex]0 = -5t^2 + 14t + 3[/tex]

Rewrite as:

[tex]5t^2 - 14t - 3 = 0[/tex]

Expand

[tex]5t^2 + t - 15t - 3 = 0[/tex]

Factorize

[tex]t(5t + 1) -3(5t + 1) = 0[/tex]

Factor out 5t + 1

[tex](t -3)(5t + 1) = 0[/tex]

Split

[tex]t -3 = 0[/tex] or [tex]5t + 1 = 0[/tex]

Solve for t

[tex]t = 3[/tex] or [tex]5t = -1[/tex]

Time cannot be negative.

So:

[tex]t = 3[/tex]