Find the value of f (x)

F(x) = 2 x f(4) = .........

A. 8
B. -6
C. 10

Answers

Answer 1

Answer:

F(4)=8

Step-by-step explanation:

F(x)=2(x)

F(4)

Replace x with 4

F(4)=2(4)

Multiply

F(4)=8


Related Questions

3 cups of water are needed to fillup the bottle completely. 10 cups of water are needed to fill up the bucket completely. Each cup has a capacity of 305 ml. What is the capacity of the bucket? Write your answer in litres and mililitres

Answers

Answer:

The bucket has a capacity of 3.05 Liters

Step-by-step explanation:

305ml × 10 = 3,050ml

3,050ml = 3.05L

A group of 45 students went to a basketball game.
Each student bought a candy and a popcorn. Write 2
equivalent expressions to represent the total spent at
the basketball game.

Answers

Answer:

See below. (C*a) + (P*b) = M

Step-by-step explanation:

amount of students = 45

amount of candy per student = 1

amount of popcorn per student = 1

Let "S" be the total amount of students

Let "C" be the total amount of candy

Let "P" be the total amount of popcorn

Let "T" be the total number of snacks

Let "a" be the price per candy

Let "b" be the price per popcorn

Let "M" be the total amount of money spent at the game

The price of the candy is unknown.

The price of the popcorn is unknown.

The total amount of money spent at the game is unknown.

(C*a) + (P*b) = M

I am not sure what you are asking for but, here is what I drew up for you. Hope this helps!

Find the value of x.

Answers

Answer:

x = 27.048

Step-by-step explanation:

sin(x) = 7/15

15 sin(x) = 7

15sin = 0.2588, so

0.2588(x) = 7

Then, divide both sides by 0.2588

x = 27.048

Solve for x and y.

Will give Brainliest

Answers

Answer: x=sqrt21, y=sqrt70

Step-by-step explanation:

27) Jim and his uncle went to the circus. Together they spent $30, 4/15 of that for a bus ride, 2/5 for food, 7/30 for tickets, and the rest on souvenirs. What part of their money did they spend on souvenirs?

Answers

Answer:

3 dollars

Step-by-step explanation:

4/15 of 30 = $8
2/5 of 30 = $12
7/30 of 30 = $7

8 + 7 + 12 = $27

30 - 27 = $3

They only had 3 dollars left after spending everything else they had.

Answer:

3/30

Step-by-step explanation:

4/15 so times 15 by 2 and 4 by 2 to get 8/30

leave 7/30 alone

2/5 five times 6 is 30, since you multiplied 5 by 6 you have to do 2 x 6 which is 12, 12/30

now you can add bc a common denominator 12 + 7 + 8 = 27

30 - 27 = 3, so 3/30ths was spent on souvenirs.

Factorise fully 5a² - 125b²

Answers

Answer:

5(a+5b)*(a-5b)

Step-by-step explanation:

Answer:

5 (a+5b)( a−5b)

Step-by-step explanation:

A room has an area of 437 square feet. One dimension is 4 feet more than the other. Find the dimensions of the room

Answers

Answer:

1,748

Step-by-step explanation:

Measure all three aspects--the length, width and height--of an object to get a three-dimensional measurement.

D = 437FT × 4 FEET

multiply the values in order to get the dimension

=> 1,748

Carmen deposited $6,000 into a savings account that earns 2.8% interest compounded annually. How much will she have in her account (total) at the end of 3 years?

Answers

To help Carmen find the total after 3 years

We'll have to use the annual compound interest formula: A = P(1 + r)ⁿ

A = Final balance (?)

P = Principal balance (6000)

r = Rate (0.028)

n = years (3)

A = 6000(1 + 0.028)³

A = 6000(1.028)³

A = 6000(1.086373952)

A = 6518.243712

Round that to the nearest cent, and we get $6,518.24 as the answer.

1.) WHat are the real zeros of the function
y=x(x-2)(x+3)


2.) Find all of the solutions of the equation
x^3 -x^2 +5x - 5 = 0

Answers

Problem 1

Answer: The roots are x = 0, x = 2, x = -3

------------------

Explanation:

The term "root" is another way of saying "zeros of a function" or "x intercept".

To find the roots, set each factor equal to zero and solve for x.

x-2 = 0 solves to x = 2, while x+3 = 0 solves to x = -3

========================================================

Problem 2

Answer: Roots are x = 1, [tex]x = i\sqrt{5}[/tex] and [tex]x = -i\sqrt{5}[/tex]

------------------

Explanation:

Factor by grouping

x^3 - x^2 + 5x - 5 = 0

(x^3 - x^2) + (5x - 5) = 0

x^2(x - 1) + 5(x - 1) = 0

(x^2 + 5)(x - 1) = 0

x^2 + 5 = 0 solves to the roots [tex]x = i\sqrt{5}[/tex] and [tex]x = -i\sqrt{5}[/tex]

x-1 = 0 solves to x = 1

Note: [tex]i = \sqrt{-1}[/tex]

1) Wat are the real zeros of the function y=x(x-2)(x+3):

Answer: [tex]x_{1} = -3 ; x_{2} = 0; x_{3} =2[/tex]

To find the x-intercept, set y = 0:

x( x -2 ) ( x + 3) = 0

Apply the Zero Product Property:

x - 2 = 0 or x + 3 = 0

x = 2 or x = -3

Find the union of solutions:

x = 0 or x = 2 or x = -3

2) Find all of the solutions of the equation

x^3 -x^2 +5x - 5 = 0

Answer: x = 1 or no real solution

Apply grouping:

[tex](x^{3} -x^{2} ) + *(5x-5)=0[/tex]

Factor out common factor:

[tex]x^{2} (x-1) +5(x-1)=0[/tex]

Factor out --> [tex](x-1)(x^{2} +5) =0[/tex]

Apply zero product property:

[tex]x - 1 =0[/tex] or [tex]x^{2} +5 =0[/tex]

x - 1 = 0

Rearrange variables to the left side of the equation--> x=1 or no real solutions.

Find the value of x to the nearest tenth.

Answers

Answer:

x = 57.8°

explanation:

opposite length : 11hypotenuse length : 13

[tex]\sf sin(x)= \dfrac{opposite}{hypotensue}[/tex]

[tex]\hookrightarrow \sf sin(x) = \dfrac{11}{13}[/tex]

[tex]\hookrightarrow \sf x = sin^{-1}(\dfrac{11}{13} )[/tex]

[tex]\hookrightarrow \sf x = 57.8[/tex]

Answer:

57.8° (nearest tenth)

Step-by-step explanation:

Use the sine trig ratio:

[tex]\mathsf{\sin(\theta)=\dfrac{O}{H}}[/tex]

where:

[tex]\theta[/tex] is the angleO is the side opposite the angleH is the hypotenuse

Given:

[tex]\mathsf{\theta=x}[/tex]O = 11H = 13

[tex]\implies \mathsf{\sin(x)=\dfrac{11}{13}}[/tex]

[tex]\implies \mathsf{x=\arcsin\dfrac{11}{13}}[/tex]

[tex]\implies \mathsf{x=57.8 \textdegree \ (nearest \ tenth)}[/tex]

Find an equation for the parabola with focus (-4, 0)​ and directrix x=4.
HELP!

Answers

Answer:

[tex]y = - \frac{ {x}^{2} }{16} [/tex]

Step-by-step explanation:

First, notice the diretcrtirx is a negative horinzontal lie so this means we have a parabola facing downwards

Equation of a Parabola with center (h,k) >

[tex](x - h) {}^{2} = - 4p(y - k)[/tex]

Where p is the distance of the vertex to focus/ or distance to vertex to directrix

This emans that the vertex is halfway of (-4,0) and x=4.

Since this is a upwards parabola, the y value that lies on focal axis doesn't change so know this means that

The vertex is halfway between (-4,0) and (4,0).

So the vertex is (0,0).

Plugging that in we get,

[tex] {x}^{2} = - 4py[/tex]

The distance to the vertex or either the focus or directrix is 4 so p=4

[tex] {x}^{2} = - 4(4)y[/tex]

[tex] {x}^{2} = - 16y[/tex]

[tex]y = - \frac{ {x}^{2} }{16} [/tex]

five times a number, n, subtracted from 100

Answers

If you’re looking for an equation, it would be y=100-5n.

Answer:

100 - 5n

Step-by-step explanation:

100 - 5n

Hope this helps!

Help me with number 2 please

Answers

Answer:

One solution

(2,0) is the point

Step-by-step explanation:

If the graphs of the equations intersect, then there is one solution that is true for both equations.

When the lines intersect, the point of intersection is the only point that the two graphs have in common, so the coordinates of that point are the solution for the two variables used in the equations.

The point of intersection is (2,0), because that is the point that both lines intersect at.

find the value of x ​

Answers

Answer:

30°

Step-by-step explanation:

AB || DC (Given)

-> AB || DF

-> x = 30° (alternate angles)

solve for m
2= m/2 -7
thanks in advance

Answers

The answer is.

M=18

Thanks .

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS

Answers

Answer:

It would be -6, 5 but i dont see that for an option so pick -6,-5

Step-by-step explanation:

plsssss
Variables y and x have a proportional relationship, where y = 9 when x = 3. What is the value of x when y = 36? Enter your answer in the box. x =

Answers

3/9 = x/36
Now cross multiply
108 = 9x
X = 12
DIRECT VARIATION

» Variables y and x have a proportional relationship, where y = 9 when x = 3. What is the value of x when y = 36? Enter your answer in the box.

Answer:[tex] \underline{ \boxed{ \orange{\bold{ 12}}}}[/tex]

— — — — — — — — — —

Steps-by-step explanation:

Since variables y and x have a proportional relationship, then the equation is in the form y=kx.

Given: y = 9 when x = 3.

First, we need to find the constant of variation (k) by substituting the given to the equation of variation.

[tex] \tt y = kx \\ \tt \: \: \: \: 9 = k(3) \\ \tt k= \frac{9}{3} \\ \tt k= \blue{3}[/tex]

The constant of variation (k) is 3. So, find the value of x when y = 36.

[tex] \: \: \: \: \tt y = 3x \\ \tt \: 36 = 3x\\ \tt \: \: \: \: \: x = \frac{36}{3} \\ \tt \: \: \: \: \: \: \: x= \underline{ \boxed{ \purple{ \tt{12}}}}[/tex]

Hence the unknown value (x) is 12.

The mean can be found when you add all the numbers in a set, and then divide that sum by the amount of numbers given. Find the average tree growth of four Douglas Fir trees: 2.2 in., 1 1/5 in., and 1 1/2 in.​

Answers

Answer:

49/30

Step-by-step explanation:

To find the mean, add up 2.2 + 1 1/5 + 1 1/2 to get 49/10

Then divide that by 3 (it says four Douglas trees but you only put 3 types)

49/10 divided by 3 is 49/10 times 1/3, which is 49/30

**PLS HELP ILL GIVE BRAINLIEST WHOEVER ANSWERS THESE RIGHT THE FASTEST!**

Answers

Answer:

1. -2 × -6

2. -2 × -y

3. -2× -6 + -2 × -y

4. -2 × -6 - -2 × -y

Answer:

1. 12

2. 2y

3. 12 + 2y

4. 12 - 2y

hi pls help will mark as brainlist ​

Answers

Answer:

35m

Step-by-step explanation:

The formula to find the volume of right circular cylinder is: V=πr^2*h

We know the following info:

V = 5390m^3

r = 7m

So the equation would be 5390 = 3.14*7^2*h

so h = 35m

Answer:

h ≈ 35.01m

Step-by-step explanation:

V=Лr²h

r =7m

v = 5390³

h= V / Лr²

h= 5390 / Л7²

=35.01409m

Past due, need some help.

Answers

Answer:

1. pt. A) 96:38

pt. B) Because they are the same values, just flipped

2. pt. A) 38:46

pt. B) 19:23

Step-by-step explanation:

hope this helped

Which expression is equivalent to 5y–3? startfraction 1 over 125 y cubed endfraction startfraction 1 over 5 y cubed endfraction startfraction 5 over y cubed endfraction startfraction 125 over y cubed endfraction

Answers

The expression that is equivalent to 5y⁻³ is start fraction 5 over y cubed end fraction.

What is an Expression?

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

In order to find the expression that is equivalent to 5y⁻³, we need to use exponential properties,

[tex]5y^{-3}\\\\=\dfrac{5}{y^3}[/tex]

Hence, the expression that is equivalent to 5y⁻³ is start fraction 5 over y cubed end fraction.

Learn more about Expression:

https://brainly.com/question/13947055

Answer:

option C 5/y^3

Step-by-step explanation:

PLS HELP ME I WILL MARK THE BRAINLIEST

Answers

Answer:

∠ ABC = 51°

Step-by-step explanation:

the inscribed angle ABC is half the measure of its intercepted arc AC , so

5x + 11 = [tex]\frac{1}{2}[/tex] (16x - 26) ← distribute parenthesis

5x + 11 = 8x - 13 ( subtract 8x from both sides )

- 3x + 11 = - 13 ( subtract 11 from both sides )

- 3x = - 24 ( divide both sides by - 3 )

x = 8

Then

∠ ABC = 5x + 11 = 5(8) + 11 = 40 + 11 = 51°

A shark can swim 30 mph how far can he travel per minute

Answers

Answer:

1/2 mile

Step-by-step explanation:

30miles / 60 minutes = (30/60) miles / 1 minute = (1/2) mile / 1 minute

A rectangular prism has
the surface area of
460 m2. The length is 5
cm and the height is 12
cm. What is the width of
the rectangular prism?

Answers

Based on the calculations, the width of the rectangular prism is equal to 1,352.91 meters.

Given the following data:

Surface area of rectangular prism = 460 [tex]m^2[/tex]Length of rectangular prism = 5 cm to m = 0.05 m.Height of rectangular prism = 12cm to m = 0.12 m.

The surface area of a rectangular prism.

Mathematically, the surface area of a rectangular prism is given by this formula:

[tex]A =2(wl+hl+hw)[/tex]

Where:

A is the surface area.

l is the length.w is the width.h is the height.

Substituting the given parameters into the formula, we have;

[tex]460 =2(w0.05+0.12(0.05)+0.12w)\\\\460=2(0.17w+0.006)\\\\460=0.34w+0.012\\\\0.34w=460-0.012\\\\0.34w=459.988\\\\w=\frac{459.988}{0.34}[/tex]

w = 1,352.91 meters.

Read more on rectangular prism here: brainly.com/question/3867601

Is X=4 a solution to the equation 7 + X = 15

YES OR NO

Answers

Answer:

[tex]7 + x = 15 \\ x = 15 - 7 \\ x = 8[/tex]

So; No

What is the equation of the line that passes through the point (6,-7) and has a slope of -2

Answers

Answer:

y = -2x + 5

Step-by-step explanation:

to figure this out you may plug this equation into y = mx + b with b being the unknown

this goes to

-7 = -2(6) + b

then multiply 6 to -2

-7 = -12 + b

then add 12 to both sides

5 = b

b is 5 so that means the equation is

y = -2x + 5

im stuck on this problem. can someone please help me.

Answers

The graph looks like an absolute function.

If we were to compare the function [tex]y= |x|[/tex] to this graph (see image attached), we see that the function in the graph has only shifted two to the right.

To write in function form, when shifting the graph horizontally

add within the function --> move the graph to the leftsubtract from within function --> move the graph to the right

In this case, since we want to shift over two spots horizontally, we get the function is

 y = |x -2|

Now we want to find the function that is increasing and decreasing over the same interval.

The only function that looks the most similar is y = 4|x-2|.

The reason for that is because the y = 4|x-2| is just a stretched version of y= |x-2| meaning the point where it is increasing or decreasing should stay the same. Look at the second image I attached.

Hope it helps!

What is the GCF of 15 and 48?

Answers

Hello.

First, let's clarify what the G.C.F. means.

It means "Greatest Common Factor"

So, let's find the Greatest Common Factor of 15 and 48.

First, let's list all the factors of 15:

1, 3, 5, 15

Here are the factors of 48:

1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Therefore, the GCF of 15 and 48 is 3.

I hope it helps.

Have a nice day.

[tex]\boxed{imperturbability}[/tex]

Use the figure shown.
1. Name a pair of adjacent angles.
2. Name a pair of complementary angles.
3.Name a pair of supplementary angles.
4. Name a pair of vertical angles.

Answers

Answer:

Step-by-step explanation:

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