I need help someone please help me

Answer:

f(4) is 1/2

f(x)= 4 when x is 8

The complete statements would be as:

function f(4) is 1/2 and function f(x) = 4 when domain x is 8.

The domain of the function includes all possible x values of a function, and the range includes all possible y values of the function.

We have been given that the mapping diagram shows a functional relationship.

To determine the value of f(4)

As per the given functional relationship,

If the value of the domain is 4 then the value of the respective range would be 1/2.

Therefore, the function f(4) would be 1/2.

To determine the value of x,  when f(x) = 4

As per the given functional relationship,

If the value of the range is 4 then the value of the respective domain would be 8.

Therefore, x would be 8 if function f(x) = 4 .

Hence, the complete statements would be as:

f(4) is 1/2 and f(x) = 4 when x is 8.

Learn more about the domain and the range here:

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Answer:

ifk

Step-by-step explanation:

tdf

Answer:

x = -2

Step-by-step explanation:

For this problem, we must simply solve for x.  To do this, we will need equation operations, and the use of the distributive property.

Let's work this line by line until we have the value for x:

3{-x + (2x + 1)} = x - 1

3*-x + 3*(2x + 1) = x - 1

-3x + 6x + 3 = x - 1

3x + 3 = x - 1

2x = -4

x = -2

Now we can check our answer for x by plugging back into the original equation and see if the left hand side is equal to the right hand side:

3{-x + (2x + 1)} = x - 1

3{-(-2) + (2(-2) + 1)} ?= (-2) - 1

3{2 + (-4 + 1)} ?= -3

3{2 + (-3)} ?= -3

3{-1} ?= -3

-3 == -3

Thus, we have found the solution for x to be equivalent to negative 2.

Cheers.

Answer:

Step-by-step explanation:

3{-x + (2x + 1)} = x - 1

First solve the terms in the bracket first

That's

3 (- x + 2x + 1 ) = x - 1

3( x + 1) = x - 1

Expand the terms in the bracket

We have

3x + 3 = x - 1

Simplify

3x - x = - 1 - 3

2x = - 4

Divide both sides by 2

We have the final answer as

Hope this helps you

(3, -1) -> (5, 4) = 5.38516 or 5.39 units

(2, 3) -> (4, 5) = 2.82843 or 2.83 units

(-5, 7) -> (8, 5) = 13.1529 or 13.15 units

(-2, 4) -> (3, -1) = 7.07107 or 7.07 units

The correct matching of the pair of points and the distance between them would be:

The distance between two points in a 2-dimensional Cartesian plane is given by the Euclidean distance formula, which is a direct application of Pythagoras' theorem.

The distance between the points are therefore:

(3,-1) and (5,4):

Distance = √[(5 - 3)² + (4 - (-1))²] = √[(2)² + (5)²]

= √[4 + 25] = √[29]

= 5.39

(2,3) and (4,5):

Distance = √[(4 - 2)² + (5 - 3)²] = √[(2)² + (2)²]

= √[4 + 4] = √[8]

= 2.83

(-5,7) and (8,5):

Distance = √[(8 - (-5))² + (5 - 7)²] = √[(13)² + (-2)²]

= √[169 + 4] = √[173]

= 13.15

(-2,4) and (3,-1):

Distance = √[(3 - (-2))² + ((-1) - 4)²] = √[(5)² + (-5)²]

= √[25 + 25]

= √[50]

= 7.07

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Answer:

Midpoint = (-3, 4.25)

Step-by-step explanation:

[tex]\mathrm{Midpoint\:of\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)\\\\\left(x_1,\:y_1\right)=\left(-6,\:8\right),\:\left(x_2,\:y_2\right)=\left(0,\:0.5\right)\\\\=\left(\frac{0-6}{2},\:\frac{0.5+8}{2}\right)\\\\= (\frac{-6}{2} , \frac{8.5}{2} )\\\\Simplify\\\\=\left(-3,\:4.25\right)[/tex]

Answer:

d=22

Step-by-step explanation:

Answer:

Any number raised to the zeroth power is equal to 1.

Step-by-step explanation:

x^0=1 is a number raised to the zeroth power so it is automatically equal to 1.

Answer:

Top right.

Step-by-step explanation:

So we want a line with a slope of 3 and passes through (2,5).

To do so, we can use the point-slope form.

The point-slope form is:

[tex]y-y_1=m(x-x_1)[/tex]

m is the slope and x₁ and y₁ is an ordered pair.

Thus, let m be 3, y₁ be 5, and x₁ be 2. Thus:

[tex]y-5=3(x-2)[/tex]

Our answer is the top right :)

Answer:

Answer:

Top right.

Step-by-step explanation:

So we want a line with a slope of 3 and passes through (2,5).

To do so, we can use the point-slope form.

The point-slope form is:

m is the slope and x₁ and y₁ is an ordered pair.

Thus, let m be 3, y₁ be 5, and x₁ be 2. Thus:

Our answer is the top right :)

Step-by-step explanation:

Step-by-step explanation:

Prove the LHS

Using trigonometric identities

That's

Rewrite the expression

We have

So we have

Using trigonometric identities

Rewrite the expression

That's

Reduce the expression with cos a

We have the final answer as

As proven

Hope this helps you

Answer:

[tex]\frac{1}{2}[/tex] (a + 2b)(a - b)

Step-by-step explanation:

Assuming you require the expression to be factored

Given

[tex]\frac{1}{2}[/tex] a² + [tex]\frac{1}{2}[/tex] ab - b² ← factor out [tex]\frac{1}{2}[/tex] from each term

= [tex]\frac{1}{2}[/tex] (a² + ab - 2b²) ← factor the quadratic

Consider the factors of the coefficient of the b² term(- 2) which sum to give the coefficient of the ab- term (+ 1)

The factors are + 2 and - 1, since

2 × - 1 = - 2 and 2 - 1 = + 1, thus

a² + ab - 2b² = (a + 2b)(a - b) and

[tex]\frac{1}{2}[/tex] a² + [tex]\frac{1}{2}[/tex] ab - b² = [tex]\frac{1}{2}[/tex](a + 2b)(a - b)

Answer:

csc

A

, as desired!

Step-by-step explanation:

cos

2

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A

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cos

2

A

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A

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A

,

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2

A

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)

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cos

A

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csc

A

, as desired!

I'm not going to answer the questions for you. Instead I will give you stuff taht will help you solve the problems.

A negative divided/multiplied by another negative will be positive

A negative divided/multiplied by a positive will be negative

Good luck with your math hw! If you need more help, just comment!

Answer:

Eight X plus sixty equals one hundred fifty-six

Answer:

24

Step-by-step explanation:

multiples for 3=3,6,9,12,15,18,21,24

Multiples for 8=8,16,24

The first one that matches for both is 24

Answer: 8

Step-by-step explanation:

if n represents the number:

5(n - 3) = 25

(distribute)

5n - 15 = 25

(add 15 to both sides)

5n = 40

(divide both sides by 5 to isolate "n")

n = 8

Answer:

8.6615988

Step-by-step explanation:

f(x) = 3 sin (x) / ( 1 + cos x)

To find the derivative   bottom * d/ dx top  - top d/dx bottom  all over the bottom squared

d/dx = 3 ( ( 1 + cos x)  cos x - sin x( - sin x))   / ( 1 + cos x) ^2

         = 3 ( cos x + cos ^2 x + sin ^2 x)   / ( 1 + cos x) ^2

         = 3 ( 1 + cos  x) /  ( 1 + cos x) ^2

         = 3 / ( 1 + cos x)

Let x = 4

3  /  ( 1 + cos 4)

Assuming x is in radians

3/.346356

8.6615988

Answer:

4(p+r) = q

Step-by-step explanation:

p = q/4 -r

Add r to each side

p+r = q/4 -r+r

p+r = q/4

Multiply each side by 4

4(p+r) = q/4*4

4(p+r) = q

Answer: d=9

Step-by-step explanation:

2d -15 = 3    Add 15 to both sides

     + 15 +15

2d = 18    Divide both sides by 2

d = 9

Answer:

d=9

Step-by-step explanation:

collecting like terms

2d=3+15

2d=18

d= 9

Answer:

-106

Step-by-step explanation:

[tex] - 7 + 9(2d - 3w) \\ w = 5 \\ d = 2[/tex]

Substitute the given values for w and d into the equation.

[tex] - 7 + 9(2(2) - 3(5)) \\ [/tex]

Follow the PEDMAS order of operation

[tex] - 7 + 9(4 - 15) \\ - 7 + 9( - 11) \\ = - 7 + ( - 99) \\ = - 7 - 99 = - 106[/tex]

Answer:

(-5,1)

Step-by-step explanation:

i dont really know but might be right

Answer:

   -1/2

Step-by-step explanation:

Find two points on the line

(0,-5) and (2,-6)

Using the slope formula

m = (y2-y1)/(x2-x1)

   = (-6 - -5)/( 2-0)

   ( -6+5)/( 2)

     -1/2

Answer:

5

Step-by-step explanation:

-1+5+6-5

-1-5+5+6

-6+11

5

Answer:

18 hours

Step-by-step explanation:

Let the volume of the pool be x. Since pipe A filled the  pool in 6 hours, the rate of pipe A = x / 6.

Let the rate of pipe b be y, Hose A filled the pool alone for the first 2 hours, this means that the volume filled in the 2 hours is x/6(2 hours) and the two hoses, working together, then finished filling the pool in another 3 hours for the 3 hours the volume filled is x/6(3) + y(3).  hence the total time is:

x/6(2) + x/6(3) + y(3) = x

x/3 + x/2 + 3y = x

Multiply through by 6:

2x + 3x + 18y = 6x

5x + 18y = 6x

18y = x

y = x/18

The rate of pipe B is x/18, this means it would take pipe B 18 hours to full the pool alone

Answer:

no it is 1

Step by step instructions:

since there is no number for y it will be one

Answer:

7000 degrees per sec

Step-by-step explanation:

If the arm goes 7 degrees per ms to get how many degrees it goes per sec, just multiply by 1000.

Answer: integer's are whole  numbers so a fraction,decimal and negitive numbers aren't integer's

Step-by-step explanation:

Correct Question: Find the point X on CF that is ⅕ of the distance from C to F.

*See attachment below for the numberline.

Answer:

A.) -2.2

Step-by-step explanation:

Given that C on the numberline = -4,

F on the numberline = 5

The distance from point C (-4) to point F (5) = |-4 - 5| = |-9| = 9

We are told that point X on CF, = ⅕ of the distance from point C to F. That is, X on the numberline is ⅕ of 9 = ⅕*9

⅕*9 = 9/5 = 1.8

This means, the coordinate of point X, from point C = coordinate of C + 1.8 = -4 + 1.8 = -2.2.

Therefore, the coordinate of X that is ⅕ of the distance from point C to F is -2.2.

Answer:

You can use friendly percents to find 35% of 80 by writing 35% as 25% + 10%. 25% of 80 is 80 divided by 4, which is 20. 10% of 80 is 80 divided by 10, which is 8. 20 + 8 = 28. So 35% of 80 is 28.

Step-by-step explanation:

I just did the test!!! And plus its a sample answer !!!

Answer:

0.9 is 15% of 6

work:

0.15 x 6 = 0.9

Hope this helps!

Answer:

[tex]\frac{7}{15}[/tex]

Step-by-step explanation:

Given

[tex]\frac{16-4(5)}{2(6)+8}[/tex] + [tex]\frac{2}{3}[/tex]

= [tex]\frac{16-20}{12+8}[/tex] + [tex]\frac{2}{3}[/tex]

= [tex]\frac{-4}{20}[/tex] + [tex]\frac{2}{3}[/tex]

= - [tex]\frac{1}{5}[/tex] + [tex]\frac{2}{3}[/tex]

We require the fractions to have a common denominator of 15

Multiply the numerator/ denominator of - [tex]\frac{1}{5}[/tex] by 3 and

Multiply the numerator/ denominator of [tex]\frac{2}{3}[/tex] by 5

= - [tex]\frac{3}{15}[/tex] + [tex]\frac{10}{15}[/tex]

= [tex]\frac{7}{15}[/tex]

Answer:

1/3=117......117x3=351

Step-by-step explanation:

/ is my fraction sign btw

the answer is 351!!

4+(19x)

four plus 19 and a number

Answer:

19+4x

Step-by-step explanation:

We can write an expression:

19x+4x

"Four more": +4x

product of 19 and a number: 19x