pls help me
1. f:A->B f(x)=4x-2
A={-2, -1, 0, 1, 2} B=?
2. f:A->B f(x)=x+1
B={-2, -1, 0, 1, 2} A=?

Answer:

Step-by-step explanation:

This is a Pythagorean Theorem Question

c^2 = a^2 + b^2

c= sqrt(5)

a = x

b = x            This is an isosceles right triangle. The vertical side and the horizontal side are equal.

x^2 + x^2  =  sqrt(5)^2

2x^2 = 5                           Divide both sides by 2

x^2 = 5/2                          Take the sqrt of both sides.

√x^2 = √5 / √2                Multiply right side by √2 on both top and bottom

x = √5*√2 / √2*√2

x = √10 /2

Answer:

$5 per week/hour

Step-by-step explanation:

well I know people might have 7 days of the week so I am thinking

35/7=5

Step-by-step explanation:

[tex]a^{ \frac{4}{5} } . \sqrt{a {}^{21} } = a^{n} \\ {a}^{ \frac{4}{5} } . {a}^{ \frac{21}{2} } = {a}^{n} \\ {a}^{ \frac{113}{10} } = {a}^{n} \\ n \: = \frac{113}{10} [/tex]

Answer:

b =  4a

Step-by-step explanation:

[tex]a = \frac{b}{4}[/tex]

[tex]b = 4a[/tex]

changing sides changes sign division to multiplication.

Answer:

213

Step-by-step explanation:

z/6=36

z/6=36/1

cross multiply

z×1=36×6

z=216

[tex]\huge\boxed{\boxed{\maltese\pmb{Hi!}}}[/tex]

[tex]\text{Let's Solve this Problem!}[/tex]

The next step in solving this equation is multiplying both sides by 6:

[tex]\rm\displaystyle\frac{z}{6}=36[/tex]

[tex]\rm{z=216}[/tex] (Answer)

__________

Additional note

Remember the Golden Rule of Algebra:

Whatever we do to one side, we do to the other.

____________

Hope it helps.

~Just a determined gal

#HaveANiceDay

[tex]\bf{-MistySparkles^**^*[/tex]

Answer:

ur missing a x in the equation

Answer:

x = 8

y = -8

Step-by-step explanation:

1. у = - 2х +8

2. - 7x - бу = - 8

Substitute y in equation 2 using equation 1

-7x - 6(-2x+8) = -8

-7x -(-12x) - 48 = - 8

Two negatives = positive

-7x + 12x - 48 = -8

5x - 48 = - 8

Plus 48 on both sides

5x = 40

Isolate x by dividing both sides by 5

x = 8

Using the value of x, find what y is.

y = -2(8) + 8

y = -16 + 8

y = -8

Hope this helps :)

Have an awesome day!

Answer:

Its D.

Step-by-step explanation:

Schmack me wit da brainliest

The result of John's multiplication in standard form is

3.12 × 10⁹

To express the result in standard form, we need to represent it as a number between 1 and 10 (inclusive) multiplied by a power of 10.

In other words, the number should have the form:

a × 10ⁿ

where "a" is a decimal number greater than or equal to 1 and less than 10, and "n" is an integer representing the power of 10.

Let's calculate the result of John's multiplication:

= 400,000 × 7,800

= 3,120,000,000

Now, we need to convert this number into standard form. To do that, we will move the decimal point to the left until there is only one non-zero digit to the left of the decimal point.

The number of places we move the decimal point will give us the power of 10.

In this case, we will move the decimal point three places to the left:

3.120000000 × 10⁹

Now, we can simplify the number by removing trailing zeros:

3.12 × 10⁹

So, the result of John's multiplication in standard form is

3.12 × 10⁹

Learn more about multiplication click;

https://brainly.com/question/11527721

#SPJ3

Answer:

f(x) and g(x) have the same y-intercept

Step-by-step explanation:

the y-intercept is the point, where the graph intersects the y-axis.

and what is the definition of the y-axis ? it is

x = 0

for all the values up and down the y-axis, their x-coordinate is 0.

so, to find the y-intercept we find the functional value for x = 0.

and that is here in both cases : -32

and the y-intersect point is therefore for both functions:

(0, -32)

Answer:

Step-by-step explanation:

Black Triangle

Rotate the triangle around the origin 90° counterclockwise.

(x, y) → (-y, x)

A(2, 5), B(-7, 5) C(-3, -2) →A'(-5, 2), B'(-5, -7) C'(2,- 3)

Blue Triangle

Rotate the triangle around the origin 180° counterclockwise.

(x, y) → (-x, -y)

A(2, 5), B(-7, 5) C(-3, -2) →A'(-2,-5), B'(7,- 5) C'(3, 2)

Green Triangle

Rotate the triangle around the origin 270° counterclockwise.

(x, y) → (y, -x)

A(2, 5), B(-7, 5) C(-3,-2) →A'(5, -2), B'(5, 7) C'(-2, 3)

Orange Triangle

Try this option:

1) the rule 1: if f(x)=u(x)*v(x), then f'(x)=u'(x)*v(x)+u(x)*v'(x), where u(x)=x³, v(x)=ln(cos²x);

2) the rule 2: if f(x)=u(v(x)), then f'(x)=u'(v(x))*v'(x), where u(v(x))=ln(cos²x), v(x)=cos²x;

3) according to the rules above:

f'(x)=(x³)'*ln(cos²x)+x³*(ln(cos²x))';

[tex]f`(x)=3x^2ln(cos^2x)+x^3*\frac{1}{cos^2x}*(-2sinxcosx)=3x^2ln(cos^2x)-2x^3tanx.[/tex]

Answer: 3x²ln(cos²x)-2x³tanx.

Answer:

x = -6, 10

Step-by-step explanation:

Hi there!

[tex]f(x)=x^2-4x-60[/tex]

Let f(x) = 0:

[tex]0=x^2-4x-60[/tex]

Factor the equation:

[tex]0=x^2-10x+6x-60\\0=x(x-10)+6(x-10)\\0=(x+6)(x-10)[/tex]

The zero-product property tells us that when two terms are multiplied and they equal zero, one of the terms must be zero.

Therefore, either (x+6) or (x110) is equal to 0:

x+6 = 0 ⇒ x = -6

x-10 = 0 ⇒ x = 10

Therefore, the zeros of f(x) are -6 and 10.

I hope this helps!

Answer: -6 and 10

Step-by-step explanation: took the test and got 100%

[tex]\huge\fbox{Hello~there!}[/tex]

Let's solve this inequality!

[tex]\rm{-x+20>-7+35[/tex]

What can we do to solve this inequality? Well, first of all, we can add -7 and 35:

[tex]\rm{-x+20>28[/tex]

Now, move 20 to the right, using the opposite operation:

[tex]\rm{-x>28-20[/tex]

Subtract:

[tex]\rm{-x>8[/tex]

Divide both sides by -1 to isolate x:

[tex]\rm{x<-8}[/tex] (Answer)

_____________

Additional comment

When we divide both sides of an inequality by a negative number, we flip the inequality sign.

____________

I hope you find it helpful.

Feel free to ask if you have any questions.

[tex]\bf{-MistySparkles^**^*[/tex]

Hey there mate :)

Please check the attached image for answer.

Answer:

1/2 = 0.5 / 1/2 of 100 is 50

Step-by-step explanation:

I am not sure what you are trying to say here but I will tell you what I know:

1/2 is equal to 0.5

So 50 x 1/2 = 25  
And 50 x 0.5 = 25

So 100 x 0.5 = 50

Answer:

1 ÷ 7

Step-by-step explanation:

A fraction represents a division with the numerator divided by the denominator, then

[tex]\frac{1}{7}[/tex] ≡ 1 ÷ 7

The first mistake Bailey made was in the reason he gave for the first statement. he should have written: reflexive property.

The reflexive property of congruence states that an angle will always be equal or congruent to itself.

For example, given an angle, ∠B, therefore:

∠B ≅ ∠B

In the diagram given, based on the reflexive property of congruence, ∠F ≅ ∠F.

Therefore, the first mistake Bailey made was in the reason he gave for the first statement. he should have written: reflexive property.

Learn more about reflexive property of congruence on:

https://brainly.com/question/1527538

Answer:

D. bailey did not match the corresponding bla bla bla. correct answer on khan, and screenshot proof below.

Step-by-step explanation:

Answer:

Slope = 2

Step-by-step explanation:

Slope = [tex]\frac{y_{2} -y_{1}}{x_{2}-x_{1}}[/tex]

Slope = [tex]\frac{-11 -(-1)}{4-9} = \frac{-10}{-5} = 2[/tex]

Answer:

1. 3750 millimetres

,,...

Answer:

1)A centimetre (international spelling) or centimeter (American spelling) (SI symbol cm) is a unit of length in the metric system, equal to one hundredth of a metre, centi being the SI prefix for a factor of 1100.

2)1000 ml

We know that 1 litre = 1000 ml, hence, the conversion factor that is used to convert liters to millilters is 1000.

3)My Solution:

Empty the 3-liter bowl, and then transfer the 2 liters from the 5-liter bowl into it. Now fill the 5-liter bowl again, then pour water carefully from the 5-liter bowl into the 3-liter bowl until it is full - exactly one more liter. The 5-liter bowl now has exactly 4 liters.

Answer:

20

Step-by-step explanation:

Let [tex]x[/tex] = the number of problems Anna completed

Using ratios

                                      5 : 8 = [tex]x[/tex] : 32

                                            [tex]\frac{5}{8} =\frac{x}{32}[/tex]

Cross multiply:           5 x 32 = [tex]x[/tex] x 8

                                       160 = 8[tex]x[/tex]

Divide both sides by 8:   20 = [tex]x[/tex]

Therefore, Anna completed 20 problems.

The equation and each day spend on snacks are 5(x + 4.5) = 28.75 and 1.25.

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Simplification is to make something easier to do or understand and to make something less complicated.

Given

Hannah spends $4.50 each day to buy lunch at her school.

After school each day, she buys the same snack.

Hannah spends $28.75 for lunch and snacks each week.

The equation and each day spend on snacks.

Let the school be open for 5 days a week.

and x be the snack.

5(x + 4.5) = 28.75 is the equation.

On simplifying, we get the value of x.

5(x + 4.5) = 28.75

   x + 4.5 = 5.75

            x = 1.25

Thus, the equation and each day spend on snacks are 5(x + 4.5) = 28.75 and 1.25.

More about the linear system link is given below.

https://brainly.com/question/20379472

Answer:

62.5%

Step-by-step explanation:

Step 1:

You divide 5 by 8.

     0.625

8⟌5

     - 0

       50

      - 48

           20

          - 16

              40

             - 40

                 0

The value of  x from the expression is 2

Given the expression

2x = 74/2 - 37

We are to calculate the value of  x from the expression

2x = 37 - 37

Since 37 - 37 = 0

2x = 0

Divide both sides by 2:

2x/2 = 0/2

x = 0

Hence the value of  x from the expression is 2

Learn more on expression here: https://brainly.com/question/22048677

To solve the problem we must know about Sine Rule.

The sine rule of trigonometry helps us to equate the side of the triangles to the angles of the triangles. It is given by the formula,

[tex]\dfrac{Sin\ A}{\alpha} =\dfrac{Sin\ A}{\beta} =\dfrac{Sin\ A}{\gamma}[/tex]

where

The value of w is 4.0 cm.

Given to us

[tex]\dfrac{Sin\ A}{\alpha} =\dfrac{Sin\ A}{\beta} =\dfrac{Sin\ A}{\gamma}[/tex]

Substitute the values,

[tex]\dfrac{Sin\ W}{w} = \dfrac{Sin\ U}{VW}[/tex]

[tex]\dfrac{Sin\ 39^o}{w}=\dfrac{Sin\ 31^o}{3.3}[/tex]

[tex]w=\dfrac{(Sin\ 39^o) \times 3.3}{Sin\ 31^o}[/tex]

w = 4.03224 cm ≈ 4.0 cm

Hence, the value of w is 4.0 cm.

Learn more about Sine Rule:

https://brainly.com/question/17289163

Answer:

-1

Step-by-step explanation:

You can do this two ways, the easiest way is to look at the graph.

What is g(4) means: When the x value equals 4, what does y equal?

Look for the coordinate with the x-value of 4 (it's asking for g(4). Now if you look at the y-value of the coordinate, it should tell you what g(4) is. So since the coordinate is (4,-1), g(4) is -1.

Another way to do it is to plug in 4 for x in the equation. So...

g(4) = -[f(4) - 3)]

g(4) = -[4 - 3]

g(4) = -[1]

g(4) = -1

Step-by-step explanation:

the lines segment joining two points on a curve.

Answer:

x = 59

Step-by-step explanation:

Since the angles of a quadrilateral add up to 360°, simply set the sum of all the angles to 360°:

x + x + (2x + 3) + (2x + 3) = 360

Combine like terms:

2x + 4x + 6 = 360

6x + 6 = 360

Get the x's on one side:

6x = 360 - 6

6x = 354

Solve by dividing by 6:

x = 59

Answer:

59

Step-by-step explanation:

x + x + (2x + 3)° + (2x + 3)° = 360°

6x + 6 = 360

6x = 354

x = 59

Answer:

11,105

Step-by-step explanation:

10,000

1,000

100

00

5

pls give brainliest.

Answer:

12.5 inches

Step-by-step explanation:

2 / 4 = 0.5

0.5 in = 10ft

0.5 x 25 = 12.5

Answer:

its 12.5

Step-by-step explanation:

stop doubting yourself, you had the option picked.