PLEASE HELPPP 10 points and will mark brainly!!!!!!

y=cos(x)+2

What is the amplitude of the function?

What is the period of the function?

Answer: She needs to save her allowance for another 4 weeks.

Step-by-step explanation:

She starts with $30, and for each week that she saves her allowance, she gets another $10. If she saves for "w" weeks, she has:

$30 + w*$10

And she wants to have $70

$30 + w*$10 = $70

We can solve this:

$30 + w*$10 = $70

w*$10 = $70 - $30 = $40

w = $40/$10 = 4

Answer:

tarro corto

Step-by-step explanation:

Aquí tenemos que comprar el frasco que tiene el menor costo por volumen.

[tex]h_1[/tex] = Altura del frasco corto

[tex]h_2[/tex] = La altura del frasco alto es el doble que el del frasco corto. = [tex]2h_1[/tex]

[tex]d_1[/tex] = Diámetro del frasco corto

[tex]d_2[/tex] = El diámetro del frasco alto es la mitad del frasco corto = [tex]\dfrac{1}{2}d_1[/tex]

El volumen de un cilindro es [tex]\pi \dfrac{d^2}{4}h[/tex]

La razón de los volúmenes de los frascos es

[tex]\dfrac{V_1}{V_2}=\dfrac{\pi\dfrac{d_1^2}{4}h_1}{\pi\dfrac{d_2^2}{4}h_2}\\\Rightarrow \dfrac{V_1}{V_2}=\dfrac{d_1^2h_1}{d_2^2h_2}\\\Rightarrow \dfrac{V_1}{V_2}=\dfrac{d_1^2h_1}{(\dfrac{1}{2}d_1)^22h_1}\\\Rightarrow \dfrac{V_1}{V_2}=\dfrac{d_1^2h_1}{\dfrac{1}{4}d_1^22h_1}\\\Rightarrow \dfrac{V_1}{V_2}=\dfrac{1}{\dfrac{1}{2}}\\\Rightarrow \dfrac{V_1}{V_2}=2\\\Rightarrow V_1=2V_2[/tex]

El costo del frasco corto por unidad de volumen es

[tex]\dfrac{8000}{V_1}=\dfrac{8000}{2V_2}=\dfrac{4000}{V_2}[/tex]

El costo del frasco alto por unidad de volumen es

[tex]\dfrac{4500}{V_2}=\dfrac{4500}{V_2}[/tex]

[tex]\dfrac{4000}{V_2}<\dfrac{4500}{V_2}[/tex]

Entonces, el costo del frasco corto por unidad de volumen es menor que el costo por unidad de volumen del frasco alto.

Por lo tanto, deberíamos tomar el frasco corto.

5/9 and 11/21

LCM of the denominators is 63

changing their denominators to all have a common denominator of 63:

5(7)/63 = 35/63

11(3)/63 = 33/63

from the above;

5/9 > 11/21.

Answer:

In algebra, an equation is a mathematical expression that contains an equals sign. ... An inequality is a mathematical expression that contains inequality signs. For example, y≤ 12x is an inequality. Inequalities are used to tell us that an expression is either larger or smaller than another expression.

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Let the required number be x

[tex] \frac{9}{4} \times x = 27 \\ \\ x = 27 \times \frac{4}{9} \\ \\ x = 3 \times 4 \\ \\ x = 12[/tex]

Answer:

I think 12 is the answer...

Step-by-step explanation:

27/1 divided by 4/9 (Multiply by the recipricol).

27/1 multiplied by 9/4 (Cross multiply/Use the butterfly method).

= 12/1 or 12

I hope this helps.

Answer: 37.07 km

Step-by-step explanation: you would divide 512 by 13.81 to get the answer.

Answer:

Step-by-step explanation:

Answer:

A

Step-by-step explanation: He slashed across the South destroying farms and land in a scorched Earth tactic, which was really damaging to the South because the land they had was all they had.

It's not B because they didn't need rest, he wasn't sailing North so it's not C, and he didn't have anything to prove himself as a skilled general, he already was a skilled general.

Answer:

2x+(-4)-8x(3)-5

Answer:

-22a-9

Step-by-step explanation:

2a+(-4)-3(8a+5)

2a+4-24a-15

2a-24a+4-15

-22a-9

Answer:

-5x - 12

Step-by-step explanation:

-5(x + 4) + 8

-5x - 20 + 8

-5x - 12

Answer:

B

Step-by-step explanation:

it says each month and i think i saw 35 as the first month so n would go behind it so yea

Answer:

y=x y=-x

Step-by-step explanation:

Answer:

y= 12x4

Step-by-step explanation:

i have a degree for this stuff

Answer:

3 oil changes

Step-by-step explanation:

1. Find an equation that represents this word problem: 3000x + 5000 = y

Where y = the # of miles total. y = 250 miles/week * 52 weeks/year = 13000 miles.

2. Solve for x: 3000x + 5000 = 13000   3000x=8000

3. x = 8/3 integer round down x = 2 oil changes, but plus the one after 5000 miles is a total of 3 oil changes that year

Answer:

22

Step-by-step explanation:

,

Answer:

that is an obtuse angle and mixed with an aacute, you answer should be 45 or 50 degrees please correct me if im wrong.

Step-by-step explanation:

Answer:

81

Step-by-step explanation:

25​, 36​, 49​, 64​, ...

36 - 25 = 11

49 - 36 = 13 = 11 + 2

64 - 49 = 15 = 13 + 2

64 + 15 + 2 = 81

Answer:

6:2

Step-by-step explanation:

simple math ... then u simplify and the answer is 3:1

Answer:

Y > 30

Step-by-step explanation:

Answer:

384

Step-by-step explanation:

You multiply 16 by 24 and that equals 384. Good luck and have a great day!

Given:

Karen earns $54.60 for working 6 hours.

Amount she earns varies directly with the  number of hours she works.

She need to work to earn an  additional $260.

To find:

Number of hours she need to work to earn an  additional $260.

Solution:

Let the amount of earnings be A and number of hours be t.

According to question,

[tex]A\propto t[/tex]

[tex]A=kt[/tex]     ...(i)

where, k is constant of proportionality.

Karen earns $54.60 for working 6 hours.

[tex]54.60=k(6)[/tex]

Divide both sides by 6.

[tex]\dfrac{54.60}{6}=k[/tex]

[tex]9.1=k[/tex]

Put k=9.1 in (i).

[tex]A=9.1t[/tex]

Substitute A=260 in the above equation.

[tex]260=9.1t[/tex]

Divide both sides by 9.1.

[tex]\dfrac{260}{9.1}=t[/tex]

[tex]28.5714=t[/tex]

[tex]t\approx 29[/tex]

Therefore, she need to work extra about 29 hours to earn an  additional $260.

Answer:

D. A fee paid to a broker for making a trade

Step-by-step explanation:

Commission in stocks is simply a brokerage fee that is charged when one wants to buy or sell stocks.

It is also known as trading fee and could be charged when buying and selling other investments, like exchange traded funds.

Thus, correct answer is option D.

Answer:

d

Step-by-step explanation:

Answer:

The measure of the vertex angle is 94 degrees ⇒ A

Step-by-step explanation:

∵ In an isosceles triangle, the measure of the base angle = (2x + 5)

∵ The base angles of the isosceles triangles are equal in measures

∴ The measures of the base angles are (2x + 5), (2x + 5)

∵ The measure of the vertex angle = (5x - 1)

∵ The sum of the measure of the three angles = 180°

∴ (2x + 5) + (2x + 5) + (5x - 1) = 180

→ Add the like terms in the left side

∵ (2x + 2x + 5x) + (5 + 5 + -1) = 180

∴ 9x + 9 = 180

→ Subtract 9 from both sides

∴ 9x + 9 - 9 = 180 - 9

∴ 9x = 171

→ Divide both sides by 9 to find x

∴ x = 19

→ Substitute the value of x in the measure of the vertex angle to find it

∵ The measure of the vertex angle = 5x - 1

∴ The measure of the vertex angle = 5(19) - 1

∴ The measure of the vertex angle = 95 - 1

∴ The measure of the vertex angle = 94°

∴ The measure of the vertex angle is 94 degrees

Answer:

A, C ,E

Step-by-step explanation:

Answer:

Jerrod drove at the fastest rate of speed which is 70 km/ph.

Step-by-step explanation:

I hope this is what u wanted.

Answer:

the answer is 2! :)

Step-by-step explanation:

a) The solution to the transformation of the function is h ( x ) = 4x - 5

b) The reflection of function g ( x ) over y axis is f ( x ) = -x³ + x² + 3x - 1

The transformation of a function may involve any change.

Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretched (multiplying outputs or inputs), etc.

If the original function is y = f(x), assuming the horizontal axis is the input axis and the vertical is for outputs, then:

Horizontal shift (also called phase shift):

Left shift by c units: y=f(x+c) (same output, but c units earlier)

Right shift by c units: y=f(x-c)(same output, but c units late)

Vertical shift:

Up by d units: y = f(x) + d

Down by d units: y = f(x) - d

Stretching:

Vertical stretch by a factor k: y = k × f(x)

Horizontal stretch by a factor k: y = f(x/k)

Given data ,

Let the function be represented as g ( x )

Now , the value of g ( x ) = 4x - 3

Vertical shift:

Up by d units: y = f(x) + d

Down by d units: y = f(x) - d

On transformation of the function by a vertical shift of 2 units , we get

h ( x ) = g ( x ) - 2

Substituting the values in the equation , we get

h ( x ) = 4x - 3 - 2

h ( x ) = 4x - 5

So , the transformed function is h ( x ) = 4x - 5

b)

On reflecting the function g ( x ) over y axis , f ( x ) = g ( -x )

Substituting the value of x as -x in the function , we get

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

So , f ( x ) = -x³ + x² + 3x - 1

Hence , the transformed function is h ( x ) = 4x - 5

To learn more about transformation of function click :

https://brainly.com/question/26896273

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