A piano teacher charges $25 per lesson. What is the dependent variable in this relationship?

Answer: look at the picture

Step-by-step explanation: Hope this help :)

Answer:

C = 28.26  cm

Step-by-step explanation:

The figure shows a circle of diameter 9 inches.

The person has taken radius r as 9 inches which is wrong.

The radius must be (9/2) = 4.5 inches, such that,

Circumference = 2πr

= 2×3.14×4.5

= 28.26  cm

Hence, this is the required solution.

Answer:

[tex]\cos x=\dfrac{8}{f}[/tex]

Step-by-step explanation:

Given that,

[tex]\tan x=\dfrac{e}{8}\\\\\sin x=\dfrac{e}{f}[/tex]

We need to find the value of cos x.

We know that,

[tex]\tan\theta=\dfrac{\sin\theta}{\cos\theta}[/tex]

Using the above relation,

[tex]\dfrac{e}{8}=\dfrac{\dfrac{e}{f}}{\cos x}\\\\\cos x=\dfrac{\dfrac{e}{f}}{\dfrac{e}{8}}\\\\=\dfrac{e}{f}\times \dfrac{8}{e}\\\\=\dfrac{8}{f}[/tex]

So, the value of cos x is equal to [tex]\dfrac{8}{f}[/tex].

Answer:

pentagon

Step-by-step explanation:

Answer:

First part representing requirements for the length x>=5 ft

Second part yes

Step-by-step explanation:

Well, the formula for finding the area of a rectangle is l x w. In the question, it states that the pen must be 4 ft wide and to fit his requirements of the pen being at the minimum 20 ft^2 we have this inequality 4x>=20 which we must solve and we get x>=5 which means that this represents all of the possible lengths for the play space. For the second part, we know that to fufill Judah's requirements for square ft., our length must be greater than or equal to 5. Last time I was doing math, I'm pretty sure 5 1/2>5 which thus can be accepted as a length value, still meeting the requirements of at least 20ft^2 space for the play space.

Answer:

See explanation

Step-by-step explanation:

cos(θ)= 18/30 = 3/5

sin(θ)= 24/30 = 4/5

tan(θ)= 24/18 = 4/3

cos(ϕ)= 24/30 = 4/5

sin(ϕ)= 18/30 = 3/5

tan(ϕ)= 18/24 = 3/4

The value of the trigonometric ratios have been determined.

In a Right angled triangle , the trigonometric ratios are used to determine the value of angles and sides.

The side length of the triangle as given in the figure is 18 , 24 , 30

The value of the trigonometric ratios are

cos θ = Base / Hypotenuse

sin θ =  Perpendicular / hypotenuse

tan θ =  Perpendicular / Base

cos(θ)= 18/30 = 3/5

sin(θ)= 24/30 = 4/5

tan(θ)= 24/18 = 4/3

cos(ϕ)= 24/30 = 4/5

sin(ϕ)= 18/30 = 3/5

tan(ϕ)= 18/24 = 3/4

Therefore the value of the trigonometric ratios have been determined.

To know more about Trigonometric Ratios

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Answer:

8.01 Is the answer your welcome

Answer:

SAS and not similar

Step-by-step explanation:

For the first one, the two triangles are similar (SAS) because the ratio of the two sides is the same (3:5) and the angle in between them is the same.

For the second one, the two triangles are not similar because if we look at the lengths of the sides which is the only information we have of them, we can see that their ratios are not the same.

Answer:

15x²6y² .................

The product of the expression is [tex](3 x 5) x^5y^2[/tex]

We have,

(3x³y) (5x²y)

Now,

Finding the product of the expression.

We add up the exponents of the same base.

[tex]x^3x^2 = x^{3 + 2} = x^5\\yy = y^{1 + 1} = y^2[/tex]

And,

(3x³y) (5x²y)

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

Thus,

The product of the expression is [tex](3 x 5) x^5y^2[/tex]

Learn more about expressions here:

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Answer:

so you takeway 40 by 28 you get 12+12=24%

Answer:

i got

50 %

30%

greater

Step-by-step explanation:

Answer:

at answer C, that's supposed to be x= -4 , 1 and that's the answer.

x^2 + 3x - 4 = 0

Quadratic formula:  

x = -b +- sqrt{b^2 - 4ac}/(2a)

Let a = 1

Let b = 3

Let c = -4

Just plug into the quadratic formula and do the math.

We are looking for x.

x = -3 +- sqrt{3^2 - 4(1)(-4)}/2(1)

x = -3 +- sqrt{9 + 16}/2

x = -3 +- sqrt{25}/2

x = (-3 +- 5)/2

Separate x into two parts.

Part 1

x = (-3 -5)/2

x = (-8)/2

x = -4

Part 2

x = (-3 + 5)/2

x = 2/2

x = 1

Answer: x = -4,  x = 1

Answer:

1759.52cm^3

Step-by-step explanation:

Given data

Cylinder E

h = 30 cm and

r = 4 cm

The expression for the volume is

V= πr^2h

V= 3.142*4^2*30

V= 3.142*16*30

V=1508.16 cm^3

Cylinder F

h=5 cm

r = 4 cm

The expression for the volume is

V= πr^2h

V= 3.142*4^2*5

V= 3.142*16*5

V=251.36 cm^3

Hence the total volume is

=251.36+1508.16

= 1759.52cm^3

Answer:

[tex]154 \: {cm}^{2} [/tex]

Step-by-step explanation:

Let the radius be = r cm

circumference = 2πr

[tex]44 = 2 \times \frac{22}{7 } \times r[/tex]

[tex]r = \frac{44 \times 7}{44} \times 7[/tex]

[tex]r = 7 \: cm[/tex]

Area of circle =

[tex]\pi {r}^{2} [/tex]

[tex] = \frac{22}{7} \times 7 \times 7[/tex]

[tex] = {154 \: cm}^{2} [/tex]

Hope it is helpful....

Answer:

Step-by-step explanation:

Answer:

The answer is D

Step-by-step explanation:

Filled in circle means equal to or greater/lesser than. Arrow points the same way as the inequality symbol.

Answer:

D. q ≥ -15

Step-by-step explanation:

since it's closed circle it's or equal to, if it's opened then it's not or and equal to, in this case it's closed.

It goes from -15 up so, it's bigger than or equal to -15.

q ≥ -15

Answer:

15

Step-by-step explanation:

its that because 808 makes the 14 into 15

Answer:

15.000

Step-by-step explanation:

because 808  is higher than 5 so it makes the 14 into 15

Answer:

When the lines are parallel, there are no solutions, and sometimes the two equations will graph as the same line, in which case we have an infinite number of solutions.

Step-by-step explanation:

Answer:

a6

Step-by-step explanation:

Answer:

14,96

Step-by-step explanation:

Answer:

r = 3.95 ft

Step-by-step explanation:

Volume of cone = [tex]\frac{1}{3} \pi r^{2} h[/tex] = 246 ft³

246 = [tex]\frac{1}{3} * \frac{22}{7} * r^2 * 15[/tex]

r² = [tex]\frac{246*3*7}{22*15*5}[/tex]

r = [tex]\sqrt{15.65}[/tex]

r = 3.95 ft

Answer:

19 is the answer .......explanation is in image.

Answer:

6.4

Step-by-step explanation:

multiply

Answer:

6.43

Step-by-step explanation:

You are given:

1 mile = 1.6 kilometers

but you want 4 miles so you multiply both of them by 4 so...

1*4 = 1.6*4

That gives you ------> 4 miles = 6.4 kilometers

Answer:

C

Step-by-step explanation:

Both triangles have three angles of the same value.

Remember that the angles in all triangles add up to 180°.

Let's use that to find out the unknown angles.

For the first triangle:

180 - 82 - 43 = 55°

55° is also in the second triangle.

Let's check with the second triangle:

180 - 82 - 55 = 43°

43° is also in the first triangle.

Therefore, both triangles are similar as the angles in both triangles are the same - 82°, 43° and 55°.

Hence, C.

Answer:

6

Step-by-step explanation:

Answer:

7.31 and 0.685

Step-by-step explanation:

x^2 -8x +5 = 0

use the quadratic formula

- (-8) + √(-8^2 -4(1)(5) / 2(1(

(8 + √(64 -20))/2

(8+√44)/2

8+6.63 / 2

14.63/2= 7.31

+7.31

(8- √44)/2 = 0.685

Answer:

624inches squared.

Step-by-step explanation:

13×8×6=624

Answer:

12/30 = 40%

Step-by-step explanation:

12 divided by 30 = 40%

Give me a brainleist please

Answer:

you would have 60% of credits to complete before graduation.

Step-by-step explanation:

you already have 12 credits so subtract 12 from 30

      30

   -  12

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

      18

that will bring you to the number 18

18 of 30 is a 60 percentage

~hope this helped :3~