CAN SOMEONE HELP PLEASE?

Answer:

9 in approx

Step-by-step explanation:

Step one:

given data

the shape of the satellite dish takes the form of a paraboloid.

the diameter of the dish is 38in wide

and 10 inches deep.

step two:

The expression for the paraboloid is

[tex]4ay=x^2[/tex]

where y is the vertical axis of the  paraboloid

a is vertex to focus.

and x is the radius of the dish

x= 38/2= 19in

substituting we have

[tex]4a10 =19^2\\\\40a=361 \\\\[/tex]

divide both sides by 40

[tex]a=361/40\\\\a=9.025[/tex]

vertex to focus= 9 in approx

Answer: The slope is 2

Step-by-step explanation: For questions like these, find 2 points on the graph that are on whole numbers, for example (10,60) and (20,80). Then use the formula y2-y1/x2-x1 to solve for the slope, which would be the same thing as rate of change. 80-60/20-10 which equals 2. The slope would be 2.

Answer:

See below

Step-by-step explanation:

Let the number of Payday be p and Baby Ruth be b

Then sub of the candy bars:

1. Required equations:

2. Solving by substitution:

p = 220 - b, consider it in the second equation

60 Baby Ruth candy bars sold

Answer:

6 is the correct answer.

Answer:

i is about 23.5 so you could say c)

Step-by-step explanation:

The line segment is RST.

Since RS is 1/3 of the total length, ST is 2/3.

Therefore, 2(RS) is = ST, and RS + ST = RT.

2(3x -20) = 4x - 11

6x - 40 = 4x - 11

2x = 29

x = 14.5

3(14.5) - 20 = 23.5

4x - 11 = 47

2(23.5) = 47

The length of RS is 23.5.

The length of ST is 47.

The total length of RT is 70.5.

Cleomenius.

Answer:

Its 6.3 units

Step-by-step explanation:

i took the test

Answer:

Step-by-step explanation:0.15

The number of miles in a day at which the rental costs for company a and company b are the same are 350 miles.

Let the number of miles travelled be 'x';

According to question; for rental costs to be same;

120 + 0.40x = 50 + 0.90x;

0.50x = 70;

x = 350;

Of the one hundred biggest cities national, San Francisco's hire discounts are the steepest, according to records from domestic-seek internet site rental listing. The metropolis's median rents are down roughly 10% from March 2020, stated senior economist Christopher

Rents within the San Francisco metro area, which incorporates the East Bay and the Peninsula, have been up just over 12% in April compared to 365 days ago, and were at the upward thrust for the ultimate four months directly, consistent with the ApartmentList file.

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Answer:25

Step-by-step explanation:

Answer:

25!

Step-by-step explanation:

Whenever multiplying by a percentage, you always take the whole number and multiply it by the decimal amount of the number. In this case, 25% is equivalent to 1/4 of an amount, so there would be 25 students enrolled in health. I hope this helped! <3

The composite functions are listed below:

In this problem we find five cases of composite functions, each of which has to be evaluated. A composition between the two functions f and g is defined below:

f ° g(x) = f ( g(x) )

Now we proceed to evaluate each of the five cases by using algebra properties and the definition of the composition of functions:

Case 1

g ° f(3) = g( f(3) )

g ° f(3) = 4 · (2 · 3 + 2) - 3

g ° f(3) = 4 · 8 - 3

g ° f(3) = 29

Case 2

g ° f(x + 1) = g( f(x + 1) )

g ° f(x + 1) = 2 · [(x + 1)² - 2 · (x + 1)] + 1

g ° f(x + 1) = 2 · (x² + 2 · x + 1 - 2 · x - 2) + 1

g ° f(x + 1) = 2 · (x² - 1) + 1

g ° f(x + 1) = 2 · x² - 1

Case 3

h ° g (- 3 · x) = h( g (- 3 · x) )

h ° g (- 3 · x) = 3 · [4 · (- 3 · x) - 3]

h ° g (- 3 · x) = 3 · (- 12 · x - 12)

h ° g (- 3 · x) = - 36 · x - 36

Case 4

f ° g (- 2 - t) = f( g (- 2 - t))

f ° g (- 2 - t) = [4 · (- 2 - t) - 2]² + 1 + 2 · [4 · (- 2 - t) - 2]

f ° g (- 2 - t) = (- 8 - 4 · t - 2)² + 1 + 2 · (- 8 - 4 · t - 2)

f ° g (- 2 - t) = (- 10 - 4 · t)² + 1 + 2 · (- 10 - 4 · t)

f ° g (- 2 - t) = 100 + 80 · t + 16 · t² + 1 - 20 - 8 · t

f ° g (- 2 - t) = 73 + 72 · t + 16 · t²

Case 5

f ° g (x²) = f( g(x) )

f ° g (x²) = 3 · (x² + 4) + 5

f ° g (x²) = 3 · x² + 12 + 5

f ° g (x²) = 3 · x² + 17

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Answer:

A

Step-by-step explanation:

if you take 23 and put it in for p 18+23=41

Answer:

f(-3) appears to have a value of 4.

Answer:

845

Step-by-step explanation:

ehjfuilgi

Answer:

6 + 8 + 10 = 24

Step-by-step explanation:

Take 6 and 15 and compare those two, you will have to multiply 6 by 2.5 to get to 15 and that's the dilation, then dive 20 and 25 by 2.5, you'll get 8 and 10.

6 + 8 + 10 =24

Answer:

The answer is below

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are dilation, reflection, translation and rotation.

Given the vertices A (-4,3) B(-1,5) and C (-1,2).

If the vertices is reflected across the y = -1 line, the new location would be at:

A' (-4, -5). B'(-1, -7) and C'(-1, -4)

If it is then translated 8 units to the right i.e. (x, y) ⇒ (x + 8, y), the new location would be at:

A"(4, 5), B"(7, -7) and C"(7, -4)

Answer:

B. y=3x-2

Step-by-step explanation:

y=mx+b

m=slope

b=y-intercept

m=3

b=-2

y=3x-2

Hope this helps!

Please mark as brainliest if correct!

Answer:

49392=2×2×2×2×3×3×7×7×7

=2

4

×3

2

×7

3

∴49392=2

4

×3

2

×7

3

Given, 49392=a

4

×b

2

×c

3

comparing both, we get,

a=2,b=3,c=7

Answer:

9:5= Cats to dogs

5:9 = Dogs to cats

9:14 = Cats to Total number of animals

Step-by-step explanation:

:p

Answer:

First one is A. [tex]2x^{3} + 1[/tex]

Second one is D. [tex]8x^{3} + 24x^{2} +24x + 8[/tex]

Step-by-step explanation:

Edge 2020

Answer:

d on edge

Step-by-step explanation:

Answer:

x = -19/6

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

2x + 10 = -4x - 9

Step 2: Solve for x

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Here we see that 11/3 does indeed equal 11/3.

∴ x = -19/6 is the solution to the equation.

Answer:

4 + √15

Step-by-step explanation:

Conjugate means flip the sign. For example, 1 + 1 ⇒ 1 - 1.

Answer:

let me try

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The third one down. There are two ways you know this.

1. If you had two boards that where 6 cm and 20 cm and tried to make a triangle with the third side = 27, the two little boards would lie flat on the 27 cm board.

2. The other three answers all make the smaller two sides larger than the third larger side.

C

Answer: 86

Step-by-step explanation:

Since we want to know the number of walking plans that she will do on the 15th day, we have to use 14 days in our calculations as the first day isn't included.

Therefore, the equation to solve this will be:

= 2 + 6d

where,

d = number of days = 14 days

= 2 + 6d

= 2 + 6(14)

= 2 + 84

= 86

Answer:

22 for num 5

Step-by-step explanation:

Answer:

To start off, we know the problem involves something with volume as it is 3D and has a cubic in it.

We know r = 5, h = 30, and v = 1500

The volume for a cylinder in 3d is : V=[tex]\pi[/tex][tex]r^{2}[/tex]h

We're solving for the height when the cylinder has a volume of 1500, therefor, we will solve for height.

Using our volume equation we plug in all values except h because we're solving for it.

1500=[tex]\pi r^{2} h[/tex]

1500=[tex]\pi 5^{2} h[/tex]

1500=25[tex]\pi[/tex](h)

1500/25[tex]\pi[/tex] = h

60/[tex]\pi[/tex] = h

60/[tex]\pi[/tex] = 19.0985

H is 19ft. (C)