A parabolic satellite television antenna has a diameter of 16 feet and is 1 foot deep. How far is the focus from the vertex

Answers

Answer 1

Answer:

[tex]P=16ft[/tex]

Step-by-step explanation:

From the question we are told that:

Diameter [tex]d=16ft[/tex]

Depth [tex]dp=1ft[/tex]

Generally the equation for a Parabola is mathematically given by

 [tex]y=ax^2[/tex]

Since of the parabola has

Diameter [tex]d=16ft[/tex]

Depth [tex]dp=1ft[/tex]

Therefore it passes through

 [tex]x=(8,1)[/tex]

Therefore

 [tex]1=a(8)^2[/tex]

 [tex]a=\frac{1}{64}[/tex]

Since P(distance from focus to the vertex)

 [tex]a=\frac{1}{4p}[/tex]

Substituting

 [tex]\frac{1}{64}=\frac{1}{4p}[/tex]

 [tex]P=16ft[/tex]


Related Questions

find the value of x (in this picture)​

Answers

Answer:

x = 76°

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Geometry

All angles in a triangle add up to 180°

Step-by-step explanation:

Step 1: Define

Identify and set up

30° + 74° + x = 180°

Step 2: Solve for x

Add:                                                                                                                   104° + x = 180°[Subtraction Property of Equality] Subtract 104° on both sides:                   x = 76°

Answer:

x° = 76 °

Step-by-step explanation:

We know that sum of interior angles of triangle is 180 °.

74 ° + 30 ° + x° = 180 °

combine like terms

104 ° + x° = 180 °

subtract each side by 104°

x° + 104 ° - 104 ° = 180 ° - 104 °

x° = 76 °

I'll like a math genius to solve this.

8÷2 (2+2)​

Answers

Answer:

16

Step-by-step explanation:

8÷2(2+2)​

From PEMDAS, we do the equation in the parenthesis first.

8÷2(4)

Since this is division and multiplication we go left to right.

4(4)

16

Hey there!

[tex]\large\textsf{Do PEMDAS:}\\\\\\\large\textsf{Parentheses}\\\\\large\textsf{Exponents} \\\\\large\textsf{Multiplication}\\\\\large\textsf{Division}\\\\\large\textsf{Addition}\\\\\textsf{Subtraction}[/tex]

[tex]\large\textsf{8 }\mathsf{\div}\large\textsf{ 2 (2 + 2)}\\\\\large\textsf{2 + 2}\\\large\text{= \bf 4}}\\\\\large\textsf{8 }\mathsf{\div }\large\textsf{ 2(4)}\\\\\large\textsf{8 }\mathsf{\div}\large\textsf{ 2}\\\large\textsf{= \bf 4}\\\\\large\textsf{4(4)}\\\large\textsf{= \bf 16}\\\\\\\\\\\\\boxed{\boxed{\huge\textsf{Answer: \bf 16}}}\huge\checkmark[/tex]

[tex]\large\textsf{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

double the difference of 25 and 10 is

Answers

Answer:

30

Step-by-step explanation:

25-10 = 15

15 x 2 = 30

Double the difference of 25 and 10 is:

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

First we must get the difference between 25 and 10.

[tex]25 - 10 = \green{15}[/tex]

Next, we must double the answer.

[tex]15 \times 2 = \bold \blue{30} \\ \tt or \\ {15}^{2} = \purple {\sf{30}}[/tex]

Therefore, the answer is 30.

Stay safe!

PLEASE HELP WILL MARK YOU!!!

Answers

Answer:

hear is your required answer

Answer:

please see the image given above. hope this helps

help asap !!!!!!!!!!​

Answers

Answer:

Diagram 2= 5  

Diagram 3=10

Diagram 4= 15

Diagram 8 would be 35

Step-by-step explanation:

While at her family reunion, Anaya surveys the people there and makes a list of everyone's ages. She wants to make a data display that shows the youngest age, the mean age, and the oldest age, along with the way the other ages are distributed. What kind of display is her best choice?

A. Box-and-whisker plot
B. Histogram
C. Scatterplot
D. Ogive

Answers

Answer:a box and whisker plot

Step-by-step explanation:

Just took the quiz

I need help with this

Answers

Base: 3 units

Height: 5 units

Area: 15 square units

         ([tex]A=b*h=3*5=15[/tex])

hope this helps :)

which statement describes the vector plotted below

Answers

Answer : D.)

The vector begins at the point (0,0). This point is where it BEGINS because it is the end of the vector, it doesn’t point to anywhere.

The vector goes to the point (-5,-5) because this is where it is pointing to.

Liam bought pizza and wings for $27.58. How much change should Liam receive if he gave the clerk three $10 bills?
Use coins and bills to help solve.
A. $1.52
B. $2.42
C. $2.52
D. $12.42

Answers

Answer:

B. $2.42

Step-by-step explanation:

If Liam gave the clerk three $10 bills, that means he gave the clerk $30. This is because 3 times 10 equals 30.

Find how much change he will receive by subtracting $27.58 from the $30 that Liam gave to the clerk:

30 - 27.58

= 2.42

So, Liam will receive $2.42 in change.

The correct answer is B. $2.42

Answer:

 2.42

Step-by-step explanation:

3 ten dollar bills = 3*10 = 30 dollars

Subtract the cost of pizza and wings

30 - 27.58

Line up the decimals

 30.00

- 27.58

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

  2.42

A sheriff is interested in the average speed that people drive on Highway 50. Match the vocabulary word with its corresponding example.
A- The average speed that all drivers go on Highway 50
B- All people who drive on Highway 50
C- The average speed that the 250 randomly selected drivers drove on Highway 50
D- The speed that a driver drives on Highway 50
E- The 250 randomly selected drivers who were on Highway 50
F- The list of the 250 speeds that the drivers studied drove
a. Statistic
b. Population
c. Sample
d. Parameter
e. Data
f. Variable

Answers

Answer:

A: Parameter

B: Population

C: Statistic

D: Variable

E: Sample

F: Data

Step-by-step explanation:

A- The average speed that all drivers go on Highway 50: This is the parameter because it is the mean of the population.

B- All people who drive on Highway 50: This is the Population because it is from here that the sample was taken.

C- The average speed that the 250 randomly selected drivers drove on Highway 50: This is the statistic because it represents the mean of the sample.

D- The speed that a driver drives on Highway 50: This is the Variable because it varies with each driver.

E- The 250 randomly selected drivers who were on Highway 50: This is the sample because it is taken from a part of the population.

F- The list of the 250 speeds that the drivers studied drove: This is the data because it gives us information on the different speeds for this specific research.

4x-1divide by 2=x+7
what is x

Answers

X= 2.5
just move the terms collect the terms calculate it, divide both sides !!

need answer quick !!! please

Answers

Answer:

f(-10) = 186

Step-by-step explanation:

Sub in -10 to the x - values:

f(x) = 2[tex]x^{2}[/tex] + [tex]x[/tex] - 4

f(-10) = 2(-10)^2 - 10 - 4

f(-10) = 200 - 10 - 4

f(-10) = 186

MULTIPLE CHOICE
Select all that apply.

There are 3 red marbles, 2 green marbles, and 5 blue marbles in a bag. Which of the following are true?
The probability of randomly drawing a red marble and then a green marble is .
The probability of drawing a blue marble is the same as drawing either a red or a green marble.
The probability of randomly drawing either a red marble or a green marble is .
The probability of not drawing a blue marble is 50%.

Answers

Answer:

The probability of drawing a blue marble is the same as drawing either a red or a green marble. and the probability of not drawing a blue marble is 50%.

Step-by-step explanation:

The Math Team is hosting a raffle, and only 100 people will be allowed to enter. A ticket costs $2 and the prize is a $50 gift card. Only one
person will win.
What is the probability that you will win?
What is the probability that you will not win?
Find the expected value.

Answers

Answer:

given the information all your chances will be out of a 100% you don't have to convert these numbers because there is already only 100 people allowed to enter meaning you are 1 out of 100 people entered and have a 1/100 (1%) chance of winning and a 99/100 (99%) chance someone else winning

E gawain sa pagktuto bilang 1 basahin at unawain ang bawat suliranin lutasin ang suliranin gamit ang polyas 4 step process.

Answers

Answer:

CHerry emoji

Step-by-step explanation:

Randy's gross salary is $760 per week. his salary is taxed at 16% what is his net salary ​

Answers

Answer:

$638.4

Step-by-step explanation:

Randy's gross salary (salary without any deduction) = $760

taxed rate =16%

Amount tax paid =tax% of gross income

=16/100 * $760

=$16*760/100

=$12160/100

=$121.6

net salary = gross salary - tax paid

=$760 - $ 121.6

=$638.4

Randy's net salary is $638.40

Randy's gross salary = $760 per week.

Tax paid on his salary = 16%

Net salary is the difference between the salary earned and the amount paid as tax. This will be:

= Salary - Tax

= $760 - (16% × $760)

= $760 - (0.16 × $760)

= $760 - $121.60

= $638.40

Read related link on:

https://brainly.com/question/23421215

Think about the following relation: {(2,4),(-2,1),(2,2),(-3,1)}
What is the domain of the relation? {
}
What is the range of the relation? {
}

Answers

9514 1404 393

Answer:

  D: {-3, -2, 2}

  R: {1, 2, 4}

Step-by-step explanation:

The domain is the list of first-values of the ordered pairs:

  D: {-3, -2, 2}

The range is the list of second-values of the ordered pairs:

  R: {1, 2, 4}

What is the value 3/4 to the power of 3

Answers

Answer:

2/8

Step-by-step explanation:

Answer:

27/64

Step-by-step explanation:

3/4 to the second power is 9/16. 3/4 to the third power is 27/64

I need help with this problem for my homework pls help

Answers

Answer:

x = 6.93

y = 13.86

Step-by-step explanation:

We can solve x by;

Tan(60) = 12/x

Tan(60) * x = 12

x = 12 / Tan(60)

x = 6.93

We can solve y by;

A² + B² = C²

12² + 6.93² = y²

144 + 48.02 = y²

192.02 = y²

[tex]\sqrt{192.02}[/tex] = y²

13.86 = y

Hope this helps!

convert 15 to gray code​

Answers

Step-by-step explanation:

15 = 1000

its done .

may it helped u

If the exercise ball has been filled with Nitrogen which has a density of 0.2 grams per cubic inches. Find the mass in grams.
Options
11,581.2 grams

12,370.6 grams

13,891.5 grams

15,156.3 grams

Answers

Answer:

m = 11581.2 grams

Step-by-step explanation:

Given that,

The density of the ball, d = 0.2 g/in³

The radius of the ball, r = 24 inches

We need to find the mass of the ball in grams.

The density of an object is hiven by :

[tex]d=\dfrac{m}{V}\\\\d=\dfrac{m}{\dfrac{4}{3}\pi r^3}\\\\m=\dfrac{4}{3}\pi r^3\times d[/tex]

Put all the values,

[tex]m=\dfrac{4}{3}\pi \times 24^3\times 0.2\\\\m=11581.16\ g[/tex]

or

m = 11581.2 grams

Hence, the mass of the ball is 11581.2 grams.

The work of a student to find the dimensions of a rectangle of area 8 + 12x and width 4 is shown below:

Step 1: 8 + 12x
Step 2: 4(4) + 4(8x)
Step 3: 4(4 + 8x)
Step 4: Dimensions of the rectangle are 4 and 4 + 8x

In which step did the student first make an error and what is the correct step? (1 point)

Select one:
a. Step 2; 4(2) + 4x(2)
b. Step 2; 4(2) + 4(3x)
c. Step 3; 4 + (4 + 8x)
d. Step 3; 4 + (4 ⋅ 8x)

Answers

Answer:

step c

Step-by-step explanation:

The number of cans the soup kitchen has is represented by the equation, y = -63x + 825, where x represents the number of days and y represents the number of cans. How many cans will the soup kitchen have after 10 days?

Answers

Answer:

this equation means that if your multiple the amount of days by -63 and add 825 you'll get the amount of cans

can substitute 10 in as x so

-63(10)+825

-630+825

195

so the soup kitchen will have 195 cans after 10 days

Change fraction ( 11/4) from an improper fraction to a mixed number.

Answers

Answer:

Have a nice day :)

Step-by-step explanation:

To convert 11/4 into a mixed number, we need to divide 11 by 4 and get the values of quotient and remainder after performing division. When we divide 11/4, we get 2 as the quotient and 3 as the remainder. Now use the calculator to convert the following improper fractions to mixed fractions: 45/6

Which describes the shape of the distribution of total points in Mr. Price's science class? Please help ​

Answers

Answer:

The distribution is negatively (left) skewed

Step-by-step explanation:

Notice how most of the data is clustered on the right side of the distribution and there's more spread in the left side of the data, meaning the left tail is longer. This creates a negative skew in the data. Review the attached diagram to learn more.

Question: Simplify (3 1/7)^7

Answers

Answer:

3

Step-by-step explanation:

see image below:)

Answer:

[tex]\frac{22^7}{823543}[/tex] B. 3

Step-by-step explanation:

Refer To The Equation 2x-6y=12
Please Help :)

Answers

I'm sorry I can't answer that but I know something so you can answer that. search in browser 'quickmath' all your problems, equations and more can be solved

Step-by-step explanation:

I hope it helps trust me

How many quarts are in 150 cups?

Answers

Answer:

37.5 quarts

Step-by-step explanation:

4 cups = 1 quart

150/4=37.5

Answer:

there are 37.499999997608 quarts in 150 cups

2,10,18,26 find the 61st term

Answers

Answer:

482

Step-by-step explanation:

We can see that the numbers shown resemble an arithmetic sequence because they have a common difference. The formula for the nth term of an arithmetic sequence is:

[tex]a_{n} =a_{1} +(n-1)d[/tex]

Where [tex]a_{1}[/tex] is the first term, [tex]a_{n}[/tex] is the nth term, and [tex]d[/tex] is the common difference. To find the 61st term, all we need is the first term and the common difference. By looking at what given, we can say the first term is 2. Now, to find the common difference, we find the difference of a term from the term before it. In this case we can do [tex]10-2[/tex], which is [tex]8[/tex] , or the common difference. Since we have everything we need, it can be plugged into the equation:

[tex]a_{61} =2 + (61 - 1)*8\\a_{61} = 2 + 60*8\\a_{61} = 2 + 480\\a_{61} = 482[/tex]

So, the 61st term is 482.

An individual has $40,000 to invest: $28,000 will be put into a low-risk mutual fund averaging 6.9% interest compounded monthly, and the remainder will be invested in a high-yield bound fund averaging 9.8% interest compounded continuously.

Required:
a. Write an equation for the total amount in the two investments.
b. Write the rate-of-change equation for the combined amount.
c. How rapidly is the combined amount of the investments growing after 6 months? after 15 months?

Answers

Answer:

a) F(x) = 28,000( 1.00575 )^12x  + 12,000e^0.098x

b)  F'(x ) = 28,000 ( In 1.071224 ) ( 1.071224 )^x + 1176 e^0.098x  dollar per year

c) 3228.94 dollar/year,   3428.73 dollar/year

Step-by-step explanation:

Capital = $40,000

$28,000 = low-risk mutual fund

6.9% monthly compounded interest for the low risk mutual fund

$12,000  = high-risk yield bound fund

9.8% continuously compounded interest

A) Equation for total amount in two investments

F(x) = F1(x) + F2(x) ----- ( 1 )

where :

F1(x) ( future value for monthly compounded interest)

=  28,000( 1 + 0.069/12 )^12x = 28,000 ( 1.00575 )^12x

F2(x) ( future value for continuously compounded interest )

= ( 40,000 - 28,000 )e^0.098x = 12,000 e^0.098x

back to equation 1

F(x) = 28,000( 1.00575 )^12x  + 12,000e^0.098x

B Rate of change equation

f'(x) = d/dx (28,000( 1.00575 )^12x) + d/dx ( 12,000e^0.098x )

∴ f'(x) = 28,000 d/dx (1.00575^12)^x + 12,000 d/dx(b^x)

         = 28,000 ( In 1.071224 ) ( 1.071224 )^x + 12,000 ( In b ) ( b^x )

  f'(x ) = 28,000 ( In 1.071224 ) ( 1.071224 )^x + 1176 e^0.098x  dollar per year

C) Determine how rapidly the combined amount will grow after 6 months and after 15 months

i.e. x = 0.5 , x = 1.25 years

after 6 months

28,000 ( In 1.071224 ) ( 1.071224 )^(0.5) + 1176*e^((0.098(0.50))

=  1993.88  + 1235.06 = 3228.94 dollar/year

after 15 months

28,000 ( In 1.071224 ) ( 1.071224 )^(1.25) + 1176*e^((0.098(1.25 ))

=   2099.47  +  1329.26 = 3428.73 dollar/year

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