Which two fixed points define the shape of an ellipse?

A. Center and focus
B. Focus and directrix
C. Two foci
D. Vertex and focus

Answers

Answer 1
For every ellipse E there are two distinguished points, called the foci, and a fixed positive constant d greater than the distance between the foci, so that from any point of the ellipse, the sum of the distances to the two foci equals d .

Related Questions

Using the graph of f(x) and g(x), where g(x) = f(k.x), determine the value of k.
-6
g(x)
f(x)
-5
3
5
-2
1
11
NI
2

Answers

Answer:

i also confused and cant answer

1. Which is greater than 4?

(a) 5,

(b) -5,

(c) -1/2,

(d) -25.

Answers

Answer:

a

Step-by-step explanation:

Bailey is multiplying 32 by 7. She says the answer will be greater than 32.
Do you agree with her?

Answers

Yes I agree

32×7 = 224 which is greater than 32.

The area of a rectangle is 75 square feet, and the length is 25 feet. What is the perimeter?

Answers

Answer:

56 feet

Step-by-step explanation:

75/25=3 feet

this is another side.

(3+25)x2+56 feets

Answer:

75ft.

Step-by-step explanation:

What you do is subtract two 25s from the area (because there are two sides for length) which gives you 25. The width would be half of that which is 12.5. Then add two widths (12.5+12.5=25), and add that to two lengths (25+25=50). The answer is 75ft as well. Please tell me if I'm wrong.

The equation 4(x – 3)2 – 5 = 139 has two solutions: one positive and one negative. What is the
negative solution?
7.

Answers

Answer:

Step-by-step explanation:

4(x-3)2-5 = 139

(4x-12)-5=139

-20x + 60 = 139

-20x +60 - (60) = 139- 60

-20x = 79 divide both sides by -20

x = -3.95

pls tell the answers whoever gives the correct answer will be marked as brainliest ​

Answers

Answer:

(D)

Step-by-step explanation:

Area (shaded) = Area (large rectangle) - Area (small rectangle)

= (4x + 3)(4x - 3) - (8x + 9)(2x - 1)

= 16x² - 9 - [16x² + 18x - 8x - 9]

= -10x

The correct option is (D)

i will give brainliest

Answers

Answer:

c=30

Step-by-step explanation:

Inverse: 22 + 8 = 30

c = 30

Answer:

c = 30

Step-by-step explanation:

Step 1: Add 8 to both sides.

[tex]c-8+8=22+8[/tex] [tex]c=30[/tex]

Step 2: Check if solution is correct.

[tex]30-8=22[/tex] [tex]22=22[/tex]

Therefore, the answer is c = 30.

Current intelligence tests, including the Stanford-Binet, assign an average performance score as 100. In a normally distributed set of scores, with a standard deviation of 15, which percentage of scores will fall between 85 and 115

Answers

Answer:

68.27%

Step-by-step explanation:

By the Empirical Rule, the amount of data that is 1σ below and above the mean μ accounts for 68.27% of the data.

Stanley recieved 110 pieces of candy for Halloween. He gave 20% of his candy to his little brother. So far, he has eaten 25% of the remaining candy. How many pieces of candy are left?

Answers

10% of 110 = 11
20%= 11 x 2 = 22
22
10% of 22 = 2.2
2.2 x 2 = 20% = 4.4
2.2/2= 5% =1.1
4.4+ 1.1
=5.5 pieces of candy left

PLEASE SOLVE! IT'S REALLY EASY, BUT MY BRAIN IS DEAD AT THE MOMENT.

Answers

Answer:

x = 30 over 11

Step-by-step explanation:

6(9x-5)-4(3+2x)-3(8x-20) = 24

54x-30-12-8x-24x+6 = 24

22x = 24+36

22x = 60

then divide both sides by 22

x = 30 over 11

A guest on a talk show tends to receive many phone calls right after she is on the show, and then the calls become less frequent. This can be represented by the equation y = 30(0.92)d, where y is the number of phone calls after d days. How many phone calls should she expect after a week?

Answers

Answer:

17

Step-by-step explanation:

After a week he can expect 17 calls.

Given that,
A guest on a talk show tends to receive many phone calls right after she is on the show, and then the calls become less frequent.
This can be represented by the equation y = 30(0.92)d, where y is the number of phone calls after d days.
How many phone calls should she expect after a week is to be determined.

What is an exponential function?

The function which is in format f(x) =aˣ where a is constant and x is variable,  the domain of this exponential function lies   (-∞, ∞).

Here,

in 1 week = 7 Days
Now,
D = x
y = 30(0.92)ˣ
now put x = 7
y = 30(0.92)⁷
y = 30 * 0.55
y ≈ 17

Thus, After a week he can expect 17 calls.

Learn more about exponential function here:

brainly.com/question/15352175

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The perimeter of a triangle is 50 feet. One side of the triangle is 4 times the second side. The third side is 14 feet longer than the second side. Find the length of each side.

Answers

Answer:

Step-by-step explanation:

WILL GIVE A LOT OF POINTS

Determine the intercepts of the line.
73 – 5 = 4y – 6

Answers

Dang. Ask ur classmates

Factor the following polynomial completely.
0.3x^2 - 3.6x + 8.1

A) 0.3(x - 3)(x - 9)
B) 0.3(x - 3)(x + 9)
C) -0.3(x^2 + 12x + 27)
D) 0.3(x^2 - 12x + 27)

Answers

Answer:

Step-by-step explanation:

hello :

divid 3.6 and 8.1 by 0.3 you have : 3.6/0.3 =12 and 8.1/0.3 =27

0.3x² - 3.6x + 8.1 = 0.3 (x²-12x+27) = 0.3(x - 3)(x - 9) ....answer A

A HighSchool’s football Stadium holds a total of 7,000 fans. A survey shows that of the total number of fans, 68% root for the home team. How many fans attending a football game are rooting for the home team?

Answers

All of them except the 32•/•

What is the constant of proportional in the equation Y equals 5/9 X

Answers

9514 1404 393

Answer:

  5/9

Step-by-step explanation:

Compare the given equation ...

  y = (5/9)x

to the equation for proportionality ...

  y = rx

where r is the constant of proportionality.

Matching the two patterns, you should be able to see that r = 5/9.

The constant of proportionality is 5/9.

I need help ASAP with these questions

Answers

Answer:

The answer is 6

Step-by-step explanation:

2.3... where the 3s go on forever is the same as 2 + 1/3 or 2 & 1/3  

The whole number portions add to 3+2 = 5, and we add on the carry of 1 to get 5+1 = 6

3 & 2/3 = 3 + 2/3 = 3 + 0.667 = 3.667 approximately

adding this onto 2.333 leads to

3.667 + 2.333 = 6

Technically the 6's go on forever in the decimal form of 3 & 2/3, but rounding wont have an effect on the answer when we add

solve this inequality m−11≥−2

Answers

Answer:

m ≥ 9

Step-by-step explanation:

Given

m - 11 ≥ - 2 ( add 11 to both sides )

m ≥ 9

Answer:

M≥9

Step-by-step explanation:

I need the equation for 36÷3

Answers

Answer:

12

Step-by-step explanation:

12 x 3= 36 so 36 ÷ 3= 12

Use the model to help you find the product.

1
2
3
×
1
3


A model represents 1 and two-thirds.
Each big square is cut into 3 parts to represent multiplying by one-third.
The number of small shaded squares in the circled parts of each big square is the numerator of the product.
The total number of small squares in a single big square represents the denominator of the product.
The product is .

Answers

Answer: 5/9 is your answer.

Answer:

it is 5/9, yw

Step-by-step explanation:

Solve for x 5x+10=7x+18

Answers

Answer:

I think it is x=-4

Step-by-step explanation:

Step 1: Subtract 7x from both sides.

5x+10−7x=7x+18−7x

−2x+10=18

Step 2: Subtract 10 from both sides.

−2x+10−10=18−10

−2x=8

Step 3: Divide both sides by -2.

-2x/-2=8/-2

Answer:

x=−1  or x≓1.640367031

Step-by-step explanation:

what is the approximate height of the rice container if the radius is 2.5 in. and the volume is 235.5 in cubed​

Answers

Answer:

12 in

Step-by-step explanation:

r = 2.5 in

V = 235.5 in³

Find h

Use V = πr²h

so 235.5 = 3.14 * 2.5² * h

235.5 =  19.625 h

h = 235.5/19.625 = 12 in

Assessment Practice
24. There were 240 shoppers at an electronics store on opening day.
The specials that day allowed 25% of shoppers to receive a free set
of earbuds and 20% of shoppers to receive $10 off their first purchase.
PART A
PART B
Use an equivalent fraction to determine how Use an equivalent fraction to determine how
many shoppers received a free set of earbuds. many shoppers received $10 off their first purchase
Show your work.
Show your work
372
6-4 Estimate to Find Percent

Answers

Answer:

Free set of earbuds = 60/240

10 dollars off first purchase = 48/240

Hope this helps

Does this graph show a function explain how you know​

Answers

Answer:

No

Step-by-step explanation:

This is not a function because more than one point shares more than one point.

Given that a=4 and b=5. evaluate : a²+3b​

Answers

Answer:

31

Step-by-step explanation:

4 squared is 16, and 5 times 3 is fifteen if you add them you get 31

An isosceles triangle has vertices at (-5, 4), (2, 4) and (-1.5, -3.5). Each of its two congruent sides are 8.3 units long. Calculate both the area and perimeter of the triangle. Explain or show you got your answers.

Answers

Hmmmmmmmmmmmmmm 2.849 to the 89 max

Answer:

unit long

Step-by-step explanation:

HELPPPPPP PLEASE !!!The expected value of a random variable x is 62. The variable is
transformed by multiplying X by 3 and then adding 6 to it. Find the
expected value (mean) of the transformed variable.

Answers

the answer should be 192, because 62 times 3 plus six is 192!!

Evaluate the equation.

12.8 + c = 30.12
A. c =17.28
B. c =17.32
C. c =42.92
D. c =43.02

Answers

Answer:  B. c = 17.32

Step-by-step explanation:

12.8 + c = 30.12

          c = 17.32   [Subtract 12.8 from both sides.]

Therefore, answer is B.

The function f is defined by f(x) = - |x|
Write down the expression for g (x)

Answers

[tex]\\ \tt\Rrightarrow f(x)=-|x|[/tex]

OBSERVE THE GRAPH

g(x) is shifted 4units right and 3 units up

So the new function is

[tex]\\ \tt\Rrightarrow g(x)=-|x-4|[/tex]

[tex]\\ \tt\Rrightarrow g(x)=-|x-4|+3[/tex]

Graph attached

The function f is defined by f(x) = - |x|, The expression for g (x) will be g (x) =  - |x|+3.

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

It is given that the function is,

f(x) = - |x|,

Geometric transformation is the change in coordinates and the shape of the geometrical body. It is also referred to as a two-dimensional transformation. In the geometric transformation, changes in the geometry can be possible by rotation, translation, reflection, and glide translation.

It is obtained from the graph that the point for the function g (x) is translated by the 3 units right.

Thus, the function f is defined by f(x) = - |x|, The expression for g (x) will be g (x) =  - |x|+3.

Learn more about the function here:

brainly.com/question/5245372

#SPJ2

find the percent change from 62 to 7​

Answers

Answer:

11.29

Step-by-step explanation:

I don't actually have a step-by-step explanation but I have to use up characters to

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