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3 years ago

Which features describe the graph of

Mathematics

2 answers:

Anna11 [10]3 years ago

8 0

Answer:

a vertex at (0,96)

the center at (0,0)

Step-by-step explanation:

edge

Arisa [49]3 years ago

4 0

Answer:

4. a vertex at (0, 96) is CORRECT

5. the center at (0, 0) is CORRECT

From the given equation,

a = 40

b = 96

(h,k) = (0,0), the center

The vertices are at (0,96) and at (0, -96).

The curves open upward and downward.

c² = a² + b² = 40² + 96² = 10816

c = 104

Therefore the foci are at (0, -104) and (0, 104).

Check the given answers:

1. a focus at (104, 0) is INCORRECT

2. a focus at (0, -96) is INCORRECT

3. a vertex at (-40, 0) is INCORRECT

4. a vertex at (0, 96) is CORRECT

5. the center at (0, 0) is CORRECT

Read more on Brainly.com - brainly.com/question/4411338#readmore

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Im almost done with my last few khan academy assignments but i think i frogot how to do this one

Strike441 [17]

Answer:

x--------------y

4--------------2

8--------------3

12-------------4

Step-by-step explanation:

y = 1/4x + 1

We substitute the values under x into the equation

Equation 1: y = 1/4(4) + 1

Equation 2: y = 1/4(8) + 1

Equation 3: y = 1/4 (12) + 1

Let's solve for equation 1:

Equation 1: y = 1/4(4) + 1

y = 1/4(4) + 1

Multiply number in parenthesis

y = 1/4 * 4/1 + 1

1/4 and 4/1 turn into 1

y = 1 + 1

Add 1 to 1

y = 2

Let's solve for equation 2:

y = 1/4(8) + 1

Multiply number in parenthesis

y = 1/4 * 8/1 + 1

1/4 and 8/1 turn into 2

y = 2 + 1

Add 2 to 1

y = 3

Let's solve for equation 3:

y = 1/4 (12) + 1

Multiply number in parenthesis

y = 1/4 * 12/1 + 1

1/4 and 12/1 turn into 3

y = 3 + 1

Add 3 to 1

y = 4

So the table of values would be:

x--------------y

4--------------2

8--------------3

12-------------4

look at the graph

3 0

2 years ago

PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.

grin007 [14]

Answer:

It should be 9 m :)

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Thirty five more boys than 2/3 the number of girls participate in intramural sports at the local high school. If the number of b

gogolik [260]

Answer:

120

Step-by-step explanation:

Let g = number of girls.

(2/3)g is 2/3 the number of girls

(2/3)g + 35 is 35 more than 2/3 the number of girls. This is the number of boys.

(2/3)g + 35 = 115

(2/3)g = 80

(3/2)(2/3)g = 80(3/2)

g = 120

4 0

3 years ago

20pts. Find the measure of ∠BEC. A) 10° B) 60° C) 80° D) 100°

Schach [20]

<h2>Explanation:</h2><h2></h2>

The figure to this problem is attached below. We know that angles ∠AEG and ∠GEC are supplementary, so:

∠AEG + ∠GEC = 180°

∠AEG = 8x°

∠GEC = (4x + 60)°

8x° + (4x + 60)° = 180°

(12x + 60)° = 180°

12x + 60 = 180

12x = 180 - 60

12x = 120

x = 10

∠AEG and ∠BEC are vertical angles, so they are congruent:

∠BEC = 8x°

∠BEC = 8(10)°

∠BEC = 80°

8 0

3 years ago

Give a third degree polynomial that has zeros of 13, 5i, and −5i, and has a value of −680 when x=3. Write the polynomial in stan

Vikki [24]

Answer:

$\dfrac{17x^3-221x^2+425x-5525}{9}\\$

Step-by-step explanation:

hello

we need to find something like, a being real

$a(x-13)(x-5i)(x+5i)$

with a so that

$a(3-13)(3-5i)(3+5i)=-680\\\\a(-10)(3^2-(5i)^2)= -10(9+25)a=-360a=-680\\ a = \dfrac{680}{360}=\dfrac{17*40}{9*40}=\dfrac{17}{9}$

so the third degree polynomial that we are looking for is

$\dfrac{17}{9}(x-13)(x-5i)(x+5i)\\=\dfrac{17}{9}(x-13)(x^2+25)\\\\=\dfrac{17}{9}(x^3+25x-13x^2-13*25)\\\\\\=\dfrac{17}{9}(x^3-13x^2+25x-325)\\\\\\\\=\dfrac{17}{9}x^3-\dfrac{17*13}{9}x^2+\dfrac{17*25}{9}x-\dfrac{17*325}{9}\\=\dfrac{17}{9}x^3-\dfrac{221}{9}x^2+\dfrac{425}{9}x-\dfrac{5525}{9}\\$

hope this helps

3 0

4 years ago