1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
romanna [79]
3 years ago
8

Giving 90 points please

Mathematics
2 answers:
tatuchka [14]3 years ago
4 0

Answer:

It's matched left by right side. Steps are not in order!

Step-by-step explanation:

1. Square both sides and simplify

2. Find the distance between the focus and the point on the parabola

3. Choose a point on the parabola

4. Write the equation of the parabola

5. Set the distance from focus to the point equal to the distance from directrix

to the point

6. Find the distance from the point on the parabola to the directrix

Alina [70]3 years ago
4 0

Step-by-step explanation:

<u>Step 1:  Answer question 1</u>

<u />(x + 1)^2 + (y + 8.75)^2 = (y + 9.25)^2

        x^2 + 2x + 1 = 2y + 9

What we are doing in this problem, is that we are squaring both sides in order to help simplify.  Number 1 has the second option or B.

<u>Step 2:  Answer question 2</u>

<u />\sqrt{(x + 1)^2 + (y + 8.75)^2}<u />

What we are doing is that we are finding the distance from the point on the parabola to the directrix.  Number 2 has the last option or F.

<u>Step 3:  Answer question 3</u>

Use (x, y)

What we are doing is that we are finding a point on a parabola.  Number 3 has the fifth option or E.

<u>Step 4:  Answer question 4</u>

<u />y = \frac{1}{2}x^2 + x - 4<u />

What we are doing is that we are writing the equation of the parabola.  Number 4 has the third option or C.

<u>Step 5:  Answer question 5</u>

<u />\sqrt{(x + 1)^2 + (y + 8.75)^2} = \sqrt{(y + 9.25)^2}

What we are doing is that we are setting the distance from focus to the point equal to the distance from directrix.  Number 5 has the first option or A.

<u>Step 6:  Answer question 6</u>

<u />\sqrt{(y + 9.25)^2}

What we are doing is that we are finding the distance from the point on the parabola to the directrix .  Number 5 has the fourth option or D.

You might be interested in
A man who moves to a new city sees that there are two routes he could take to work. A neighbor who has lived there a long time t
sergiy2304 [10]

Answer:

0.3 to 2.3 min

Step-by-step explanation:

n1=n2=10

x1=48

x2=49

s1=4

s2=1

Determine the deegres of freedom.

\delta=\frac{(\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2})^2}{\frac{(\frac{s_1^2}{n1})^2}{n_1-1}+\frac{(\frac{s_1^2}{n1})^2}{n_2-1}}=10.14

t=2.037 (student's appendix)

E=t\sgrt(\frac{s_1^2}{n_1}+\frac{s^2_2}{n_2})=1.3

(x_1-x_2)-E=(48-49)-1.3=-2.3

(x_1-x_2)+E=(48-49)+1.3=0.3

We are 95% confident that average commuting time for  rute A is between 0.3 and 2.3 min shorter than for rute B.

5 0
3 years ago
Christopher spends a total of $235.94. He
cluponka [151]

Answer:

He bought 6 sweaters

Step-by-step explanation:

235.94-80.00=155.94

155.94/25.99=6

6 0
3 years ago
Help me please I need help with this problem
ryzh [129]
Time it by the number before hand and you get 8 then 16 then 32 . Think about it it works and it’s a consistent continental
3 0
3 years ago
Please help. I can not figure it out. I will mark brainliest.
zhuklara [117]
(0,30), (1,20)
(20-30)/(1-0) = -10/1 = -10 slope
We know y intercept is 30
Equation: y = -10x + 30
6 0
2 years ago
Find each product mentally. show the steps you used.7 × 2.9
JulijaS [17]
Answer is 20.3 and the steps are:
1.) 7 x 9 = 63 move the six over the 2 leave the 3 down
2.) 7 x 2 = 14
3.) 14 + 6 = 20
4.) you have 203 but must bring the decimal down and it makes it: 20.3
I hope I helped and if you're confused please ask questions
6 0
3 years ago
Other questions:
  • Scientists released 6 rabbits into a new habitat in year 0. Each year, there were four times as many rabbits as the year before.
    5·2 answers
  • Which of the following methods would be the easiest to use to solve x2 – 7 = 0?
    11·2 answers
  • 50 pts. <br><br> Solve this algebraic equation.<br><br> -6x + 5 + 12x -6
    13·2 answers
  • Solve the inequality -2(y + 5) + 20 &gt; 6.
    12·1 answer
  • Find the surface area of the come in terms of pi
    15·1 answer
  • 100 POINTS
    11·2 answers
  • When you cut a pyramid straight up and down, what shape is your cross section?
    9·2 answers
  • On Tuesday morning a school cafeteria served 16 gallons of orange juice during breakfast. How many cups are in 16 gallons?
    12·2 answers
  • Whiw do you graph y=3x-2
    7·1 answer
  • Veronica needs blinds for the window in her bedroom. the window is 2 meters tall and 4 meters wide. what is the area of the wind
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!