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alexira [117]
4 years ago
5

Choose the correct conic section to match the equation. y 2 = 36x I need help

Mathematics
2 answers:
GREYUIT [131]4 years ago
7 0
Remark
I take it that you mean y^2 = 36x. The first thing you should try and do is get a graph of the given equation. I've done that for you. Notice a few characteristics.

1. The graph opens left. Usually most graphs like this one open up or down.
2. The graph is open ended on the right. 
3. There is only one open end.
4. The graph is continuous, but it is not a function. (that's a fact -- but not needed in this question).

When you get a graph looking like this, you have either a graph called a quadratic or a parabola. Either (but not both) could be your answer. If you have choices list them in a comment.
7nadin3 [17]4 years ago
5 0

Answer:

the answer is parabola

Step-by-step explanation:


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Riley is saving up to buy a new television. She needs a total of $1,049.77. Riley has saved $200.79 already and earns $77.18 per
Xelga [282]

11 weeks are required for Riley to work to save enough money to buy the new television

<h3><u>Solution:</u></h3>

Given that Riley needs a total of $1,049.77

Riley has saved $200.79 already and earns $77.18 per week at her job

To find: Number of weeks Riley need to work to save enough money to buy the new television

Remaining amount needed = $1,049.77 -  $200.79

Remaining amount needed = $ 848.98

Let "n" be the number of weeks Riley need to work to save enough money to buy the new television

Also she earns $77.18 per week at her job

1 week ⇒ $ 77.18

"n" weeks ⇒ $ 848.98

Therefore, by cross multiplication,

n \times 77.18 = 1 \times 848.98\\\\n = \frac{848.98}{77.18}\\\\n = 11

Therefore 11 weeks are required for her to work to save enough money to buy the new television

<h3><u>Method 2:</u></h3>

<em>Total amount = amount already saved + ($77.18 per week at her job)("n" weeks)</em>

1,049.77 = 200.79 + (77.18)(n)

1049.77 - 200.79 = 77.18n

848.98 = 77.18n

n = \frac{848.98}{77.18}

n = 11

Therefore 11 weeks are required for her to work to save enough money to buy the new television

5 0
3 years ago
Need help question 4
zysi [14]
You need to find what 3 is if 5 is $520,000
$520,000 divided by 5 = 104,000
104,000 x 3 = 312,000

Therefore 3 is 312,000
Hope this helps :3
5 0
3 years ago
Solve the equation -3+1+10x=x+4 <br> hurry homies
ddd [48]

Answer:

x = 2/3

Step-by-step explanation:

combine -3 and 1.  We get -2 there, and now have:

-2 + 10x = x + 4.

Combining the x terms, we get 9x = 6, so that x = 6/9, or x = 2/3

7 0
3 years ago
Read 2 more answers
1.Kori spent $46.20 on 12 gallons of gasoline. What was the price per gallon?
spin [16.1K]

1: B $3.85

2: C The rabbit; 14 miles per hour

3: C 2 1/2 miles

1. Reason: To find the price per gallon, all you need to do is divide 46.20 by 12 to get 3.85

2. Reason: To find which animal is faster all you have to do is subtract the greater number, which is the rabbit that travels 35 miles per hour from the smaller number which is the fox that travels 21 miles.

Subtract: 35-21= 14. So the rabbit is faster by 14 miles.

3. Reason: If Randy walks 1/2 mile in every 1/5 hour, to find the much he will walk in a hour you could count up:

1/2 mile = 1/5 hour

1 mile = 2/5 hour

1 1/2 mile = 3/5 hour

2 mile = 4/5 hour

2 1/2 mile = 1 hour

So, Randy will travel 2 1/2 miles in a hour.

8 0
3 years ago
Find the equation of the line using the point-slope formula. Write all the final equations
vivado [14]

Answer:

y=\frac{1}{2}x+\frac{5}{2}

Step-by-step explanation:

We are going to find the slope by lining up the points vertically and subtract, then put 2nd difference over first.

Also you could just use \frac{y_2-y_1}{x_2-x_1}.  It is the same thing.

(  5  ,   5)

-(  1  ,   3)

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

  4      2

So the slope is 2/4 or 1/2 after reducing.

The point-slope form a line is

y-y_1=m(x-x_1) with a point on the line (x_1,y_1)=(1,3) given and with slope m=\frac{1}{2} given.

y-3=\frac{1}{2}(x-1)

We are going to solve this for y and simplify what we can because our goal is y=mx+b; this is slope-intercept form.  It is called that because it tells us the slope,m, and the y-intercept,b.

Distribute:

y-3=\frac{1}{2}x-\frac{1}{2}

Add 3 on both sides:

y=\frac{1}{2}x-\frac{1}{2}+3

Simplify:

y=\frac{1}{2}x+\frac{5}{2}

4 0
3 years ago
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