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3 years ago

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Mathematics

1 answer:

stepan [7]3 years ago

8 0

6n+6.25=48.25

Hope I helped

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Dale is in a ski rental shop trying to decide which equipment to rent for the day. The shop offers 4 kinds of skis and 3 kinds o

Hoochie [10]

Answer:

Step-by-step explanation:

Simply multiply all the numbers together.

4 * 3 = 12

12 * 8 = 96

There are 96 possible combinations.

If this helped, please mark brainliest :D

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3 years ago

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In which equation is the constant of proportionality 5?

vredina [299]

I think the answer is 16 sorry if wrong

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3 years ago

Match the steps to find the equation of the parabola with focus (-1, 2) and directrix x = 5.

Archy [21]

Answer:

The matched options to the given problem is below:

Step1: Choose a point on the parabola

Step2: Find the distance from the focus to the point on the parabola.

Step3: Use (x, y).

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

Step4: Set the distance from focus to the point equal to the distance from directrix to the point.

Step5: Square both sides and simplify.

Step6: Write the equation of the parabola.

Step by step Explanation:

Given that the focus (-1,2) and directrix x=5

To find the equation of the parabola:

By using focus directrix property of parabola

Let S be a point and d be line

focus (-1,2) and directrix x=5 respectively

If P is any point on the parabola then p is equidistants from S and d

Focus S=(-1,2), d:x-5=0

Step1: Let P(x,y) be any point on parabola

Step2: Therefore the $d=\sqrt{(x+1)^2+(y-2)^2}\hfill (1)$

Step3: The perpendicular distance from p to d is

$\frac{|x-5|}{\sqrt{(-1)^2+2^2}}$

$=\frac{|x-5|}{\sqrt{5}}\hfill (2)$

Step4: equating (1) and (2)

$\sqrt{(x+1)^2+(y-2)^2}=\frac{|x-5|}{\sqrt{5}}$

Step5: squaring on both sides

$(x+1)^2+(y-2)^2=\frac{|x-5|^2}{5}$

$5[(x+1)^2+(y-2)^2]=(x-5)^2$

$5[x^2+2x+1+y^2-2y+4-x^2+10x-25]=0$

$12x+y^2-2y-24=0$

Step6: Equation of the parabola is

$y^2-2y+12x-24=0$

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3 years ago

6. The first quartile (rounded to the nearest tenth if needed) of the following data set is: 15. 16. 17. 23. 11. 19. 20. 15, 18,

Rainbow [258]

Answer:

Step-by-step explanation:

first of all arrange this data from ascending to descending order.

11,15,15,15,16,17,18,19,20,22,23

use formula

N+1/4 (N means no of observations)

11+1/4

12/4

3 rd term

therefore Q1=15

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3 years ago

Is surface area 3-dimensional?

masha68 [24]

Considered as it only taking the area of flat surfaces of a 3D object, no

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