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2 years ago

I need a equation for my parabola! I tried so many times and got it WroNg-

Mathematics

1 answer:

rodikova [14]2 years ago

5 0

Answer:

Step-by-step explanation:

Not QUITE a parabola . but up until y = 4 it is close

Vertex = (-7-10)

Vertex form of parabola

y = a ( x+7)^2 -10 find a integer-coordinat point to calculate 'a'

I'll use -18,0

0 = a(-18+7)^2 -10

0 = 122 a -10 a = 10/122

y = 10/122 (x+7)^2 - 10 see graph below:

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Angles in circle solve for each variable

kakasveta [241]

Answer:

x degree = 112 degree

Step-by-step explanation:

let the intersecting point of two cords be O.

then arc QR = angle QOR

which means ; 68 degree = angle QOR

Now,

angle QOR + angle POQ = 180 degree ( linear pair )

or, 68 degree + angle POQ = 180 degree

hence, angle POQ = 112 degree,.

3 0

3 years ago

Grayson is flying a kite, holding his hands a distance of 2.75 feet above the ground and letting all the kite’s string play out.

sergiy2304 [10]

The position of the kite with the point directly beneath the kite at the same

level with the hand and the hand for a right triangle.

The height of the kite above the is approximately 66.314 feet.

Reasons:

The height of his hands above the ground, h = 2.75 feet

Angle of elevation of the string (above the horizontal), θ = 26°

Length of the string, l = 145 feet

Required:

The height of the kite above the ground.

Solution:

The height of the kite above the ground is given by trigonometric ratios as follows;

$\displaystyle Height \ of \ kite, \, k_h = \mathbf{h + l \times sin(\theta)}$

Therefore;

$\displaystyle Height \ of \ kite, \, k_h = 2.75 + 145 \times sin(26^{\circ}) \approx \mathbf{66.314}$

The height of the kite above the, $k_h$ ≈ 66.314 feet

Learn more about trigonometric ratios here:

brainly.com/question/9085166

8 0

3 years ago

Pls awnser the question

Dimas [21]

Download photomath it’ll answer it 4 u

5 0

3 years ago

-7n - 7 + 8 + 10n Can someone please figure this out?!???

Step2247 [10]

The answer is 3n+1

What i did was add the like terms.

-7n+10n= 3n

-7 + 8=1 (the 7 is negative because it's being subtracted)

if you put it together you get 3n+1

hope this helps

6 0

4 years ago

Read 2 more answers

A fast car travels 420 miles in a period of 210 minutes. What is the adverage rate of change of distance of the car in miles per

nikitadnepr [17]

If you would like to know the average rate in miles per hour, you can calculate this using the following steps:

420 miles ... 210 minutes
x miles = ? ... 1 hour = 60 minutes

420 * 60 = 210 * x
x = 420 * 60 / 210
x = 120 miles

The correct result would be 120 miles per hour.

7 0

3 years ago

I need a equation for my parabola! I tried so many times and got it WroNg- ​

I need a equation for my parabola! I tried so many times and got it WroNg-