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skelet666 [1.2K]
4 years ago
15

(10 letters) the second number in an ordered pair it tells the distance to move up or down from the origin

Mathematics
2 answers:
Paladinen [302]4 years ago
7 0
The first is x-intercept without the -
I'm not too sure what you meant in the second part.
Darina [25.2K]4 years ago
7 0

Answer:

13) Ordinate

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

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In circle B, given isosceles triangle BTX, BA ⟂ WX, and WX = 10, what is the radius of circle B rounded to the nearest whole num
Eva8 [605]

Solution :

We observe that :

$\overline {BA} \perp \overline {WX}$

But BA is the perpendicular.

From the center B and WX is a chord.

Therefore, TW = TX (perpendicular from the centre of a circle to a chord bisects it)

Consider Δ BTX,

∠BTX = 90° (BA ⊥ WX)

BT = XT (Δ BTX is isosceles)

Since the angles opposite to equal sides are equal of a triangle arc are equal.

∠BTX = ∠BXT

But in the triangle,

∠TBX + ∠TXB + ∠BTX = 180°

∠TBX + ∠TBX + 90° = 180°

2 ∠TBX = 90°

∠TBX = 45°

From trigonometry, we get

$\sin \theta =\frac{TX}{BX}$    ...............(1)

WX = 10

i.e., TX + TW = 10

But TX  = TW

     2 TX = 10

         Tx = 5

BX = radius of circle.

∴ $\sin 45^\circ = \frac{5}{BX}$

  $\frac{1}{\sqrt2} = \frac{5}{BX}$

 $BX = 5\sqrt2$

        $=5 \times 1.41$

        = 7

Therefore, the radius of the circle is 7 units.

4 0
3 years ago
A model rocket launched directly upward at a speed of 16 meters per second from a helght of 2 meters . The f(t) = - 4.9t ^ 2 + 1
Anton [14]

Answer:

f(t) = 15.06 m

Step-by-step explanation:

The relationship between the height of the rocket and the time after launch, t. In seconds is given by :

f(t) = - 4.9t ^ 2 + 16t + 2

We need to find the maximum height the rocket will reach the ground.

When it reaches the ground,

f(t) = 0

So,

Maximum height,

f'(t) = 0

-9.8t+16=0\\\\t=\dfrac{16}{9.8}\\\\t=1.63\ s

Put t = 1.63 in equation (1).

f(1.63) = - 4.9\times (1.63 ^ 2) + 16(1.63) + 2\\\\=15.06\ m

So, the maximum height of the rocket is 15.06 m.

4 0
3 years ago
100% as decimal and fraction
irga5000 [103]
1.0 and 1/1

100% is the same as 1.
5 0
3 years ago
Read 2 more answers
The area of the total surface of a square based pyramid is
solniwko [45]

Answer: V = 366917713920 cm³

5 0
3 years ago
Can someone please help me
Kryger [21]

Based on definition of <em>unit</em> circle and <em>angle</em> properties on <em>Cartesian</em> plane, we find the following results: A: π/5, B: 3π/7, C: 4π/3.

<h3>How to determine angles in a unit circle</h3>

<em>Units</em> circles are commonly used to understand angles and <em>trigonometric</em> functions in a simple way. Vectors in a <em>unit</em> circle are <em>ordered</em> pairs of <em>polar</em> form: (x, y) = (cos θ, sin θ).

To solve this problem, we must take these tips into account:

  1. Angles in the <em>first</em> quadrant are within 0 < θ < π/2.
  2. Angles in the <em>second</em> quadrant are within π/2 < θ < π.
  3. Angles in the <em>third</em> quadrant are within π < θ < 3π/2.
  4. Angles in the <em>fourth</em> quadrant are within 3π/2 < θ < 2π.

Then, we have the following results: A: π/5, B: 3π/7, C: 4π/3.

To learn more on angles: brainly.com/question/13954458

#SPJ1

3 0
2 years ago
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