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2 years ago

Look at the picture below// 50 points // please help:((

Mathematics

2 answers:

34kurt2 years ago

7 0

A parabola is the locus of points equidistant from the focus and directrix. This means the distance from the green point is the same to the focus as it is to the directrix. The appropriate choice is ...

... B. 7

GaryK [48]2 years ago

5 0

Hi there!

I believe your answer would be B. 7. I say this because the focus is the same distance away from the green point as the directrix is away from the point.

Hope this helps!

- Chris

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N a certain region, the electric potential due to a charge distribution is given by the equation v(x,y,z)=3(x^2)(y^2) +y(z^3) -

katrin [286]

The electric field $\mathbf E$ is the negative of the gradient of the electric potential:

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At the point (1.0, 1.0, 1.0), the electric field has magnitude

$\|\mathbf E\|=\|(4.0,7.0,-3.0)\|=8.6\dfrac{\rm V}{\rm m}$

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2 years ago

10 ft А - “不 6 ft v 10 ft - 12 ft B C | 12 ft 4 ft 4 ft

Phoenix [80]

Answer:

Step-by-step explanation:

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8 0

2 years ago

Sum of 5 times of x and thrice of y is 106

Lostsunrise [7]

Answer:

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8 0

2 years ago

Read 2 more answers

"In quadrilateral QRST, m∠Q is 68°, m∠R is (3x + 40)°, and m∠T is (5x − 52)°. What are the measures of ∠R , ∠S , and ∠T ? Write

34kurt

TQRS is an inscribed quadrilateral.
5 x - 52° + 3 x + 40° = 180°
8 x - 12° = 180°
8 x = 180° + 12°
8 x = 192°
x = 192° : 8 = 24°
m∠ R = 3 · 24° + 40° = 112°
m∠ T = 5 · 24° - 52° = 68°
m∠ S = 360° - ( 68° + 68° + 112° ) = 112°
Answer:
m∠R, m∠S, m∠T = 112°, 112°, 68°.

4 0

2 years ago

Read 2 more answers

A boat is being pulled into a dock with a rope attached to the boat at water level. When the boat is 12 feet from the dock, the

Natali5045456 [20]

Given :

A boat is being pulled into a dock with a rope attached to the boat at water level. When the boat is 12 feet from the dock, the length of the rope form the boat to the dock is 3 feet longer than twice the height of the dock above the water.

To Find :

The height of the dock.

Solution :

This will make a right angle triangle as given in link below .

Now , applying Pythagoras theorem :

$(2h+3)^2=h^2+12^2\\\\4h^2+9h+9=h^2+144\\\\h^2+4h-45=0\\\\(h-5)(h+9)=0$

Now , h = 5 or h = -9 .

Now , height cannot be negative .

So , height of the dock is 5 ft .

Hence , this is the required solution .

8 0

2 years ago