3 years ago

At what point on the curve x^2 + y^2 = 9 is the tangent line vertical?

Mathematics

1 answer:

Gemiola [76]3 years ago

7 0

x² + y² = 9 is the equation of a circle with center (0, 0) and radius 3.

This puts the vertices at (-3, 0), (3, 0), (0, -3), and (0, 3).

When is the tangent line vertical? <em>when it passes through the x-axis.</em>

Answer: (-3, 0), (3, 0)

You might be interested in

Find the sum-8 + (-2)A) -10B) -6C) 10D) 6

Nataly [62]

The answer is a. -10

7 0

3 years ago

Read 2 more answers

15. The graph of a linear function, f(x), is shown below. If the line is translated 2 units

Leto [7]

Answer: fx-2 i believe since translating down would subtract two

Step-by-step explanation:

4 0

3 years ago

About how many people out of 350 would likely wear blue jeans?

skelet666 [1.2K]

Answer:84

Step-by-step explanation:

Set up a proportion

36/150 =x/350

Cross multiply then divide

4 0

3 years ago

Read 2 more answers

The distance between Eagle Lake and Swallow Lake on a map is 9 cm. The scale of the map is 4 cm = 2 km.

Sedbober [7]

Answer:

4½ km

Step-by-step explanation:

2 cm= 1 km

1 cm= ½ km

4cm×2km = 8cm

8 cm (4 km) + 1 cm (½ km) = 9 cm

9 cm/ 4 ½ km

4 0

3 years ago

A fireman's water hose shoots 320 kg of water each second against the door of a building. The velocity of the water is 20 m/s an

NeX [460]

Answer:

$6400\ \text{N}$

Step-by-step explanation:

$\dfrac{m}{t}$ = Mass flow rate of water = 320 kg/s

$m$ = Mass of water on the door

$t$ = Time

$v$ = Velocity of water on the door = 20 m/s

Force is given by

$F=\dfrac{m}{t}v\\\Rightarrow F=320\times 20\\\Rightarrow F=6400\ \text{N}$

The average force is exerted by the stream of water is $6400\ \text{N}$ .

3 0

3 years ago