3 years ago

If tan θ=−4/7, and 270°<θ<360°, what is sec θ?

Mathematics

1 answer:

kondaur [170]3 years ago

5 0

Answer:

1.15

Step-by-step explanation:

tan θ=−4/7, and 270°<θ<360°

θ is in 4th quadrant

sec θ = 8.06 / 7 = 1.15

You might be interested in

6/9 9/12 wich one is bigger

Alexxandr [17]

Answer:

9/12

Step-by-step explanation:

because I is the biggest number

3 0

3 years ago

Read 2 more answers

Please Help!

PtichkaEL [24]

It's two. 50% chance of heads, 50% chance of tails.

7 0

3 years ago

Find the flow rate through a tube of radius 6 cm, assuming that the velocity of fluid particles at a distance r cm from the cent

vaieri [72.5K]

Answer:

791.68 cm/s

Step-by-step explanation:

The volume flow rate can be interpreted as the integral of fluid velocity over area

$\dot{V} = \int\limits^6_0 {v(r) 2\pi r} \, dr\\\dot{V} = 2\pi\int\limits^6_0 {(25-r^2)r} \, dr\\\dot{V} = 2\pi\int\limits^6_0 {25r-r^3} \, dr\\\\\dot{V} = 2\pi[12.5r^2 - r^4/4]_0^6\\\dot{V} = 2\pi(12.5*6^2 - 6^4/4 - 12.5*0 - 0)\\\dot{V} = 2\pi*126 = 791.68 cm/s$