1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
soldier1979 [14.2K]
3 years ago
10

If a bicycle has 2 gears in the front, and 5 in the rear, how many different combinations of gears are possible?

Engineering
1 answer:
lidiya [134]3 years ago
7 0

Answer:

10

Explanation:

Front gear = 2

Rear gear = 5

The number of possible combination of gears :

2 different gears :

We find the number of ways of selecting 1 front gear from 2 and also 1 rear gear from 5

2C1 * 5C1

nCr = n! ÷ (n-r)!r!

2C1 = 2 ÷ 1 = 2

5C1

5C1 = 5! ÷ (5-4)! * 1

5C1 = 5 ÷ 1 = 5

2C1 * 5C1

2 * 5 = 10

You might be interested in
What do you enjoy most and least about engineering?
melisa1 [442]

Answer:

“I really love the design work in engineering, the face-to-face interaction with clients, and the opportunity to see projects come to life. But if I had to pick one thing that I don’t enjoy as much, I would have to say it’s contract preparation.”

5 0
3 years ago
Read 2 more answers
I need help on this questions they dont give you options soo
denis23 [38]
16 unplug
18 surge?
19 flowing/conductive?
20 ear protection?
8 0
3 years ago
Air flows from a large reservoir in which the pressure and temperature are 1 MPa and 30°C, respectively, through a convergent–di
SSSSS [86.1K]

Answer:

The solution is attached in the attachment.

3 0
3 years ago
Read 2 more answers
What is a combination circuit? A combination circuit:
Anon25 [30]

Answer:

Combination circuit; The basic strategy for the analysis of combination circuits involves using the meaning of equivalent resistance for parallel branches to transform the combination circuit into a series circuit.

Example:

The use of both series and parallel connections within the same circuit. In this case, light bulbs A and B are connected by parallel connections and light bulbs C and D are connected by series connections. This is an example of a combination circuit.

7 0
3 years ago
Intravenous infusions are usually driven by gravity by hanging the bottle at a sufficient height to counteract the blood pressur
Bingel [31]

Answer:

(a) BP = 11.99 KPa

(b) h = 2 m

Explanation:

(a)

Since, the fluid pressure and blood pressure balance each other. Therefore:

BP = ρgh

where,

BP = Blood Pressure

ρ = density of fluid = 1020 kg/m³

g = acceleration due to gravity = 9.8 m/s²

h = height of fluid = 1.2 m

Therefore,

BP = (1020 kg/m³)(9.8 m/s²)(1.2 m)

<u>BP = 11995.2 Pa = 11.99 KPa</u>

(b)

Again using the equation:

P = ρgh

with data:

P = Gauge Pressure = 20 KPa = 20000 Pa

ρ = density of fluid = 1020 kg/m³

g = acceleration due to gravity = 9.8 m/s²

h = height of fluid = ?

Therefore,

20000 Pa = (1020 kg/m³)(9.8 m/s²)h

<u>h = 2 m</u>

7 0
3 years ago
Other questions:
  • A wide-sense stationary process X(t) is the input to a linear system whose impulse response is h(t)=2e^(-7t), t≥0.
    11·1 answer
  • A one-dimensional plane wall of thickness 2L=80 mm experiences uniform thermal generation of q= 1000 W/m^3 and is convectively c
    9·1 answer
  • A battery is an electromechanical device. a)- True b)- False
    6·1 answer
  • Koch traded Machine 1 for Machine 2 when the fair market value of both machines was $60,000. Koch originally purchased Machine 1
    10·1 answer
  • For each of the species below, identify any cyclic conjugated system, then: A. Determine the number of electrons in a system of
    7·1 answer
  • A customer got debited twice, how would you investigate and resolve this conflict on the customer side and on the company side?
    5·1 answer
  • Compute the atomic density (the number of atoms per cm3 rather than mass density g/cm3) for a perfect crystal of silicon at room
    14·1 answer
  • Is the science of measurement
    6·1 answer
  • What is the name of the type of rocker arm stud that does not require a valve adjustment?
    12·1 answer
  • The primary of an ideal transformer has 400 turns and its secondary has 200 turns. Neglecting electrical losses, if the power in
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!