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
12345 [234]
3 years ago
12

What is the check digits (d) for the master card number 5130 7201 2608 209d A)1 B)3 C)5 D)7

Mathematics
1 answer:
LenKa [72]3 years ago
6 0

I hope this is just a maths problem coz if this is your card number I wouldn't be putting it on here for all to see.

You might be interested in
The sixth-graders at Ruben's school got to choose between a field trip to a museum and a field trip to a factory. 30 sixth-grade
earnstyle [38]
60 percent!

I hope this helped!
3 0
3 years ago
The bike store marks up the wholesale cost of all of the bikes they sell by 30%.
Dmitrij [34]

Answer:

Suppose that the wholesale of a bike is A (A is the 100% in this case). If we have an increase of 30% for the sale price, we have the new price of:

Price = A + (30%/100%)A = A + 0.3*A = (1.3)*A

Then if we know that the price tag of the bike is $125, then we have:

$125 = (1.3)*A

$125/1.3 = A = $96.15

The wholesale cost of the bike is $96.15

6 0
3 years ago
Read 2 more answers
Find the equation of the axis of symmetry of the parabola.
Stolb23 [73]

Answer:

Just substitute 0 instead of f (x),therefore

x { }^{2}  - 12x + 36 \\ x = 6

The answer option is C

7 0
3 years ago
A group of rowdy teenagers near a wind turbine decide to place a pair of
Marrrta [24]

Answer:

a) Hence the equation of the sinusoidal function that describes the height of the shorts in terms of time is y = 9 + 7* sin(\pi * t / 15 - \pi  / 6)

b) Hence the height of the shorts at exactly t = 10 minutes, to

the nearest tenth of a meter is 5.5 meters

Step-by-step explanation:

a) The wind turbine blade traverses a circular path as it rotates with time (t), whose time variation is given by the following trajectory equation :

x^2 + (y-yc)^2 = R^2 ,

where  

R = (16 m - 2 m)/2 (since diameter = maximum height - minimum height of the pink short)

= 14 m / 2

= 7 m (radius of the circle)

Also, center of the circle will be at (0, 2 + R) i.e (0,9)

So,  is the trajectory path equation to the circle

Let x = 7* cos(w*t + \phi ) & y = 9 + 7* sin(w* t + \phi) be the parametric form of the above circle equation which represent the position of the pink shorts at the tip of the blade at time t  

At t= 10s, y = 16 m so we have,

9 + 7 * sin(10* w + \phi) = 16 ---------------(1)

Also, at t= 25s, y =2 m so we have,

9 + 7* sin(25 * w +\phi) = 2--------------(2)

Solving we have, 10* w + \phi = \pi/2 & 25*w + \phi = 3*pi/2

15* w = \pi\\\\w = \pi/15 & \phi = \pi/2 - 10*\pi/15 = -\pi / 6  

Therefore y = 9 + 7* sin(\pi * t / 15 - \pi  / 6) is the instantaneous height of the pink short at time t ( in seconds)

b) At t= 10minutes = 10 * 60 s = 600s, we have,

y = 9 + 7 * sin(\pi * 600/15 - \pi / 6)\\\\= 9 + 7 * sin(40* \pi - \pi / 6)

= 5.5 meters (pink short will be at 5.5 meters above ground level at t= 10 minutes)

5 0
3 years ago
Help Me Please! I will give you 5 stars if your answer is correct!
lys-0071 [83]

Answer:

S

......................

.....................

5 0
2 years ago
Read 2 more answers
Other questions:
  • What is y-6 = 2(x+5) in standard form?
    12·1 answer
  • The puppy daycare has 38 doggie treats for 9 dogs to share evenly. The leftovers will be placed back into the jar.
    5·2 answers
  • 2, 8, 7, 8, 6, 15, 6, 3, 8
    11·2 answers
  • The length of an angle is the reaction of the opposite leg length to the hypotenuse length
    7·1 answer
  • Given: g(x) = square root x-4 and h(x) = 2x - 8 What are the restrictions on the domain of g of h. x greater than or equal to
    13·1 answer
  • Charlie run at a speed of 3 yards per second. about how many miles per hour does charlie run?
    10·1 answer
  • each Locker requires 3 ft of space how many lockers can the school build with 43 ft of space how much space will the school have
    15·1 answer
  • Given the parent function f(x)=x^2 give the best description of the graph of y=x^3+3. a. expanded vertically by a factor of 5 c.
    15·2 answers
  • Keegan says that a quadrilateral is a square if and only if it is a rectangle. Is this a true biconditional statement?
    13·1 answer
  • Passes through (-1, 4) and m=4
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!