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luda_lava [24]
3 years ago
9

What expression would give the number of ways to choose a group of 7 from a group of 15?

Mathematics
1 answer:
ipn [44]3 years ago
3 0
C(15, 7)
(15 * 14 * 13 * 12 * 11 * 10 * 9)/(7 * 6 * 5 * 4 * 3 * 2 * 1) = 6435 groups
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Solve: 3(5x - 8) = 6x + 39
soldier1979 [14.2K]

Steps to solve:

3(5x - 8) = 6x + 39

~Distribute left side

15x - 24 = 6x + 39

~Add 24 to both sides

15x = 6x + 63

~Subtract 6x to both sides

9x = 63

~Divide 9 to both sides

x = 7

Best of Luck!

6 0
3 years ago
Can someone explain this to me please? I will give brainliest to the best answer!
mojhsa [17]

The volume of a cylinder is V = \pi r^{2} h

  • r is the radius (half of the diameter which is 34m) --> 17m
  • height: 27m
  • \pi: 3.14

Thus the volume = \pi (17)^2*27=3.14*17^2*27=24501.42m^{3}

Hope that helped!

8 0
2 years ago
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1. -168 < -12a
kotegsom [21]

Answer:

See step by step explanation

Step-by-step explanation:

1. a<14

2. m </ 25

3. n >/ 7

6 0
3 years ago
Read 2 more answers
A projectile is thrown upward so that its distance above the ground after t seconds is h = -16t2 + 608t.After how many seconds d
Nat2105 [25]
The question is asking you to find the axis of symmetry, which is the x-value of the vertex. In order to do that you need to factor the function to find the zeros and add the zeros together and divide by two to find the axis of symmetry.
y=-16x^2+608x
y=-16x(x-38)
Zeros: x=0 and x=38
38/2=19
Therefore it takes 19 seconds for the projectile to reach its maximum height.
Hope this helps!
3 0
3 years ago
It takes Planet Folger 24 hours to complete a full rotation. It takes Planet Keurig approximately 58 days, 15 hours, and 30 minu
valkas [14]
Aday=24 hours
58days=24 times 58=1392 hours

60min=1hr
30min=1/2hr=0.5hr


total is
1392+15+0.5=
1407.5hours
5 0
3 years ago
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