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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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3x^2=2x+5 in standard form
borishaifa [10]

Answer:

Answer is given below with explanations.

Step-by-step explanation:

given \: equation \: is \:  \\ 3 {x}^{2}  = 2x + 5 \\ to \: find \: standard \: form \: of \: equation \\ subtracting \: 2x + 5 \: on \: both \: sides \: we \: get \\ 3 {x}^{2}  - (2x + 5) = 0 \\ 3 {x}^{2}  - 2x - 5 = 0 \\ this \: is \: the \: standard \: form \: of \: equation.

<em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>

7 0
4 years ago
PLEASE PLEASE HELP ME WITH THIS!
andreev551 [17]

No. You can actually solve this question without doing any math. Her only score that is above a 90 is 93, so it will be brought down lower than a 90 very easily by the 77 and the 82.

5 0
4 years ago
Will mark brainliest!
Tems11 [23]

Answer:

$2,833.47

Step-by-step explanation:

n = [lnA - lnP] / ln(1 + i)

n = [ln15000 - ln10000] / ln(1 + 0.03)

n = [9.6158 - 9.2103] / 0.0296

n = 13.70

13 years, 8 months and 12 Days

Part 2:

P = A / [(1 + i)n]

P = 15000 / [(1.03)4]

P = 15000 / 1.1255

P = $13,327.31

Part 3:

A = 10000 (1 + 0.04)5

A = $12,166.53

The amount of money you need to save to buy a car at $15,000 would be;

$15,000 - $12,166.53

=> $2,833.47

4 0
3 years ago
Marta bought a paperweight in the shape of a cone. The radius was 10 centimeters and the height was 9 centimeters. Find the volu
mixas84 [53]

Answer:

V≈942.48cm³

Step-by-step explanation:

hope this helps

4 0
3 years ago
Read 2 more answers
which graph represents (x,y)(x,y)left parenthesis, x, comma, y, right parenthesis-pairs that make the equation y = 0.5x+5y=0.5x+
Gnom [1K]

Answer:

c

Step-by-step explanation:

its right ok?

6 0
3 years ago
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