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Paraphin [41]
3 years ago
8

Choose the correct formula for combination. A . n!/r!(n-r)! B. n!/(n-r)!

Mathematics
1 answer:
OleMash [197]3 years ago
4 0

Answer:

B

Step-by-step explanation:

The number of combinations of n objects taken r at a time is determined by the following formula: C(n,r)=n!/(n−r)!

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Plot two numbers on the numberline that are 7 units from 3<br><br> Is this correct?
dalvyx [7]

Answer:

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Step-by-step explanation:

It is 7 units from 3 not 3 the number itself

5 0
3 years ago
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If 15% off an item cost 36.21 then what would 100% of the item be?
harina [27]
1-0.15=0.85
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3 years ago
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A line that includes the point (2,10) has a slope of 9. What is its equation in slope-intercept form
Bumek [7]

Equation: y= 9x+ (y-intercept)

Step-by-step explanation:

equation in slope-intercept form is y=mx+b. <em>m</em> represents the slope of the line, and <em>b</em> represents the y=intercept, which is where the line crosses the y-axis.

3 0
3 years ago
Thirteen less than eight times a number is three more than four times the number.
Lisa [10]

Answer:

Step-by-step explanation:

Let the number = x

8x - 13 = 4x + 3              Add 13

8x = 4x + 3 + 13             Combine

8x = 4x + 16                   Subtract 4x

8x - 4x = 16                    Combine

4x = 16                           Divide by 4

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6 0
3 years ago
5/8 - 4/5 subtract as indicated and express your answer in lowest terms
Nitella [24]

Answer:

-7/40

Step-by-step explanation:

5/8 - 4/5

~Find common denominators

25/40 - 32/40

~Subtract

-7/40

Best of Luck!

4 0
3 years ago
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