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Lapatulllka [165]
3 years ago
6

If a1=47 and d=-5 find a12

Mathematics
1 answer:
kkurt [141]3 years ago
6 0
The answer is 564 :)
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valentina_108 [34]

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3 0
3 years ago
Need urgent help in mathematics!! Will mark brainliest!!!!
sesenic [268]

Hey there!!

How do we solve this problem :

We will use the combinations formula to solve this :

c ( n , r ) where n = 11 and r = 2

c ( n , r ) =  n ! / r ! ( n - r ) !

... 11 ! / 2 ! ( 11 - 2 ) !

... 11! / 2! × 9!

... 11! / 2 × 9!

... 11×10×9×8×7×6×5×4×3×2 / 2×9×8×7×6×5×4×3×2

... 11×10 / 2

... 11 × 5

... 55 combinations.

Hence, the required answer = 55 , option ( d )

Hope my answer helps!

8 0
3 years ago
What is the slope-intercept form equation of the line that passes through (1, 3) and (3, 7)?
34kurt

Answer:

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Step-by-step explanation:

5 0
3 years ago
I need help with this one too
adelina 88 [10]

Answer:

Y=X+9

Step-by-step explanation:

IN THE ATTACHED FILE

8 0
3 years ago
How do I do this. Please I’m having trouble
horrorfan [7]

The Slope is 3/5, because of the rise over run method

The Y-Intercept is -1, because the point that touches the y-axis is the y-intercept

7 0
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