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Katena32 [7]
3 years ago
9

(6a-3b^2-a) + (b-4+7a^2)Find the sum or difference

Mathematics
1 answer:
morpeh [17]3 years ago
3 0
6a-3b^2-a+b-4+7a^2
goup like terms
7a^2-3b^2+6a-a+b-4
7a^2-3b^+5a-4
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3,000+4,000+1
Three hundred four thousand, one
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Rounded what is 489291 rounded to the nearest hundred
Mrac [35]
The answer is 489,300.

Work:

We go to the tenth's place, which is 9. Since 9 is higher than 5, we need to round the hundredth's place to 3.
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What is 6 thousandths of a meter of a decimal
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You are downsizing. Your new residence will have much less closet space than does your current home. You have 12 pair of long pa
harkovskaia [24]

Answer:

a) there are 7,854,000 number of ways the random selections can be arranged

b) the required probability is 0.0445

Step-by-step explanation:

Given that;

you have 12 pair of long pants, 6 pair of short pant and 17 t-shirt which in total;

Total = 12 + 6 + 17 = 35

a) number of ways a random selection of 9 pair of long pants, 4 pair of short pants and 13 t-shirts can be arranged;

⇒ [ 12   ×    [ 6     ×    [ 17

     9 ]          4 ]           13 ]

= (12! / (9! 3!)) (6! / (4! 2!)) (17! / (13! 4!))

= (220) (15) (2380)

= 7,854,000

Therefore there are 7,854,000 number of ways the random selections can be arranged

b)

Number of ways of selecting 25 item from 35 items;

⇒ [ 35        

    25 ]

=

(35! / (25! 10!) = 183.579,396

now number of ways to select 10 pair of long pants, 3 pairs of short pantts and 12 t-shirt;

⇒ [ 12   ×    [ 6     ×    [ 17

     10 ]         3 ]           12 ]

= (12! / (10! 2!)) (6! / (3! 3!)) (17! / (12! 5!))

= (66) (20) (6188)

= 8,168,160

So, Required probability = 8,168,160 / 183,579,396

= 0.0445

So the required probability is 0.0445

5 0
3 years ago
Line CD contains points A (4, 6) and B (−2, 6). The slope of line CD is (4 points)
lbvjy [14]

Answer:

0

Step-by-step explanation:

To find the slope, we use the formula

m= (y2-y1)/(x2-x1)

   = (6-6)/(-2-4)

   = 0/-6

   =0

8 0
3 years ago
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