3 years ago

* 3) What is 40ab in expanded form?

1 answer:

4 0

Answer:

$40*a*b$

Step-by-step explanation:

40ab is 40 multiplied by a multiplied by b

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amid [387]

Try this solution:

1. for probability of both televisions work:

$P_{2w}=\frac{C^2_8}{C^2_{10}}=\frac{7*8}{9*10}=0.6(2)$

2. for probability of at least on is defective (it means, the sum = one is defective and two are defective):

$P_{1d}=\frac{C^1_2C^1_8}{C^2_{10}}=\frac{4*8}{9*10}=0.3(5)$ - for P(1defective);

$P_{2d}=\frac{C^2_2}{C^2_{10}}=\frac{2}{9*10}=0.0(2)$ - for P(2defective);

totaly for at least one is defective:

$P_{at \ least \ 1 \ d}=P_{1d}+P_{2d}=\frac{16}{45} +\frac{1}{45} =0.3(7)$

5 0

3 years ago

Diano4ka-milaya [45]

The square root of 343 is 18.520 or 18.52 or also 18

6 0

3 years ago

grin007 [14]

I would say d that what i got.

5 0

3 years ago

geniusboy [140]

Answer: the product of the first one is (x-2)/(2)

Step-by-step explanation:

7 0

3 years ago

AysviL [449]

Answer:

the height is 7.5

Step-by-step explanation:

30 divided by 4 = 7.5

7 0

2 years ago