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2 years ago

The rule that refers to grouping is blank property

Mathematics

2 answers:

baherus [9]2 years ago

5 0

Answer:

associative property

Step-by-step explanation:

Grouping like this

a + (b + c) = (a + b) + c

a(bc) = (ab)c

is the associative property

Degger [83]2 years ago

5 0

Answer= Associative Property

Step-by-step explanation:

Affiliate. The word "associative" comes from "associate" or "group"; the Associative Property is the rule that refers to grouping. For addition, the rule is "a + (b + c) = (a + b) + c"; in numbers, this means 2 + (3 + 4) = (2 + 3) + 4.

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Printed circuit cards are placed in a functional test after being populated with semiconductor chips. A lot contains 140 cards,

Ray Of Light [21]

Answer:

The probability that at least 1 defective card is in the sample is $0.9644$

Step-by-step explanation:

Here

N = 140

and n = 20

We will use the below given formula

P(at least 1 defective) = 1 - P( 0 defectives)

P( 0 defectives) =

$= \frac{^{20}C_0 * ^{120}C_{20}}{ ^{140}C_{20}}\\= 0.0356 1-0.0356 \\= 0.9644$

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3 years ago

Rationalise the denominator <br>

Margaret [11]

Step-by-step explanation:

1. $\frac{2 \sqrt{3} }{ \sqrt{5} }$

multiply

$\sqrt{5}$

do both the numerator and denominater

$\frac{2 \sqrt{3} }{ \sqrt{5} } \times \frac{ \sqrt{5} }{ \sqrt{5} } = \frac{2 \sqrt{15} }{ \sqrt{25} } = \frac{2 \sqrt{15} }{5}$

8 0

3 years ago

Can you please answer this question? Thank you

svetlana [45]

<span>-0.99920681013 is the answer </span>

5 0

3 years ago

Simplify (30+20)×50 pls find ans

Alona [7]

Answer:

2500

Step-by-step explanation:

solve brackets first

30+20=50

now multiply 50 × 50 (out of the brackets )

50 × 50 = 2500

5 0

3 years ago

0.007 divided by 10 equivalent to 0.07

allochka39001 [22]

Does 0.007/10=0.07

true or false?

Answer:

NO if you wanted to get 0.07 you would have to multiply not divide.

Step-by-step explanation:

0.007/10=0.0007

8 0

3 years ago