3 years ago

-3(9+2y) need help please

Mathematics

1 answer:

avanturin [10]3 years ago

5 0

Answer:

-27 - 6y

Step-by-step explanation:

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Given the following information about events A, B and C determine which pairs of events, if any, are independent and which are m

kow [346]

Answer:

a. Are B and C independent? NO

b. Are A and C mutually exclusive? NO

c. Are A and B independent? YES

d. Are A and B mutually exclusive? NO

Step-by-step explanation:

Given the data in the question;

P(A|B) = 0.26 P(A) [ A and B are independent ]

P(B|C) = 0 [ B and C are mutually exclusive ]

P(C/A) = 0.26 ≠ P(C)

hence, [A and C are neither independent nor mutually Exclusive]

Therefore;

a. Are B and C independent? NO

b. Are A and C mutually exclusive? NO

c. Are A and B independent? YES

d. Are A and B mutually exclusive? NO

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3 years ago

What is 2.3 repeating as a fraction

NemiM [27]

$2.3 = 2 \frac{3}{100}$

We simply keep 2 as a whole number and to convert into a fraction, we always divide by 100 when it comes to the tenths place in decimals.

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3 years ago

If −x+5y=7 is a true equation, what would be the value of -2(-x+5y)

Alecsey [184]

Answer:

-14

Step-by-step explanation:

Given -x+5y=7

Now we substitute x+5y into -2(-x+5y)

-2(-x+5y) = (-2)(7)

= - 14

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2 years ago

Factor x2 + 9 in the complex numbers.

Marat540 [252]

Answer:

C) (x + 3i)(x - 3i)

Step-by-step explanation:

(x + 3i)(x - 3i)

=x² - (3i)² [(a+b)(a-b)=a²-b²]

=x² - 9i²

=x² - 9(-1) [i²=-1]

= x² + 9

5 0

3 years ago

Read 2 more answers

I really need help with this

marysya [2.9K]

I believe it is the first one

7 0

3 years ago