3 years ago

Check my answers please -

Mathematics

2 answers:

maks197457 [2]3 years ago

8 0

I think the answer could possibly be a

Serga [27]3 years ago

5 0

I can tell you for sure that the answer to the first one is

C) 63,475

and the second is

A) 22,149

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Discuss the validity of the following statement. If the statement is always true, explain why. If not, give a counterexample.

Zigmanuir [339]

Answer:

$P(E \cup F)=P(E)+P(F)$ .

Step-by-step explanation:

Given the statement

If $P(E)+P(F)=P(E \cup F)+P(E \cap F)$ , then E and F are mutually exclusive events.

If two events are mutually exclusive, they have no elements in common. Thus, P(E∩F)=0.

Therefore, the statement is always true as P(E∩F)=0

For mutually exclusive events:

$P(E \cup F)=P(E)+P(F)$ .

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3 years ago

Differentiate between a fixed and movable pulley.<br>

Tamiku [17]

Answer:

Step-by-step explanation:

A fixed pulley consists of a wheel fixed to a shaft and is used in conjunction with a belt to transfer energy to another fixed pulley. A movable pulley consists of a shell, a movable wheel and a rope. Movable pulleys are also know as block and tackle.

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3 years ago

Graph the following.<br> F(x)=4|x+2|-3

liberstina [14]

Answer:

Step-by-step explanation: