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4 years ago

Help idk how to do these and its hard

Mathematics

2 answers:

Len [333]4 years ago

7 0

Answer:

$\Large \boxed{\mathrm{D) \ 13}}$

Step-by-step explanation:

$\sf We \ can \ apply \ Pythagorean \ theorem.$

$c=\sqrt{a^2 +b^2 }$

$\sf Plug \ in \ the \ values.$

$c=\sqrt{5^2 +12^2 }$

$\sf Evaluate.$

$c=\sqrt{25+144}$

$c=\sqrt{169}$

$c=13$

Svet_ta [14]4 years ago

6 0

Answer:

Hey there!

12^2+5^2=c^2

144+25=c^2

c=13

Let me know if this helps :)

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3 years ago

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Greeley [361]

Answer:

An experimental study

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3 years ago

A machine has four components, A, B, C, and D, set up in such a manner that all four parts must work for the machine to work pro

olchik [2.2K]

Answer:

0.756

Step-by-step explanation:

It is given that a machine has four components, A, B, C, and D.

$P(A)=P(B)=0.93, P(C)=0.95,P(D)=0.92$

If these components set up in such a manner that all four parts must work for the machine to work properly.

We need to find the probability that the machine works properly. It means we have to find the value of $P(A\cap B\cap C\cap D)$ .

If two events X and Y are independent, then

$P(X\cap Y)=P(X)\times P(Y)$

Assume the probability of one part working does not depend on the functionality of any of the other parts.

$P(A\cap B\cap C\cap D)=P(A)\times P(B)\times P(C)\times P(D)$

Substitute the given values.

$P(A\cap B\cap C\cap D)=0.93\times 0.93\times 0.95\times 0.92$

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Therefore, the probability that the machine works properly is 0.756.

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3 years ago

Help idk how to do these and its hard​

Help idk how to do these and its hard