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2 years ago

If the the adj side of a triangle is x and the opp side is 9cm and the hyp is 2x what is the value of x?

Mathematics

1 answer:

Lady_Fox [76]2 years ago

5 0

Answer:

$x = 3\sqrt{3}$

Step-by-step explanation:

Let's use the Pythagorean theorem

$x^{2} + 9^{2} = (2x)^{2} \\x^{2} + 81 = 4x^{2} \\3x^{2} = 81\\x^{2} = 27\\x = \sqrt{27} = 3\sqrt{3}$

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Aluminum usage in automobiles has been climbing steadily. As recently as 1990, there were no aluminum-structured passenger cars

lara [203]

Answer:

P(A U B)= 0.08

Step-by-step explanation:

1.Let:

P(A) as the probability that a psiton has an under-fill defect

P(B) as the probability that a pistón has a porosity defect

P(A ∩ B) the probability of having both defectos

Then:

P(A)=0.05

P(B)=0.04

P(A ∩ B)=0.01

2. The probability that a randomly chosen piston has a defect could be calcularse as the union of the probability of choosing a piston with am under-fill defect and one with porosity defect.

That Is P(A U B)

Aplying the probability properties we have:

P(A U B)= P(A) + P(B) -P(A ∩ B)

Replacing the probabilities:

P(A U B)= 0.05+0.04-0.01

P(A U B)= 0.08

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3 years ago

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2 years ago

The Wilsons have triplets and another child who is eleven years old. The sum of the ages of their children is 32. How old are th

Leno4ka [110]

ANSWER:

The triplets will be 7 years each. 21, divided by 7.

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2 years ago

First president u.s.

Reika [66]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Which data set is accurate and precise based on a correct value of 30?

Pepsi [2]

Answer:

Set 1: 30, 35, 32, 30, 29

Step-by-step explanation:

Let's first clarify what is accurate and precise:

Precise is based on how close two or more measured values are to each other. While something is said to be accurate, when the standard value values are close, which in our case is 30.

Therefore, we analyze each set:

Set 1: 30, 35, 32, 30, 29

This set is precise and accurate, since 2 values are 30 and all their values are close to each other.

Set 2: 15, 16, 12, 15, 14

This set is precise, because all of its values are close but not accurate.

Set 3: 19, 30, 78, 43, 30

This set is somewhat accurate because there are 2 values of 30, but it is not precise because its values are separate.

Set 4: 30, 30, 67, 12, 90

It is the same case of Set 3.

Therefore the answer is Set 1.

8 0

3 years ago