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3 years ago

112°

Mathematics

2 answers:

Oliga [24]3 years ago

5 0

This is easy:
2f+1 + 53 =112
Minus 54 from both sides
2f = 58
Divide 2 from both sides
F=29
Just remember the exterior angle is the sum of the 2 interior angles.

Troyanec [42]3 years ago

3 0

Answer:

f = 29

Step-by-step explanation:

First look at the angle inside the triangle that has no marker. You can determine this angle using the angle on the opposite side (112).

A straight line will equal 180. So this angle would equal 180 - 112 or 68.

Now you know two of the triangles angles.... 53 and 68.

A triangle's inside angles always add up to 180 degrees.

53 + 68 = 121

The angle that is 2f + 1 must equal 180 - 121 which is 59 degrees.

2f + 1 = 59

2f = 58

f = 29

The three angles inside the triangle are 53, 68 and 59

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3 years ago

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dimulka [17.4K]

Answer:

There is a 50% probability that the household has a dog, given that the household has a cat.

Step-by-step explanation:

We solve this problem building the Venn's diagram of these probabilities.

I am going to say that:

A is the probability that a household has a cat.

B is the probability that a household has a dog.

We have that:

$A = a + (A \cap B)$

In which a is the probability that a household has a cat but not a dog and $A \cap B$ is the probability that a household has both a cat and a dog.

By the same logic, we have that:

$B = b + (A \cap B)$

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$a = 0.2 - (A \cap B)$

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2 years ago

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Elanso [62]

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Step-by-step explanation:

well if we say that x is the first integer

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