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2 years ago

IS IT 87??????? I JUST WANNA MAKE SURE IM RIGHT!

Mathematics

2 answers:

djverab [1.8K]2 years ago

6 0

Answer: yes or no who knows

Step-by-step explanation:

s2008m [1.1K]2 years ago

3 0

Answer:

Yes, you are correct, it is 87.

Step-by-step explanation:

Since all triangles add up to 180°, 51 + 42 + 87 = 180.

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Read 2 more answers

A certain university has 18 vehicles available for use by faculty and staff. Five of these are vans and 13 are cars. On a partic

Reil [10]

Answer:

$P(E) = 0.278$

$P(F |E) = 0.2353$

$P(E and F) = 0.0654$

Step-by-step explanation:

The number of vehicles available is $N = 18$

The number of vans is k = 5

The number of cars is n = 13

Generally P(E) is mathematically represented as

$P(E) = \frac{k}{N}$

=> $P(E) = \frac{5}{18}$

=> $P(E) = 0.278$

Generally P(F| E) means the probability that the second vehicle assigned is a van given that the first one selected is a van this mathematically calculated as

$P(F |E) = \frac{5 -1}{18-1}$