3 years ago

How to solve special right triangles

Mathematics

1 answer:

MArishka [77]3 years ago

8 0

Right triangle are 90 degrees and the rest is below 50 degrees more likely to be acute

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vovangra [49]

Answer:

$\frac{10}{26} = \frac{5}{13 } \\$

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4 years ago

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A used car dealer has 30 cars and 10 of them are lemons (i.e.~ mechanically faulty used cars), and you don't know which is which

Triss [41]

Answer: Hence, the probability that he will get at least one lemon is 0.70.

Step-by-step explanation:

Since we have given that

Number of cars = 30

Number of lemon cars = 10

Number of other than lemon cars = 30-10 = 20

According to question, he bought 3 cars,

we need to find the probability that you will get at least one lemon.

So, P(X≤1)=1-P(X=0)=1-P(no lemon)

Here, P(no lemon ) is given by

$\dfrac{20}{30}\times \dfrac{20}{30}\times \dfrac{20}{30}=(\dfrac{20}{30})^3$

so, it becomes,

$P(X\geq 1)=1-(\dfrac{20}{30})^3=1-(0.67)^3=0.70$

Hence, the probability that he will get at least one lemon is 0.70.

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3 years ago

What are the missing reasons in the proof?

Grace [21]

3. opposite sides congruent
4. same angle theorem
5. reflexive theorem
6. angle side angle theorem

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4 years ago

217.72 million in scientific notation

zepelin [54]

2.17720 × 10^2 is the answer

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What is 2.5 (x - 1) + 4.5 (-x - 2)

yaroslaw [1]

Answer:

2.5(x-1)+4.5(-x-2)

2.5x-2.5-4.5x-9

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Step-by-step explanation:

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