2 years ago

Formula for the area of a trapezoid is _____________________

Mathematics

1 answer:

ELEN [110]2 years ago

5 0

The formula for the trapezoid is

A=a+b
2h

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Assume that a procedure yields a binomial distribution with n=3 trials and a probability of success of p=0.300. use a binomial p

NNADVOKAT [17]

$\mathbb P(X=x)=\begin{cases}\dbinom3xp^x(1-p)^{3-x}&\text{for }0\le x\le3\\\\0&\text{otherwise}\end{cases}$

$\implies\mathbb P(X=2)=\dbinom32(0.3)^2(0.7)^1=0.189=18.9\%$

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3 years ago

What is the value of sec in the triangle below? 41 ft 9 ft 40 ft

Juli2301 [7.4K]

Answer:

Step-by-step explanation:

$\sec( \alpha ) = \frac{1}{ \cos( \alpha ) } \\ \\ \sec( \alpha ) = \frac{1}{ \frac{ad}{hip} } \\ \\ \sec( \alpha ) = \frac{hip}{ad} \\ \\ \sec( \alpha ) = \frac{41}{40}$