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bulgar [2K]
3 years ago
11

If the triangles are similar which are true

Mathematics
1 answer:
Len [333]3 years ago
3 0

Answer:

b

Step-by-step explanation:

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Sixty-eight percent of adults in a certain country believe that life on other planets is plausible. You randomly select five adu
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Answer:

Mean = 3.4

Variance = 1.088

Standard deviation = 1.0431

Step-by-step explanation:

P=0.68\\ \\N=5

The mean of a binomial distribution with parameters N (the number of trials) and p (the probability of success for each trial) is m=N\cdot p

Thus,

m=5\cdot 0.68=3.4

The variance of the binomial distribution is s^2=Np(1-p), where s^2​​ is the variance of the binomial distribution, so

s^2=5\cdot 0.68\cdot (1-0.68)=3.4\cdot 0.32=1.088

The standard deviation s is the square root of the variance s^2, so

s=\sqrt{1.088}\approx 1.0431

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2 years ago
Which choice is appropriate simplified form and restriction for the variable (x+3)(x+7)/3x+21
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3 years ago
Graph the image of Q(-8, 2) after a rotation 90° counterclockwise around the origin.
True [87]

Answer:

djfbkthuiyguhfdmc.v

Step-by-step explanation:

7 0
3 years ago
A swimming pool is to be drained. The pool is shaped like a Rectangular prism with length 12m , with 10 m, and depth 3m. Suppose
tiny-mole [99]

Answer:

20 hours

Step-by-step explanation:

first calculate volume:

12x10x3=360

then divide by 18

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So 20 hours in total

6 0
3 years ago
Use set of notation to write the domain and range of the function y=-3x(x+1)^2+3 shown in graph
anygoal [31]

The domain of a function is the set of values of x in which the function can be calculated.

The range of a function is the associated values of the function respect to the domain.

You have the following function:

y=-3(x+1)^2+3

In order to determine the domain and range of the previous function, you consider that the given function is available for any value of x. Then, you have:

dom y: -∞ ≤ x ≤ ∞ : (-∞,∞)

The range of the function can be determine by noticing, on the graph, that the maximum value of the function is y=3 and also you can notice that there is no a limit for negatives values of the function. Then, you have:

ran y: -∞ ≤ y ≤ 3 : (-∞,3]

7 0
10 months ago
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