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2 years ago

Which of the following are examples of inferential statistics?

Mathematics

1 answer:

alexgriva [62]2 years ago

5 0

The answer is B. Testing random samples of wild animals to decide whether they are healthy

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Please! Help thank you

LUCKY_DIMON [66]

Answer:

i dont know sorry

Step-by-step explanation:

5 0

2 years ago

Consider three equal sources m in a triangular configuration: one at (a/2, 0), one at (−a/2, 0) and one at (0, a). Plot the stre

belka [17]

Answer:its the third one i took the test

Step-by-step explanation:

4 0

2 years ago

(cot^2x - 1)/(csc^2x) = cos2x

Alex787 [66]

Answer:

Step-by-step explanation:

The idea here is to get the left side simplified down so it is the same as the right side. Consequently, there are 3 identities for cos(2x):

$cos(2x)=cos^2x-sin^2x$ ,

$cos(2x)=1-2sin^2x$ , and

$cos(2x)=2cos^2x-1$

We begin by rewriting the left side in terms of sin and cos, since all the identities deal with sines and cosines and no cotangents or cosecants. Rewriting gives you:

$\frac{\frac{cos^2x}{sin^2x} -\frac{sin^2x}{sin^2x} }{\frac{1}{sin^2x} }$

Notice I also wrote the 1 in terms of sin^2(x).

Now we will put the numerator of the bigger fraction over the common denominator:

$\frac{\frac{cos^2x-sin^2x}{sin^2x} }{\frac{1}{sin^2x} }$

The rule is bring up the lower fraction and flip it to multiply, so that will give us:

$\frac{cos^2x-sin^2x}{sin^2x} *\frac{sin^2x}{1}$

And canceling out the sin^2 x leaves us with just

$cos^2x-sin^2x$ which is one of our identities.

5 0

2 years ago

What is the volume of a sphere that has a diameter of 12 cm? (Round to the nearest whole number)

ivann1987 [24]

Answer:

V≈904.78cm³

Step-by-step explanation:

3 0

2 years ago

Which of the following values are zeros for the function below g(x)=(x2+4x-12)(x-3)

Brilliant_brown [7]

Answer:

Step-by-step explanation:

$g(x)=(x^2+4x-12)(x-3)=(x^2+6x-2x-12)(x-3)\\\\=[x(x+6)-2(x+6)](x-3)=(x+6)(x-2)(x-3)\\\\\text{The zeros for}\ g(x)=0:\\\\(x+6)(x-2)(x-3)=0\iff x+6=0\ \vee\ x-2=0\ \vee\ x-3=0\\\\x=-6\ \vee\ x=2\ \vee\ x=3$

4 0

2 years ago