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Temka [501]
3 years ago
7

The mean monthly gasoline bill for one household is greater than $120. If a hypothesis test is performed, how should you interpr

et a decision that reject the null hypothesis
Mathematics
1 answer:
Hatshy [7]3 years ago
7 0

Answer:

Following are the solution to this question:

Step-by-step explanation:

In the equation for the given question, for enough evidence to substantiate the assertion:

\mu > \ \$ \ 120

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Answer: = 2^{2}

Step-by-step explanation:

First, Combine Like Terms:

= 3x^2 + −5x^2 + 4x^2

=(3x^2+ −5x^2 +  4x^2)

=2x^2

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A particle moves along a straight line. The distance of the particle from the origin at time t is modeled by the equation below.
laiz [17]

Answer:

The value of t that will satisfy the equation is π/6 (which is 30 degrees)

Step-by-step explanation:

The function that models the movement of the particle is given as;

S(t) = 2 sin(t) + 3 cos (t)

Now we want to the value of t between 0 and pi/2 that satisfies the equation;

s(t) = (2+ 3√3)/2 = 1 + 3√3/2

What we do here is simply find that value of t that would ensure that;

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Without any need for rigorous calculations, this value of t can be gotten by inspection.

From our regular trigonometry, we know that the sin of angle 30 is 1/2 and its cos value is √3/2

We can make a substitution for it in this equation.

We obtain the following;

2 sin(30) + 3cos (30) and that is exactly equal to 1 + 3√3/2

Do not forget however that we have a range. And the range in question is between 0 and π/2

Kindly that π/2 in degrees is 90 degrees

So our range of values here is between 0 and 90 degrees.

So to follow the notation in the question, the value within the range that will satisfy the equation is π/6

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Answer:

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Step-by-step explanation:


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