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3 years ago

Which number is one tenth of the number shown in expanded form below

1 answer:

7 0

The correct answer would be C: 327.525, because if you add up all the numbers you would get 3,275.25, and one tenth of that is 327.525.

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Subtract. Write your answer using scientific notation

denis-greek [22]

Answer: The correct answer is D

8.4282 * 10⁸

Step-by-step explanation:

(8.47 * 10⁸) - ( 4.18 * 10⁶)

= (8.47 * 10⁸) - (0.0418 * 10⁸)

= 8.4282 * 10⁸

Hope this helps

8 0

3 years ago

Determine whether the given value is a statistic or a parameter. A homeowner measured the voltage supplied to his home on one da

Natasha_Volkova [10]

Answer:

C. The given value is a statistic statistic for the year year because the data collected represent a sample sample.

Correct. The value reported is an statistic since represent a SAMPLE of the population of interest.

Step-by-step explanation:

The sample mean obtained was :

$\bar X =\frac{\sum_{i=1}^n X_i}{n}= 144.3$

A. The given value is a parameter parameter for the year year because the data collected represent a population population.

False. The data colected represent a sample of the population of interest, so for this case is not a parameter because we don't have the information about all the population of interest.

B. The given value is a parameter parameter for the year year because the data collected represent a sample sample.

False. First the sample average is not a parameter, and second the population mean is not equal to the sample mean most of the times.

C. The given value is a statistic statistic for the year year because the data collected represent a sample sample.

Correct. The value reported is an statistic since represent a SAMPLE of the population of interest.

D. The given value is a statistic statistic for the year year because the data collected represent a population.

False. If is an statistic can't represent the population, since the parameter represent the population not the statistic.

4 0

3 years ago

Find the quadratic function that has roots of -9 and 3 and a vertex of (-3,-36)

natita [175]

Y=(x+9)(x-3)+c
∵(-3,-36)lies on it.
-36=(-3+9)(-3-3)+c
-36=(-6)(-6)+c
-36=36+c
c=-36-36=-72
y=(x-9)(x+3)-72
y=x^2+3x-9x-27-72
y=x^2-6x-99

6 0

3 years ago

Cameron said that the Y intercept of a quadratic function always tells the maximum value of the function. explain Cameron's erro

Leno4ka [110]

Answer:

We can have two cases.

A quadratic function where the leading coefficient is larger than zero, in this case the arms of the graph will open up, and it will continue forever, so the maximum in this case is infinite.

A quadratic function where the leading coefficient is negative. In this case the arms of the graph will open down, then the maximum of the quadratic function coincides with the vertex of the function.

Where for a generic function:

y(x) = a*x^2 + b*x + c

The vertex is at:

x = -a/2b

and the maximum value is:

y(-a/2b)

4 0

3 years ago

for every 5 coins carmen gets, she gives 2 to her brother frank. if carmen has 9 coins, how many does frank have?

Sphinxa [80]

Carmen has given 6 coins to her brother<span />

3 0

3 years ago