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2 years ago

Which statement must be true?

Mathematics

1 answer:

ohaa [14]2 years ago

8 0

Answer:

Each distribution has a different mean and a different standard deviation.

Step-by-step explanation:

The mean of a data set is the middle number. So, the number/place in the middle of each graph should be considered.

And from observing these graphs, they are all bell curves. The middle of a bell curve is the mean, and the *steeper the bell curve, the smaller the standard deviation. *

-The orange and blue graphs are barely overlapping, so their middle number of the data set must not be shared. (indicating that the mean must be different).

-The steepness and height of each bell curve is different, indicating that the standard deviation must be different

*{why? : If there are more values/numbers/outcomes that are close to the mean, (which would look like a very tall bell curve), the standard deviation (standard deviation is how spread out the values are from the mean on average) is much smaller. }*

The steeper the bell curve, the smaller the standard deviation.

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Answer:

Base = 10 cm

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Step-by-step explanation:

The formula for the area of a triangle is $area=\frac{1}{2} *b*h$ , where b is the length of the base of the triangle, and h is the length of the height of the triangle.

We know the area is 300, and since the height of the triangle is 6 times its base, we know that $h=6*b$ . We can plug in these values into our formula for the area of a triangle, which gives us the following equation to solve:

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Now that we know the base of the triangle, we can plug its value in to the original formula to solve for the height of the triangle, which gives us the following equation:

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3 years ago

Can you help me simplify this and explain it -----------------------------------------------------------------------------------

Archy [21]

A. Factor 28 + 7g 7(g + 4)

add
28 + 7g

= 7 (g + 4)

B. (12r + 15) – 65 Remove parentheses
12r+15-65

= 12r - 50

C. 24 – (8p – 12)

24 - (8p - 12) = -8p + 36

24 - (8p - 12) -(8p - 12) 8p + 12

= 24-8p+12

Simplify 24-8p+12

Group like terms
-8p+12+24

Add the numbers 12+24=36

Answer is -8p+36

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3 years ago

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Step-by-step explanation:

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