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2 years ago

Mrs.Feinstein recorded the weight, in pounds, recorded of each of her 8 great-grandchildren. Her data are shown.

Mathematics

1 answer:

Artemon [7]2 years ago

4 0

I think is range because the numbers are underline

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Which statement is true about a dot plot?

natali 33 [55]

Answer:

Step-by-step explanation:

3 0

2 years ago

2x^2+9x+6=0 quadtratic equation

Studentka2010 [4]

Hello from MrBillDoesMath!

Answer:

x = ( -9 + sqrt(33) ) /4

and

x = ( -9 - sqrt(33) ) /4

Discussion:

Using the quadratic formula with a = 2, b = 9 and c = 6 gives

x = ( -b +\- sqrt(b^2-4ac) )/2a

x = ( -9 +\- sqrt(9^2 - 4*2*6)) / (2*2) =>

x = ( -9 +\- sqrt (81- 48)) / 4 =>

x = ( -9 +\- sqrt(33) ) /4

Thank you,

MrB

5 0

2 years ago

Find the coordinates of the image of the point A(3, 9) for a dilation with the scale factor of 2/3

Ierofanga [76]

Answer:

A'(2, 6 )

Step-by-step explanation:

Assuming the dilatation is centred at the origin, then multiply each of the coordinates by $\frac{2}{3}$

A(3, 9 ) → A'( $\frac{2}{3}$ (3), $\frac{2}{3}$ (9) ) → A'(2, 6 )

4 0

2 years ago

Read 2 more answers

What is the variance for this activity? activity a m b t es ef ls lf 7 1 1.5 2 1.50 8 9.50 8 9.50

Lina20 [59]

The variance for this activity is mathematically given as

Var=0.026

<h3>What is the variance for this activity?</h3>

A data set's variance may be seen as a measurement of the spread that exists between the individual integers. When evaluating the asset allocation of a portfolio, investors employ an expression known as the variance equation.

After careful consideration of the table given in the question, we have that

Pessimistic time tp=2

optimistic time to=1

most likely time tm=1.5

Generally, the equation for variance is mathematically given as

$\sigma^2=\frac{tp-to}{6}^2$

Therefore

$\frac{2-1}{6}^2\\\\\sigma^2=1/6^2$

Var=0.026

In conclusion, the variance for this activity

Var=0.026