3 years ago

what is the answer of -72 ÷ -6

Mathematics

1 answer:

PtichkaEL [24]3 years ago

4 0

The quotient of negative 72 and negative 6 is equal to 12.

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7/18 divided by 5/6. For a practice buddy

kenny6666 [7]

Answer:

0.46666666666

Step-by-step explanation:

i tried

7 0

3 years ago

Simplify 4^3 • 4^5 <br> a 4^8<br> b 16•15<br> c 4^15<br> d 16^8

user100 [1]

Answer:

4^8

Step-by-step explanation:

keep base (which is 4) and add exponents when multiplying

3 0

3 years ago

which decription best compares the graphs of these two functions? y = -3x + 2 and x- 0, 2, 4 ,6 y- 2, 1, 0, -1

loris [4]

Y=-6 i think this is the answer

8 0

3 years ago

The data below represents the overall miles per gallon (MPG) of 2008 SUVs priced under $30,000.

nevsk [136]

Answer:

99% Confidence interval: (17.9064,19.8136)

Step-by-step explanation:

We are given the following data set:

22,18,19,21,18,19,18,17,20,20,18,17,20,19,20,18,17,18,16,21,18,21

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{415}{22} = 18.86$

Sum of squares of differences = 52.59

$S.D = \sqrt{\frac{52.59}{21}} = 1.58$

99% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 21 and}~\alpha_{0.01} = \pm 2.831$

$18.86 \pm 2.831(\frac{1.58}{\sqrt{22}} ) = 18.86 \pm 0.9536 = (17.9064,19.8136)$

Option A) With 99% confidence, the mean miles per gallon in the population of 2008 SUVs is somewhere in the interval.

4 0

4 years ago

Which data set could be represented by the box plot shown below?

jarptica [38.1K]

Answer:

choice a

Step-by-step explanation:

6 0

3 years ago

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