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3 years ago

For a walk-a-thon, a sponsor committed to give you a flat fee of $5 plus $2 for

Mathematics

1 answer:

horrorfan [7]3 years ago

4 0

Answer:

5+2x20

Step-by-step explanation:

5 is the fee plus 2 dollars each mile if u walked 20 miles it would be 2x 20

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4x5:):):):):):):)free

Kruka [31]

Answer:

The answer is 20

Step-by-step explanation:

Can i have brainiest

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3 years ago

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Which three ordered pairs complete the table to give solutions of the equation y = –6x?

Anika [276]

A: <span>(–2, 12), (0,0), and (2, –12)</span>

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4 years ago

The numbers of regular season wins for 10 football teams in a given season are given below. Determine the range, mean, variance,

tensa zangetsu [6.8K]

We have the following data set:

2,7,15,3,12,9,15,8,3,10

The range is the difference between the highest and lowest values in the set, to find the range, order the data set from least to greatest.

2,3,3,7,8,9,10,12,15,15

Then,

$\begin{gathered} \text{Range}=15-2 \\ \text{Range}=13 \end{gathered}$

Mean is represented by the following expression:

$\text{Mean}=\frac{\text{Sum of all data points}}{Number\text{ of data po}ints}$ $\text{Mean}=\frac{84}{10}=8.4$

Population variance formula looks like this:

$\begin{gathered} \sigma^2=\frac{\sum^{}_{}(x-\mu)^2}{N} \\ \text{where,} \\ \sigma^2=\text{population variance} \\ \sum ^{}_{}=addition\text{ of} \\ x=\text{each value} \\ \mu=population\text{ mean} \\ N=\text{ number of values in the population} \end{gathered}$

Then, substituting:

$\begin{gathered} \sigma^2=\frac{(2-14)^2+(3-14)^2+\cdots+(15-14)^2}{10} \\ \sigma^2=20.44 \end{gathered}$

For the standard deviation:

$\begin{gathered} s=\sqrt[]{\frac{\sum ^{}_{}(x-\mu)^2}{N}} \\ s=4.521 \end{gathered}$

5 0

1 year ago

Abc is triangle,right angled at C. If AB = 25cm and AC = 7 cm ,find BC

Sauron [17]

Answer:

14cm

Step-by-step explanation:

times by 2

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2 years ago

(40 POINTS!!!!) find FD

Natasha2012 [34]

Answer:

FD = 25.94

Step-by-step explanation:

13x - 16 = 4x + 11 (Tangents drawn from an external point are equal)

13x - 4x = 11 + 16

9x = 27

x = 3

substituting x in 4x + 11,

4(3) + 11

12 + 11

ΔFED is a right triangle,

FD² = FE² + DE²

FD² = 12² + 23²

FD² = 144 + 529

FD² = 673

FD = 25.94

3 0

3 years ago

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