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3 years ago

Find the mean for the following set of numbers 49 45 51 49 41 34

Mathematics

2 answers:

alexira [117]3 years ago

8 0

Answer:

is -4 ........

liraira [26]3 years ago

5 0

Answer:

44.83

Step-by-step explanation:

The arithmetic mean of a set of numbers is found by summing up the numbers and dividing the sum by the count of the numbers.

Here we have 6 numbers, and their sum is 269. Dividing 269 by 6 results in the mean, which is 44.83.

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What is the circumference of a circle with a radius of 7 feet? 42 3.5 28 14

lubasha [3.4K]

Answer:

44 feet

Step-by-step explanation:

$C = 2\pi \: r= 2 \times \frac{22}{7} \times 7 \\ = 2 \times 22 \\ = 44 \: feet$

8 0

4 years ago

23. ANALYZING EQUATIONS

tamaranim1 [39]

Answer:

9.5 in

Step-by-step explanation:

The receiver is placed at the focus of the parabola at a distance of 1/4a from the vertex. Here that would be 1/(4*(1/38)) or 38/4 inches or 9.5 in

6 0

3 years ago

Help please help me its a hard one

DanielleElmas [232]

Answer:

The sum of a and b is 12.

Step-by-step explanation:

Try drawing this figure. ABCD would actually be a triangle, rather than the common quadrilateral you would expect - considering there are 4 points plotted. Therefore, we would have to find the distance between respective points ( 0, 1 ) and ( 2, 5 ) / ( 2, 5 ) and ( 7, 0 ) / ( 0, 1 ) and ( 7, 0 ). Let's apply the distance formula and calculate the distance between each point, therefore determining the perimeter.

Distance between points ( 0, 1 ) and ( 2, 5 )

= $\sqrt{(2-0)^2+(5-1)^2}$

= $\sqrt{(2)^2+(4)^2}$

= $\sqrt{4+16}$

= $\sqrt{20}$ = $2\sqrt{5}$

Distance between points ( 2, 5 ) and ( 7, 0 )

= $\sqrt{(7-2)^2+(0-5)^2}$

= $\sqrt{5^2+(-5)^2}$

= $\sqrt{25+25}$

= $\sqrt{50}$ = $5\sqrt{2}$

And you can calculate the distance between points ( 0, 1 ) and ( 7, 0 ) to be exactly $5\sqrt{2}$ as well. Therefore, you can say that the perimeter of this triangle is $2(5\sqrt{2}) + 2\sqrt{5}$ = $10\sqrt{2} + 2\sqrt{5}$ . Note that this is similar to the form we are given. Thus, a = 10, and b = 2 - making it's sum 10 + 2 = 12.