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3 years ago

(PLEASE HELP DUE NOW! I DON'T UNDERSTAND!)

Mathematics

1 answer:

Alenkasestr [34]3 years ago

6 0

Answer:

Q3 = 34

Q1 = 24.5

Step-by-step explanation:

Q1 is the middle value in the first half of the data set.

Q3 is the middle value in the second half of the data set.

put the numbers in order

find the median

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John had a roll containing 24 2/3 feet of wrapping paper. He wants to divide it into 11 pieces. First, though, he must cut off 5

tatyana61 [14]

Given

John had a roll containing of wrapping paper

$=24\tfrac{2}{3}$

First, he must cut off 5/6 foot because it was torn.

He wants to divide it into 11 pieces.

To proof

As given in question

John had a roll containing of wrapping paper

$=24\tfrac{2}{3}$

$=\frac{74}{3}$ ( solving the mixed fraction form)

First, though, he must cut off 5/6 foot

than we get

$= \frac{74}{3} - \frac{5}{6}$

Taking the L.C.M of 3 and 6 is 6

$=\frac{148-5}{6}$

$=\frac{143}{6}$

=23.83 feet (approx)

He wants to divide it into 11 piece

length of the each piece

$=\frac{23.83}{11}$

length of the each pieces be 2.16 feet ( approx)

Hence proved

6 0

3 years ago

Read 2 more answers

Find the Parametric equation of the line, which passes through the points: a=(1,2,3), b=(2,0,-4)

skad [1K]

Answer:

(x,y,z) = (1+s, 2-2s,3-7s)

Step-by-step explanation:

Given that a line in three dimension passes through two points a and b

We have equation of the line passing through two points

$(x_1,y_1,z_1) \\(x_2,y_2,z_2)$ is

$\frac{x-x_1}{x_2-x_1} =\frac{y-y_1}{y_2-y_1} =\frac{z-z_1}{z_2-z_1}$

Substitute for the two points and equate to s

$\frac{x-1}{2-1} =\frac{y-2}{0_2} =\frac{z-3}{-4-3}=s$

Simplify to write

$\frac{x-1}{1} =\frac{y-2}{-2} =\frac{z-3}{-7} =s\\x=1+s: y= 2-2s: z=3-7s$

Thus parametric form is

(x,y,z) = (1+s, 2-2s,3-7s)

6 0

3 years ago

What is the range of f(x) = 3x + 9?

Nostrana [21]

Answer:

All real numbers

Step-by-step explanation:

we have

f(x) = 3x +9

The linear function has a range of all real numbers -------> (-∞, ∞)

f(x) can take any real value.

Please see attached image below, for more information

5 0

3 years ago

Read 2 more answers

Suppose you want to represent the desert temperature in degrees Fahrenheit instead. How would you transform the function C(t) to

FrozenT [24]

Answer:

(1c times 9/5) +32

That is the way to figure out °1c as 33.8°

Hope it helped

6 0

2 years ago

The ordered pairs (2, -21) and (5, -45) are solutions to which of the following equations.

Sveta_85 [38]

Answer:

y=-8x-5

Step-by-step explanation:

The solution to this problem is obtained by evaluating the given points in every possible functions.

Lets start by Evaluating (2,-21)

y=-8x-5 at evaluation leads to> -21=-8(2)-5=-21. An equality, which means that y=-8x+5 is a line containing the point (2,-21).

Now lest continue with the other point (5, -45), which leads to

-45= -8*5 -5= 45, an equality, which means that y=-8x+5 also contains the point (5,-45)

If we decide to try with the others function using for instance the point (5, -45) we will get the following:

y=-8x+5 at evaluation leads to> -5= -8(5) +5=-35, a contradiction, this line is not a solution.

y=8x-5 at evaluation leads to -45= 8 * 5 -5=35, a contradiction, this line is not a solution

y=8x+5 at evaluation leads to -45= 8*5 + 5= 45, a contradiction, this line is not a solution.

5 0

3 years ago