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2 years ago

What is 2043.666666 rounded to 2 decimal places

Mathematics

2 answers:

slamgirl [31]2 years ago

6 0

Answer:

$2043.67$

Step-by-step explanation:

Hundredths is at 2 decimal places.

The thousandths place is higher than 5, so add 1 to the hundredths place.

Pepsi [2]2 years ago

4 0

Answer:

2043.67

Step-by-step explanation:

If you’ve ever rounded a number, you would know that if it’s 5 or higher, round it up, and if it’s 4 or lower, round it down. In this case, the second decimal place reads ’6’ which is higher that 5, so we round up. The rest of the numbers stay the same

2043.67

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A set of laptop prices are normally distributed with a mean of 750 dollars and a standard deviation of 60

s344n2d4d5 [400]

Answer:

0.6

Step-by-step explanation:

Given: Mean= $750

Standard deviation= $60

First, lets find out z-score of the interval between $624 and $768.

z score= $\frac{x-mean}{Standard deviation}$

z score= $\frac{624-750}{60}= \frac{-126}{60}$

∴ z score for $624 is -2.1

Now, finding z score for $768

Z score= $\frac{768-750}{60} = \frac{18}{60}$

∴ z score for $768 is 0.3

As per the z score table, the value for -2.1 is 0.0179 and for 0.3 is 0.6179

Now, subtracting the value to get proportion

$0.6179-0.0179= 0.6$

∴ There are 0.6 proportion of laptops are in the range of $624 and $768

7 0

2 years ago

Mohammed buys 31 cups of coffee each week. If a cup of coffee costs d dollars and Mohammed buys approximately the same number of

choli [55]

Mohammed spends 31(d) on coffee each day

5 0

2 years ago

Read 2 more answers

Draw the graphs of the functions y=1.2x+.9 and y=−1.3x+4.4. Using the graph, locate the points of intersection of the two graphs

jasenka [17]

To draw a graph of any linear function you need two points only. We usually use x and y intercepts because these are easiest to work with.
To find x-intercept we set y to be 0. This is also called zero of a function. Let us find x-intercepts for those two functions:
$y=1.2x+0.9$
$y=-1.3x+4.4$
Now we simply set y=0 and solve for x:
$0=1.2x+0.9$
$0=-1.3x+4.4$

$1.2x=-0.9$
$1.3x=4.4$

$x=-0.75$
$x=3.4$
Now we need to find y-intercepts. To do this we simply set x to be zero.
$y=1.2x+0.9$
$y=-1.3x+4.4$

$y=0.9$
$y=4.4$
Graphs of our functions are not defined by these two points.
$y=1.2x+0.9; (0,-0.75),(0.9,0)$
$y=-1.3x+4.4; (0,3.4),(4.4,0)$
To draw a graph you simply draw a line through these two points.
To find intersection we can use a fact that at the point of intersection both functions have the same value. We can write that down mathematically this way:
-1.3x+4.4=1.2x+0.9
Now we need to solve for x. This will give us an x coordinate of the intersection point.
$2.5x=3.5$
$x=1.4$
Now we simply plug in these value of x in any function to obtain y coordinate of the interception point.
$y=1.2x+0.9$
$y=1.2(1.4)+0.9$
$y=2.6$
Our intersection point the following coordinates (1.4,2.6).
I have attached the graph with all the points that we calculated highlighted.

7 0

2 years ago

Find the volume of this cylinder.

const2013 [10]

Volume of a Right circular cylinder=πr²h

Using "Cavaliers principle" or Just pire logic... it can be understood that...

if we were to cut of the base and top of the cylinder such that it will make up to be a right circular cylinder and join the other two pieces on top; We would obtain a Right circular cylinder With The same radius and height as the Given cylinder.

So;

Given. Base area B=81πcm²

also Base area =πr²

=>πr²=81π cm²

=>r=√81=9cm

Also Given;

Height h=3r

=>Height,h=3×9=27cm

So;Volume of cylinder V=πr²h ;(r²=81,h=27)

=>V=(81×27×22)/7

=>V=6867.18cm³ (approx.)

So,Required Volume =6867.18cm³(approx.)

Hope it helps...

Regards,

Leukonov/Olegion.

5 0

2 years ago

Triangle RST was transformed using the rule (x, y) → (–x, –y). The vertices of the triangles are shown. R (1, 1) S (3, 1) T (1,

Feliz [49]

The transformation was a 180° rotation about the origin.
Because, if we take formulas of rotation about the origin:
X1=x*cos£+y*sin£.
Y1=-x*sin£+y*cis£.
And £=180°
Than we recieve
x1=-x
y1=-y

8 0

2 years ago

Read 2 more answers