If there is a decimal, write it to the nearest tenth (1 decimal place)

Mathematics

2 answers:

olga2289 [7]3 years ago

4 0

Answer:

mean: 3.9

Median: 2.0

mode: 2.0

Range: 12

Step-by-step explanation:

Alex777 [14]3 years ago

3 0

Answer:

Mean= 3.90 (4)

Median= 2

Mode= 2

Range= 4

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Train A moves every 2 minutes, Train B moves

horrorfan [7]

Answer:

in 84 minutes or 1 hr, 24 min

Step-by-step explanation:

you need to find the least common multiple of 2, 3 and 28 which is 84

6 0

2 years ago

The base of a solid in the region bounded by the two parabolas y2 = 8x and x2 = 8y. Cross sections of the solid perpendicular to

Usimov [2.4K]

The two curves intersect at two points, (0, 0) and (8, 8):

$x^2=8y\implies y=\dfrac{x^2}8$

$y^2=\dfrac{x^4}{64}=8x\implies\dfrac{x^4}{64}-8x=0\implies\dfrac{x(x-8)(x^2+8x+64)}{64}=0$

$\implies x=0,x=8\implies y=0,y=8$

The area of a semicircle with diameter $d$ is $\dfrac{\pi d^2}8$ . The diameter of each cross-section is determined by the vertical distance between the two curves for any given value of $x$ between 0 and 8. Over this interval, $y^2=8x\implies y=\sqrt{8x}$ and $\sqrt{8x}>\dfrac{x^2}8$ , so the volume of this solid is given by the integral