3 years ago

What's an interval. I just dont seem to get it. Its too tricky for me

1 answer:

3 0

An interval is a time in which comes between two main things. for example if we are running really fast for 30 seconds and then we walk for 1 minute. that walking is called an interval. after the interval we speed up again.

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Siddarth is putting baseball cards into a book that has 100 pages. Each page holds 9 cards. If Josh has 828 baseball cards, how

Mice21 [21]

Answer: 8

Step-by-step explanation: You would have to divide 828/9. The answer would be 92. You would then subtract this number from 100 pages to get your answer.

7 0

3 years ago

What is the theoretical probability of picking a diamond, not replacing it, and then picking another diamond? Write your answer

BARSIC [14]

You start with a 1/4 chance of picking a diamond.
you remove it from the deck you now have a 12/51 chance of picking a diamond
1/17 is your answer!

Like my answer? Make it a Brainliest! Thanks!

3 0

3 years ago

Find the volume of the solid formed by rotating the region bounded by the given curves about the indicated axis. Y = 1x, y = 1,

Goryan [66]

The disk method will only involve a single integral. I've attached a sketch of the bounded region (in red) and one such disk made by revolving it around the y-axis.

Such a disk has radius x = 1/y and height/thickness ∆y, so that the volume of one such disk is

π (radius) (height) = π (1/y)² ∆y = π/y² ∆y

and the volume of a stack of n such disks is

$\displaystyle V_n = \sum_{i=1}^n \pi {y_i}^2 \Delta y$

where $y_i$ is a point sampled from the interval [1, 5].

As we refine the solid by adding increasingly more, increasingly thinner disks, so that ∆y converges to 0, the sum converges to a definite integral that gives the exact volume V,

$\displaystyle V = \lim_{n\to\infty} V_n = \int_1^5 \frac{\pi}{y^2} \, dy$