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Katen [24]
3 years ago
10

Is there a situation in which you could not add areas?

Mathematics
1 answer:
andre [41]3 years ago
6 0
It could be sometimes.
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What is the average acceleration of a southbound train that slows down from 15 m/s to 8.6 m/s in 1.2 s?
horrorfan [7]

Answer:

The average acceleration of train is 5.34\ m/s^2

Step-by-step explanation:

We have,

A train that slows down from 15 m/s to 8.6 m/s in 1.2 s. It means that 15 m/s is its initial velocity and 8.6 m/s is its final velocity.

It is required to find the average acceleration of the train.

a=\dfrac{v-u}{t}\\\\a=\dfrac{(8.6-15)\ m/s}{1.2\ s}\\\\a=-5.34\ m/s^2

The average acceleration of train is 5.34\ m/s^2.  Negative signs shows that the train is decelerating.

5 0
3 years ago
How do you find the normal approximation without using the continuity correction?
Dennis_Churaev [7]
Let's say you want to compute the probability \mathbb P(a\le X\le b) where X converges in distribution to Y, and Y follows a normal distribution. The normal approximation (without the continuity correction) basically involves choosing Y such that its mean and variance are the same as those for X.

Example: If X is binomially distributed with n=100 and p=0.1, then X has mean np=10 and variance np(1-p)=9. So you can approximate a probability in terms of X with a probability in terms of Y:

\mathbb P(a\le X\le b)\approx\mathbb P(a\le Y\le b)=\mathbb P\left(\dfrac{a-10}3\le\dfrac{Y-10}3\le\dfrac{b-10}3\right)=\mathbb P(a^*\le Z\le b^*)

where Z follows the standard normal distribution.
8 0
3 years ago
Grant takes an Uber from his hotel to a restaurant. The cost of the Uber is a $2.95 initial charge plus $2.25 per mile. Which eq
Papessa [141]
The answer is Y= 2.25x+2.95
6 0
3 years ago
||2x+1|+6|>=0 plz answer asap
nirvana33 [79]
3x + 6 >=0 that's the equation and yes it would be greater
6 0
3 years ago
Find f'(x) for f(x) = −7x2 + 4x − 10.
Scorpion4ik [409]
The answer is D, none of these
4 0
3 years ago
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