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Nady [450]
3 years ago
10

Help please. will give brainliest. i think it is b or c.

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
8 0

Answer:

Third option, letter c

Explanation:

3/8 are male, so the chance for 1 year is 3/8

Then for 2 years in a row, the chance decreases, so it is: 3/8.3/8=9/64 or (3/8)^2

Hope you get it!

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35% of best buy customers buy a computer, 25% buy a warranty, and 5% buy a computer and a warranty. Find the probability that a
anastassius [24]

Answer:

.2

Step-by-step explanation:

(.35((.05)).25)

.05/.25 = .2

4 0
3 years ago
A particle moves along the x–axis so that at time t its position is given by x(t) = (t+1)(t–3)3. For what values of t is the vel
rosijanka [135]

I'll assume that's an exponent at the end there:

x(t) = (t+1)(t-3)^3

The first derivative gives the velocity.  The second derivative gives the acceleration; increasing velocity is the same as positive acceleration.  So we want to find when the second derivative is positive.

Let's see if we can use d(uv) = u\, dv + v\, du to avoid multiplying this out.

x'(t) = 3 (t+1)(t-3)^2 + (t-3)^3

That worked; let's do it again:

x''(t) = 3( 2(t+1)(t-3) + (t-3)^2) + 3(t - 3)^2

x''(t) = 3(t-3) ( 2(t+1)  + (t-3) + (t - 3) ) = 3(t-3)(4t-4)=12(t-1)(t-3)

That's a nice parabola.  It's zero or negative for 1 \le t \le 3 so positive everywhere else:

Answer: Increasing velocity when t < 1 or t > 3


4 0
3 years ago
Find the slope of (3,-20), (5,8)
love history [14]

Answer:

14

Step-by-step explanation:

We can use the slope formula

m = (y2-y1)/(x2-x1)

    = ( 8 - -20)/(5 -3)

   = (8+20)/ (2)

   28/2

    14

5 0
4 years ago
Read 2 more answers
Does anyone know how to solve this question?
Eva8 [605]

e

Does anyone know how to solve this questionDoes anyone know how to solve this question

Step-by-step explanation:

Does anyone know how to solve this question

8 0
3 years ago
Mason throws a coin 3 times.
kow [346]

Given:

Mason throws a coin 3 times.

The outcome of each throw is either Heads or Tails.

To find:

The list of all the possible outcomes of the 3 throws.​

Solution:

Let H represents heads and T represents tails.

For each throw we have 2 choices either H or T.

For three throws the total number of possible outcomes is

2^3=8

Now, list the possible outcomes as shown below.

HHH, HHT, HTH, HTT, THH, THT, TTH, TTT

Therefore, the list of 8 possible outcomes is HHH, HHT, HTH, HTT, THH, THT, TTH, TTT.

7 0
3 years ago
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