3 years ago

SOMEONE PLEASE HELP ASAP!!! WILL GIVE BRAINLIEST!!!!!!!!!!!!

Mathematics

1 answer:

shtirl [24]3 years ago

5 0

There are actually infinite possibilities,

Here are a few, 9/20, 17/40, 19/40

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A university knows from historical data that 25% of students in an introductory statistics class withdraw before completing the

Vikki [24]

Answer:

13.4%

Step-by-step explanation:

Use binomial probability:

P = nCr p^r q^(n-r)

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1-p).

Here, n = 16, r = 2, p = 0.25, and q = 0.75.

P = ₁₆C₂ (0.25)² (0.75)¹⁶⁻²

P = 120 (0.25)² (0.75)¹⁴

P = 0.134

There is a 13.4% probability that exactly 2 students will withdraw.

8 0

4 years ago

A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by V = x2h

creativ13 [48]

It is given in the question that

A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by

$V = x^2h cm^3$

And the edge length of the base is 12 cm, the edge length of the base is decreasing at a rate of 2 cm/min, the height of the box is 6 cm, and the height is increasing at a rate of 1 cm/min.

Here we differentiate V with respect to t, and we use product rule, that is

$V = 2xh(dx/dt)+ x^2(dh/dt)$

Substituting the given values , we will get

$[tex]dV/dt = 2(12)(6)(-2)+ 12^2(1)$ [/tex]

$dV/dt = -288+144 = -144cm^3/min$

So at that moment, the volume is decreasing at the rate of

$144 cm^3/min$

4 0

3 years ago

Read 2 more answers

25 points help please just give the y intercept and slope

ycow [4]

Answer:

eq 1 yint = 7

eq2 yint= 4

slope for both is 1

7 0

2 years ago

3x^2 + 6 - 2x + 5x - 4x^2 + 9

Over [174]

3x * 3x = 9x

9x + 6 - 2x + 5x - 4x^2 + 9

9x + 6 - 7x - 4x * 4x + 9

9x + 6 - 7x - 16x + 9

9x + -7x = 2x + 6 - 16x + 9

2x + 6 - 16x + 9

2x + (-3) - 16x

-14x + (-3) is the expression?

4 0

4 years ago

Find the sine of ZI. J 21 D I Write your answer in simplified, rationalized form. Do not round.

Kitty [74]

What is ZI? Can you specify? thanks

7 0

3 years ago