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Mars2501 [29]
3 years ago
9

A survey of students at a particular college showed that 33% of them prefer the American Heritage Dictionary (as opposed to Webs

ter's or Random House). If 30 students are randomly surveyed, find the probability that exactly 6 of them prefer the American Heritage Dictionary.
Mathematics
1 answer:
vladimir1956 [14]3 years ago
8 0

Answer:

.066 = 6.6 percent chance

Step-by-step explanation:

1 in 5 chance to get 6, so that is .20 multiply .20 and .33 and you get .066

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Hello there!
jok3333 [9.3K]

Answer:

4. dy/dx = -2

8. dy/dx = 1/2 x^(-3/2)

10/ dy/dr = 4 pi r^2

Step-by-step explanation:

4.  y = -2x+7

dy/dx = -2(1)

dy/dx = -2

8.  y = 4 - x^-1/2

 dy/dx =  - (-1/2x^ (-1/2-1)

 dy/dx = 1/2 x^(-3/2)

10.  y = 4/3 pi r^3

dy/dr = 4/3 pi  (3r^2)

dy/dr = 4 pi r^2

7 0
3 years ago
Where does the 6π belong in the Veen diagram?
sveticcg [70]

Answer:

D

Step-by-step explanation:

It is irrational because you cant write it as a fraction

6 0
2 years ago
PLEASE HELP!!!!!!!!
vfiekz [6]

Answer:

about 78 years

Step-by-step explanation:

Population

y =ab^t  where a is the initial population and b is 1+the percent of increase  

    t is in years

y = 2000000(1+.04)^t

y = 2000000(1.04)^t

Food

y = a+bt   where a is the initial population and b is constant increase

    t is in years

b = .5 million = 500000

y = 4000000 +500000t

We need to set these equal and solve for t to determine when food shortage will occur

2000000(1.04)^t= 4000000 +500000t

Using graphing technology, (see attached graph  The y axis is in millions of years), where these two lines intersect is the year where food shortages start.

t≈78 years

8 0
3 years ago
Read 2 more answers
2. En la ciudad de Quito, en la temporada fría, se registran temperaturas que van desde los 5 °C hasta los 18 °C. En la temporad
natulia [17]

Answer:

(See explanation below for further detail/Véase la explicación abajo para mayores detalles)

Step-by-step explanation:

(This exercise is written in Spanish and explanations will be held in such language)

a) Las temperaturas quedan representadas a continuación:

Quito - Temporada Fría

Intervalo

5 ^{\circ}C \leq t \leq 18^{\circ}C (Este intervalo indica si el dato puede pertenecer a la temporada fría)

Conjunto

C = \{\forall t \in \mathbb {R}| 5 \leq t \leq 18\} (Este conjunto acumula todo el registro de las temperaturas de la temporada fría)

Quito - Temporada Cálida

Intervalo

4 ^{\circ}C \leq t \leq 30^{\circ}C (Este intervalo indica si el dato puede pertenecer a la temporada cálida)

Conjunto

H = \{\forall t \in \mathbb {R}| 4 \leq t \leq 30\} (Este conjunto acumula todo el registro de las temperaturas de la temporada cálida)

b) La temperatura de la ciudad de Quito pertenece esencialmente a dos intervalos:

Intervalo de Temporada Fría:

5 ^{\circ}C \leq t \leq 18^{\circ}C

Intervalo de Temporada Cálida:

4 ^{\circ}C \leq t \leq 30^{\circ}C

c) Toda temperatura mayor o igual que 4 °C y menor o igual que 30 °C.

d) Temperaturas mayores o iguales a 5 °C y menores o iguales a 18 °C.

e) Temperaturas mayores o iguales a 4 °C y menores o iguales a 30 °C.

6 0
3 years ago
Four members of a tennis team equally shared 2 granola bars at the end of practice. how much of a granola bar did they get?
Rama09 [41]
4 divided by 2 is 2. So, 1/2 of one bar goes to each player. 
7 0
3 years ago
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