All categories

3 years ago

They were asked to 3 Ohigh school students in a health class to write down what they ate last week. Of the30

Mathematics

1 answer:

prohojiy [21]3 years ago

8 0

Answer:

1) P(tacos)= 10/30= 1/3

2) P(Pizzas)=18/30 =3/5

3) P(T AND P)= 5/30= 1/6

4) P(T OR P)= P(T) +P(P) - P(T AND P)

= 10/30 +18/30 -5/30

= 23/30

You might be interested in

The sum of a number and 3 is equal to 5 less than double that number. What is the number?

Ganezh [65]

Answer:

sum of a number 2 plus3 is equal to 5

and less than its double 2×2=4 so the answer is 2

3 0

3 years ago

Read 2 more answers

One month Lisa rented 2 movies and 3 video games for a total of $26. The next month she rented 6 movies and 5 video games for a

xxMikexx [17]

Answer:rental cost for movie $5.50 rental cost for video game $5.00

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A particle moves on the hyperbola xy=18 for time t≥0 seconds. At a certain instant, y=6 and dydt=8. What is x that this instant?

professor190 [17]

Answer:

The value of x at this instant is 3.

Step-by-step explanation:

Let $x\cdot y = 18$ , we get an additional equation by implicit differentiation:

$x\cdot \frac{dy}{dt}+y\cdot \frac{dx}{dt} = 0$ (1)

From the first equation we find that:

$x = \frac{18}{y}$ (2)

By applying (2) in (1), we get the resulting expression:

$\frac{18}{y}\cdot \frac{dy}{dt}+y\cdot \frac{dx}{dt} = 0$ (3)

$y\cdot \frac{dx}{dt}=-\frac{18}{y}\cdot \frac{dy}{dt}$

$\frac{dx}{dt} = -\frac{18}{y^{2}} \cdot \frac{dy}{dt}$

If we know that $y = 6$ and $\frac{dy}{dt} = 8$ , then the first derivative of x in time is:

$\frac{dx}{dt} = -\frac{18}{6^{2}} \cdot (8)$

$\frac{dx}{dt} = -4$

From (1) we determine the value of x at this instant:

$x\cdot \frac{dy}{dt} = -y\cdot \frac{dx}{dt}$

$x = -y\cdot \left(\frac{\frac{dx}{dt} }{\frac{dy}{dt} } \right)$

$x = -6\cdot \left(\frac{-4}{8} \right)$

$x = 3$

The value of x at this instant is 3.

4 0

3 years ago

What are the acceptable diameters for the golf ball

devlian [24]

Answer:

4.2 cm

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Evaluate using distributive property -7/3*5/9+13/3+4/9*-7/3

andre [41]

-7/3*5/9+13/3+4/9*-7/3=2

6 0

3 years ago