Be sure to show your work and solve for n: 25 = n + 8 + 11

A researcher compared the heights and shoe sizes for 50 men, selected at random. The equation shown describes a line of best fit

tester [92]

¡Hola! Espero que si puedes leer esto, estás teniendo un gran día, lamento mucho que no puedas resolver esta pregunta, pero en realidad, ¡yo tampoco! gemelos !! ahora diré algunos números aleatorios para que parezca la respuesta, lo siento mucho de antemano si no obtiene la respuesta real. x multiplicado por y te dará 329, que divides por 3 para obtener tu respuesta. no me escuches, no tengo idea de lo que estoy hablando, pero espero que tengas un día bendecido, Dios los bendiga ♥ ️

3 0

2 years ago

Solve for x if -10x + 67 = 17 A) x=4 B) x= -50 C) x=5 D) x=10

olchik [2.2K]

Solve for x if -10x+67=17 the answer is:
D) x=10

8 0

2 years ago

Read 2 more answers

Find the area of A cylinder has a volume of 175 cubic units and a height of 7 units. The diameter of the cylinder is

damaskus [11]

To find the area of the cylinder we need to find its volume first. Remember that the formula for the volume of a cylinder is $V= \pi r^{2} h$
where:
$V$ is the volume
$r$ is the radius
$h$ is the height
From the question we know that $A=175$ and $h=7$ . Lets replace those values in our volume formula:
$175= \pi r^{2} 7$
Now we can solve for $r$ to find our radius:
$r^{2} = \frac{175}{7 \pi }$
$r^{2} = \frac{25}{ \pi }$
$r= \sqrt{ \frac{25}{ \pi } }$
$r= \frac{5}{ \sqrt{ \pi } }$

Now that we know the radius, we can use the formula for the area of a cylinder $A=2 \pi rh+2 \pi r^{2}$
where:
$A$ is the area
$r$ is the radius
$h$ is the height
We know now that $r= \frac{5}{ \sqrt{ \pi } }$ and $h=7$ , so lets replace those values in our area formula:
$A=2 \pi ( \frac{5}{ \sqrt{ \pi } } )(7)+2 \pi ( \frac{5}{ \sqrt{ \pi } })^{2}$
$A= \frac{70 \pi }{ \sqrt{ \pi } } +50$
$A=174.07$

We can conclude that the area of a cylinder that has a volume of 175 cubic units and a height of 7 units is 174.07 square units.

5 0

2 years ago

The length of a phone conversation is normally distributed with a mean of 4 minutes and a standard deviation of .6 minutes. What

Ivanshal [37]

Answer:

0.04746

Step-by-step explanation:

To answer this one needs to find the area under the standard normal curve to the left of 5 minutes when the mean is 4 minutes and the std. dev. is 0.6 minutes. Either use a table of z-scores or a calculator with probability distribution functions.

In this case I will use my old Texas Instruments TI-83 calculator. I select the normalcdf( function and type in the following arguments: :

normalcdf(-100, 5, 4, 0.6). The result is 0.952. This is the area under the curve to the left of x = 5. But we are interested in finding the probability that a conversation lasts longer than 5 minutes. To find this, subtract 0.952 from 1.000: 0.048. This is the area under the curve to the RIGHT of x = 5.

This 0.048 is closest to the first answer choice: 0.04746.

8 0

2 years ago

A Poker club has 10 members. A president and a vice-president are to be selected. In how many ways can this be done if everyone

Nesterboy [21]

Answer:

90 different ways

Step-by-step explanation:

We have a total of 10 members, and we want to find how many groups of 2 members we can have, where the order of each member in the group of 2 is important, so we have a permutation problem.

To solve this problem, we need to calculate a permutation of 10 choose 2.

The formula for a permutation of n choose p is:

$P(n, p) = n! / (n - p)!$

So we have:

$P(10, 2) = 10! / (10 - 2)!$

$P(10, 2) = 10! / 8!$

$P(10, 2) = 10*9 = 90$

So there are 90 different ways of choosing a president and a vice-president.

7 0

3 years ago