El Superyate Tetraedro diseñado por Jonathan Shwinge
es un tetraedro regular con aristas de 20 m de longitud.
La distancia r de una esquina al centro de la base (se
muestra en la imagen de abajo) es 11,5 m.
¿Cuál es la altura vertical, h, del tetraedro?
Redondea tu respuesta a la décima de metro más
cercana.

Step-by-step explanation:

13. A school is planning an excursion for all of their students to see the

penguins on Phillip Island. They find a company who can provide

two different types of coaches for the trip: one that holds 34

passengers and one that holds 51 passengers. The coach company

has 8 of the smaller coaches and 4 larger coaches available.

The hire cost $500 for a smaller coach and $700 for a larger coach.

If there are 374 students and teachers going on the trip,

determine the minimum total cost for the coach hire.

points are handed out whenever you post answers.

brainliest answers are handed out by the person asking the question, so whether your answer is picked depends entirely on whether the asker bothers to pick

if you're asking about your rank, it depends on having a certain number of points and a certain number of brainliest answers. for example, at the time of this writing, i have 44338 points out of 15000 needed for the next (nearly triple the requirement! ) but i only have 24 out of 50 required brainliest answers. this number decays, meaning after a certain amount of time (i think about a month), the total number of brainliest answers you've earned doesn't count toward this total. (i've been stuck at the same rank for a long

the lesson to learn here is that you shouldn't worry about points or rank. chances are, no matter how good an answer you may provide, your efforts will go mostly unnoticed unless you focus on the newest/most active questions that get posted.

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950