La tabla relacionada con la pregunta se puede encontrar en la imagen adjunta a continuación:
Responder:
70%
Explicación paso a paso:
probabilidad de seleccionar aleatoriamente a un participante que haya obtenido entre 71 y 85 puntos:
Probabilidad = resultado requerido / Total de resultados posibles
Resultados posibles totales = Sumando la frecuencia para obtener el número total de estudiantes = (9 + 12 + 12 + 18 + 9) = 60 estudiantes
Resultado requerido:
Clase :
(71 - 75) = frecuencia = 12
(76 - 80) = frecuencia = 12
(81 - 85) = frecuencia = 18
Total = (12 + 12 + 18) = 42 = resultado requerido
Por tanto, P = 42/60 = 0,7 = (0,7 * 100%) = 70%
I think D (sorry if I’m wrong)
Answer:
a) so if you're looking for a then you substitute the a in the problem so the real question would be answered by simply doing this. 3 times (do this first) 6 times 3. so it would end up looking like this if you did it in your head. 6x3=18 then 18x3= 54 so the answer for ten after you did all the math would equal out to be 54.
d) so you're going to substitue the d again, for what it tells you d equals. in this case, d= a negative 2 so, 5 x do this first -2 x 4 = so if you did this in your head you would end up with -2 x 4 = -8 because anything times a negative is turned into a negative. so that is why the answer is -8 for the first part. then you multiply that answer by 5 because we all like the 5 dollar foot longs. so carry that into an answer of - 40. because we all know we want to be younger once we reach 40.
r) 5times -3 equals -15 times 2 would be... ding ding ding 30 because a negative times a negative is a positive. think of negatives this way. when you frown it's your smile upside down. ok so a frown is a negative, if you multiply a negative to a negative it's like turning your frown upside down. so you end up with a positive! ok?! so there. the secrets of life and math.
call me for the rest of the answers... this is too much to write down.
Step-by-step explanation:
Answer:
B. 10 in.
Step-by-step explanation:
When you do length times width times height 10*10*10 equals 1000
10*10=100 and 100*10=1000
Answer:
Step-by-step explanation:
A+C=38,000
8A+5C=257,125
