Answer:
Defending the inference and challenge
Step-by-step explanation:
The inference is correct no one chosen math. Most of them choose english, few of them choose history, and only two choose science.
There are 1000 7th grader, since they did not ask them what was their favorite subject. They could of had 65% for math, 25% for english, 5% for science and history. We do not know.
Hopes this help
Answer:
The answer that you are looking for would be
Try that
He arrives at 9:30 because if you take 8:40 (when dealing with time I like to think of it as a whole number so 8:40 would become 840) then just add 50 minutes to 8:40 (or 840+50 which equals 890 also know as 9:30 because you have to subtract 60 from 90 (because 60 is the limit in time (well technically 59 is)) then add one to 8 like so, which equals 9:30 Enjoy!=)
Answer:
217.7777 m/s
Step-by-step explanation:
1km = 1000 metros
784 km = 784*1000 = 784000 metros
1 hora = 3600 segundos
entonces:
784 kilómetros en una hora = 784km/h = 784000m/3600ses
= 217.7777 m /s
es decir que recorre en cada segundo:
217.7777 metros.
Tarea relacionada:
https://brainly.lat/tarea/16056884
Answer:
99.7%
Step-by-step explanation:
Using the z score formula
z-score is z = (x-μ)/σ
where:
x = raw score
μ = population mean
σ = population standard deviation.
a) for x = raw score = 35
μ = population mean = 44
σ = population standard deviation =3
z = (35 - 44)/3
z = -9/3
z = -3
b) for x = raw score = 53
μ = population mean = 44
σ = population standard deviation =3
z = (53 - 44)/3
z = 9/3
z = 3
We would use the standard normal distribution table to find their probabilities
P(Z<=-3)=0.0013499
P(Z<=+3)=0.99865
So P(-3<=Z<=3)=0.99865 - 0.0013499 = 0.9973
Converting to percentage = 0.9973 × 100 = 99.73%
Therefore, the percentage of auto batteries of this brand that have a life of 35 to 53 months to one decimal place is 99.7%
