Responder:
Área do campo de futebol = 360m²
Explicação passo a passo:
Dado que :
Comprimento = 24 m
Largura = 15 m
Área do campo = comprimento * largura
Área do campo de futebol = 24m * 15m
Área do campo de futebol = 360m²
Answer:
1 one
Step-by-step explanation: just know
Answer:
y = 2x-3
Step-by-step explanation:
y – 1 = 2(x – 2)
Distribute
y-1 =2x-4
Add 1 to each side
y-1+1 = 2x-4+1
y = 2x-3
Step-by-step explanation:
The answer: -1/2
2-3/4-2= -1/2
Answer:
For a sample size of 10, the t-value is about 3.25 (from tables) at a 99% confidence interval.
Explanation:
When the standard deviation for the population is not known, the confidence interval estimate for the population mean is performed with the Student's t-distribution.
The confidence interval for the mean is calculated as

where

= sample mean,
s = sample standard deviation,
t = t-value (provided in tables),
n = sample size.
When reading the t-value, (n-1) is called the df or degrees of freedom.