1 is C, since it is anything less than 8, so 7 times 2 is 14 minus 2 is 12.
2 is C, since it is anything less than 8, so 7 times 3 is 21, and 1 minus 21 is -20.
Answer: 400
Step-by-step explanation:
From the question, we see that population proportion (p) = 0.15
Margin of error (m) = 5%
Confidence level = 99%
Level of significance = 100- confidence level = 1%.
The population standard deviation (s) for this data set is
√p(1-p) = √ 0.15 × (1 - 0.15)
√ 0.15 × 0.85 = 0. 1275
Margin of error = critical value × population standard deviation / √n
The critical value (c) for Constructing a 99 % confidence interval for population mean is = 2.58
m = c× √p'(1-p') /√n
We want to make n subject of the formulae, we have that
m = c√p'(1-p') /√n
m×√n = c × √p'(1-p')
√n = c × √p'(1-p') / m
n = c² × {√p'(1-p')}² / m
n = 2.58² × 0.1275/ 0.05²
n = 6.6564 × 0.01625625 / 0.0025
n = 339.47 ~ 400
The answer is option "c, y=0.5(1.5)ˣ".
<span>The formula for growth function is
y = ab˟ if b>1
Otherwise it is decay if 0<b<1
</span>So, according to this definition, c is the correct choice.
Answer:
Step-by-step explanation:
(13 - 3)/(1 + 4) = 10/5= 2
y - 13 = 2(x - 1)
y - 13 = 2x - 2
y = 2x + 11
Answer:
28.9
Step-by-step explanation:
Using cosine, we get the equation cos(21)=x/31. Solving cos(21), we get about 0.933. Then we multiply by 31 to get about 28.9.
