Step-by-step explanation:
from the question:R=x^2/y
where x=3.8*10^5
y=5.9*10^4
it then mean
R=(3.8*10^5)^2/5.9*10^4
=144400000000/59000
=2447457.63
Answer:
Answer : (0.1183 ≤ p ≤ 0.3103)
Step-by-step explanation:
Solution :
Given that,
a) n = 70
x = 15
Point estimate = sample proportion (p)= x / n = 15 / 70 = 0.2143
1 - p = 1 - 0.2143 = 0.7857
At 95% confidence level
α = 1 - 95%
α =1 - 0.95 =0.05
α/2 = 0.025
Zα/2 = Z0.025 = 1.960
Margin of error = E = Zα / 2 * √ (( p * (1 - p )) / n)
= 1.96 (√((0.2143 * 0.7857) / 70)
= 0.096
A 95% confidence interval for population proportion p is ,
P - E ≤ p ≤ P + E
0.2143 - 0.096 ≤p ≤ 0.2143 + 0.096
(0.1183 ≤ p ≤ 0.3103)
Answer:
To find the x-intercept, substitute in
0
for
y
and solve for
x
. To find the y-intercept, substitute in
0
for
x
and solve for
y
.
x-intercept(s):
(
3
,
0
)
y-intercept(s):
(
0
,
2
)
Step-by-step explanation:
3x² - 2 - 12x - 15
Factor.
= 3 ( x + 1 ) ( x - 5 )
