False. Obtuse is always greater than 90°.
The given in this
problem are:
99% confidence level
N = 61
Mean = 2.0 kg
Standard deviation = 4.8
Z value for a 9%
confidence interval is 2.576
Confidence Interval = mean
± Z s/ sqrt n
= 2.0 ± 2.576(4.8/sqrt 61)
=2.0 ± 2.576 (0.6145770236779006736364371988794)
= 2.0 ± 1.5832
<span>= 0.4168 < x < 3.5832</span>
Answer:
see explanation
Step-by-step explanation:
Given the rule (x, y ) → (x + 5, - y )
Add 5 to the original x- coordinate and make the y- coordinate negative.
(a)
(5, 3 ) → (5 + 5, - 3 ) → (10, - 3 )
(b)
(- 2, 7 ) → (- 2 + 5, - 7 ) → (3, - 7 )