Answer:
-5+6 3/5= <u>1.6</u>
Step-by-step explanation:
<em>hope that helps!!!!</em>
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Answer:
B
Step-by-step explanation:
x + 2 ≥ 0
x ≥ -2 (x greater than/equal to -2)
Answer:
(a) 27 extension lines
(b) 0.9000
(c) 30.0000
Step-by-step explanation:
Number of representatives=2, number of extension lines=2, average calls each representative can accommodate per hour = 15 calls, arrival rate per hour = 30 calls
(a) 90% of the arrival rate = 0.09 × 30 = 27 calls
To handle 27 calls immediately, 27 extension lines should be used
(b) Probability is given by number of possible outcomes ÷ number of total outcomes
Number of possible outcomes = 27, number of total outcomes = 30
Probability (call will receive busy signal) = 27/30 = 0.9000
(c) For one extension line, numbers of calls to receive busy signal = 30 - 15 = 15.0000 calls
Number of calls to receive busy signal for the current telephone system with two extension lines = 2 × 15.0000 = 30.000 calls
Answer:
Correct choice is D
Step-by-step explanation:
Notion means that you have to consider RAY with initial point C that goes in direction to point D (to the right).
Option A is false, because ray has initial point D and goes in direction to point C (to the left).
Option B is false, because ray has initial point C and goes in direction to point A (to the left).
Option C is false, because ray has initial point E and goes in direction to point C (to the left).
Option D is true, because ray has initial point C and goes in direction to points D and E (to the right).
Answer:
y² = 36x
Step-by-step explanation:
Parabola opens right.
Thus equation is from; y² = 4ax
And focus is at (a, 0)
Since we are given focus at (9, 0),it implies that a = 9
Thus, equation of parabola is;
y² = 4 × 9 × x
y² = 36x