Answer:
C.) -5 and 5
Step-by-step explanation:
Plug in -5 & 5 separately for x.
Plug in -5 for in the equation. Remember to follow PEMDAS. First solve for power, then multiplication.
2(-5)² = 50
2(25) = 50
50 = 50 (True).
Plug in 5 into the equation for x. Remember to follow PEMDAS. First solve for power, then multiplication.
2(5)² = 50
2(25) = 50
50 = 50 (True).
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Answer:
Probability of choosing number = 0.9192
Step-by-step explanation:
Given:
New mean = 87.8
Mean = 85
Standard deviation = 14
Number picked = 49
Find:
Probability of choosing number
Computation:
Probability of choosing number = [New mean - Mean] / [Standard deviation / √Number picked]
Probability of choosing number <= [(87.8-85)]/[(14/7)]
Probability of choosing number = 0.9192
Answer:
a = 0.
Step-by-step explanation:
2(a - 4) = 2a - 8 + 4a
2a - 8 = 2a - 8 + 4a
2a - 2a - 4a = -8 + 8
-4a = 0
a = 0.
Answer:
14
Step-by-step explanation: