Their speed of separation will be equal to the sum of their speeds because they are in opposite directions.
Speed of separation = 40 + 50 = 90 miles per hour
Time = distance / speed
Time = 405 / 90
Time = 4.5 hours
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<h3>(1) 18÷(-9)= -2</h3><h3 /><h3>(2) -10÷2= -5</h3><h3 /><h3>(3) -2+(-6)= -2-6= -8</h3><h3 /><h3>(4) -8-4= -12</h3><h3 /><h3>(5) (-2×-12)÷(18÷9)= 24÷2= 12</h3><h3 /><h3>(6) (120-30)÷(-42-3)= 90÷(-45)= -2</h3><h3 /><h3>(7) 1000÷(125×-2)=1000÷(-250)= -4</h3><h3 /><h3>(8) (5-30)÷(8-3)= -25÷5= -5</h3><h3 /><h3>(9) 12÷(4-8)=12÷(-4)= -3</h3><h3 />
please mark this answer as brainlist
Answer:
a. False
b. False
Step-by-step explanation:
a. The experimental probability or relative frequency is based on actual results from an experiment and may differ from the theoretical probability of an event occurring.
This statement is false because, both the experimental and theoretical probability must agree for the probability of the event occurring to the true.
If both do not agree, that means we have two different probabilities for a s ingle event, which cannot be true. So, the statement is false.
b. The Experimental Probability will be almost the same as the Theoretical Probability as the number of trials of an experiment is very small
This statement is also false because, the experimental and theoretical probabilities only agree when the number of trials of an experiment become large. For small number of trials, both the experimental and theoretical probabilities might not agree.
Step-by-step explanation:
Monday item sale = 1/3
Friday item Sale = 1/4
current price 1/3 reduce 1/4 = -0.11
1/3 = 1/4
1/4-1/3
= 4/12
d = 3
The answer is 45/1372.
There are in total 14 cookies (3 chocolate cookies + 5 peanut butter cookies + 6 coconut cookies).
The probability of selecting chocolate cookies is the number of chocolate cookies divided by total number of cookies: 3/14
The probability of selecting peanut butter cookies is the number of peanut butter cookies divided by total number of cookies: 5/14
The probability of selecting coconut cookies is the number of coconut cookies divided by total number of cookies: 3/14
Since replacement occurs each time, that means that the total number of cookies remain the same. To calculate the probability of selecting chocolate, then peanut butter, and then coconut cookies, we will use the multiplication rule which says that if events occur together, their probabilities multiply:
3/14 * 5/14 * 6/14 = (3*5*6)/(14*14*14) = 90/2744 = 45/1372
