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LekaFEV [45]
3 years ago
14

1. If a student's course grade was a B, what is the probability that a randomly selected student did at least 30 minutes of home

work at night? 2. Are the events "did at least 30 minutes of homework l" and "course grade is a B" independent? Explain your answer.​
Mathematics
1 answer:
dlinn [17]3 years ago
5 0

Answer:

Step-by-step explanation:

i. 0.21 over 0.30

ii. Independent

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Simplify <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2e%7D%20R%20%2B%20%5Cfrac%7B1%7D%7B2e%7D%20R" id="TexFormula1" title
AfilCa [17]

Answer:

\frac{Rx + eR}{2ex}

Step-by-step explanation:

You first calculate the product which is \frac{R}{2e} +\frac{1}{2x} R to \frac{R}{2e} + \frac{R}{2x}

Then write all numerators above the least common denominator (2ex)

Now you have your answer.

3 0
3 years ago
It cost $36.75 for three tickets to visit the science center. It cost $51 for 4 tickets to visit the zoo. Which attraction will
Ber [7]
Find the cost for one ticket for the science center.
36.75 ÷ 3 = 12.25
Multiply the product with 12 to get the cost of 12 tickets.
12.25 × 12 = 147
Find the cost of 1 zoo ticket.
51 ÷ 4 = 12.75
Find the cost of 12 tickets by multiplying the product and 12
12.75 × 12 = $153
12 Science Center Tickets cost $147
12 zoo tickets cost $153

The Zoo costs more than the Science Center.

To find out how much more the Zoo costed, subtract 147 from 153.
153 - 147 = 6
The zoo only costs $6 more for 12 students.
So, you're answers are Zoo and $6
8 0
3 years ago
How do I do the increased order of these numbers 8.08,8.09,8.081,8.008
Brums [2.3K]
8.008, 8.08, 8.081, 8.09
8 0
4 years ago
Point P partitions the directed segment from A to B into a 1:3 ratio. Q partitions the directed segment from B to A into a 1:3 r
AnnyKZ [126]
Dividing the line segment AB into ratio 1:3 or 3:1 means dividing the line segment into four equal lengths, as shown in the diagram below.

Point P is the point that divides the line into 1 part and 3 parts, from A.

Point Q is the point that divides the line into 1 part and 3 parts, from B

Hence, P and Q are points on different position

9 0
4 years ago
Read 2 more answers
Simplify each expression.<br>1. 46° =​
Viktor [21]

Answer:

Step-by-step explanation

-7 degrees Celsius

3 0
3 years ago
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