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Svetlanka [38]
3 years ago
11

Which inequality best represents the following situation: The speed limit in your neighborhood is 30 miles an hour and you are n

ot breaking the law.

Mathematics
1 answer:
andreev551 [17]3 years ago
5 0

Answer:

D

Step-by-step explanation:

You can drive anywhere less than or equal to 30 mph, and it'd be legal

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At a large university, the probability that a student takes calculus and statistics in the same semester is 0.02. The probabilit
Nina [5.8K]

Answer:

The probability that a student is taking calculus given that he or she is taking statistics is = 0.26

Step-by-step explanation:

the probability that a student is taking calculus given that he or she is taking statistics.

Let C = Calculus

S = Statistics

We solve this above Question nursing the formula;

P ( C ∪ S) = P(C) + P ( S ) - P ( C ∩ S)

From the question,

P(C) = 0.10

P( S ) = 0.18

P ( C ∩ S) = 0.02

P ( C ∪ S) = ???

P ( C ∪ S) = 0.10 + 0.18 - 0.02

= 0.28 - 0.02

= 0.26

8 0
4 years ago
If the diameter of a circle is 19.3, what is the circumference?
vlabodo [156]

Answer:

60.6

Step-by-step explanation:

The formula for finding the circumference of a circle is C = 2πr

C is circumference, π is pi (we'll just us 3.14 here), and r is radius.

The radius is found by dividing the diameter in half.

19.3/2=9.65

So the equation should look like this:

C = 2(3.14)(9.65)

C = 60.602

C = 60.6

6 0
4 years ago
A boat traveled 240 miles downstream, then 240 miles back upstream. The trip downstream took 20 hours. The trip back upstream to
kotykmax [81]

Answer:

it takes longer for the boat to get back because it's moving against the current. to see how fast the boat is moving, you divide the amount of miles traveled, by how long it took.

240/20 = 12

in still water the boat travels it's 12 miles per hour

240/ 60 = 4

against the current, the boat travels 4 miles per hour

if you need to find the speed of the current, you need to find the resistance that's going against the boat making it slow down. you do that by doing        12 - 4 = 8 miles per hour is the speed of the current.

Step-by-step explanation:

I hope this helps :)

4 0
3 years ago
the equation 12 x + 5y=20 represents the total revenue during a one-day fundraiser in the equation x represents the number of Yo
alexandr1967 [171]
If you are solving for the question in the picture your answer would be 18. Whiich is letter A.
 
12x+15y=390         Original Equation
12(10)+15y=390      Replace x with 10
120 + 15y= 390       Mutiply 12 by 10
-120        = -120        subtract 120 on both sides to simplfy the equation
15y= 270                 New equation
÷15 = ÷15                 To get the variable alone divide 15 on both sides
y=18                         Your value for y.
3 0
4 years ago
Read 2 more answers
2. Simplify.<br> 10(x + 2)(x – 3)<br> 5(x - 3)(x + 6)
Mariana [72]

Answer:

10(x + 2)(x - 3) \\ 10x + 20 \times x - 3 \\ 10 {x}^{2}  + 17

5(x - 3)( x + 6) \\ 5x - 15 \times x + 6 \\ 5 {x}^{2}  - 9

8 0
3 years ago
Read 2 more answers
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