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UNO [17]
3 years ago
9

Determine whether the situation calls for a survey, an observational study, or an experiment.

Mathematics
1 answer:
IrinaVladis [17]3 years ago
6 0

Answer:

This situation calls for a survey.

Step-by-step explanation:

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The probability that a student at your school takes Drivers Education and Spanish is 87/1000. The probability that a student tak
Gnom [1K]
Let
x---------> <span>The probability that a student takes Spanish 
y-------> </span><span>the probability that a student takes Drivers Education given that the Student is taking Spanish
z-------> </span><span>The probability that a student at school takes Drivers Education and Spanish 

we know that
z=x*y------> solve for y
y=z/x
z=87/1000
x=68/100
substitute
y=(87/1000)/(68/100)-----------> y=87/680

the answer is
87/680</span>
5 0
3 years ago
Read 2 more answers
A point that is between 50 and 60 units away from (7,-2) and state the distance between the points
Inessa05 [86]

Answer:

the distance formula is just the pythagorean theorem, A^2+B^2=C^2, or the distance, C=sqrt(A^2+B^2). In order to find any point between 50 and 60 units away, simply choose a set of coordinates that will satisfy the equation using the given point, (7, -2), where abs(7-x) is A and abs(y-2) is B. for example, let x =60 and y=0, then C=sqrt(53^2+(-2)^2) =52.96 ish. which is between 50 and 60.

Step-by-step explanation:

7 0
3 years ago
A student is asked to find the length of the hypotenuse of a right triangle. The length of one leg is 36 ​centimeters, and the l
DochEvi [55]

Answer:

45.6 cm

Step-by-step explanation:

Let X be the hypotenuse.

(36)^2 + (28)^2 = X^2

X = 45.6 cm

3 0
2 years ago
Solve these simultaneous equations Using the algerbraic method
kherson [118]
The second equation equals: 3X +18y=60 (Both sides times 3)
And then use this new equation minus the first equation, you will get:
Left side: (3X +18y) - (<span>3x+6y)
Right side: 60-30
So 12y=30
Then y=2.5
Take y value into one of the three equations, you will get x=5

or

in another easier way:

Directly minus the second equation from the first one:
</span>(3x+6y) -(<span>X+6y)=10
</span>2X = 10
X = 5
Get Y is easy, Y=2.5
4 0
4 years ago
Please help me due soon
Dmitry [639]

Answer:

The pictures are too small :(

Step-by-step explanation:

7 0
3 years ago
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