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Archy [21]
3 years ago
8

A contestant on the Cash Show just answer a trivia question correctly. This question had 5 multiple choice answers. It is estima

ted that 10% of the general population know the correct answer to this question. What is the probability that contestant knew the answer rather than guessed it
Mathematics
1 answer:
maw [93]3 years ago
6 0

Answer:

10% probability that contestant knew the answer rather than guessed it

Step-by-step explanation:

Since it is estimated that 10% of the general population know the correct answer to this question, for each contestant, there is a 10% probability that he knew the answer rather than guessing.

So the answer is 10% probability that contestant knew the answer rather than guessed it

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Assume you are rolling two​ dice; the first one is​ red, and the second one is green. Use a systematic listing to determine the
trapecia [35]
Red die:      1,2,3,4
green die:  4,3,2,1

I'm not sure if that's the answer you were looking for, but hopefully that helps.
4 0
3 years ago
Silvio is an air-traffic controller who must calculate the altitude of an incoming plane. He sees the plane at an angle of eleva
Mrac [35]
Since the problem is not telling us the height of Silvio, we are going to assume it is not relevant for our calculations.
Let h the altitude of the incoming plane. We know for our problem that the distance between Silvio and the tower is 3 miles, Also we know that the angle of elevation to the plane is 40°. With this information we can create a triangle as shown in the figure. We need a function that relates the angle of elevation with its opposite and adjacent sides, that function is tangent.
tan \alpha = \frac{opposite.side}{adjacent.side}
tan(40)= \frac{h}{3}
h=3tan(40)
h=2.5miles

We can conclude that we should use the trig function tangent to model this situation; also, we can conclude that the equation that describes this situation is h=3tan(40).

4 0
3 years ago
Determine the number of solutions to a system of equations.
babunello [35]

Step-by-step explanation:

When we compare 2 system of equations (of the form y = mx + c), we take note of the following things:

  • If the values of m and c in both equations are the same, they have infinitely many solutions
  • If only the value of m is the same, they have no solutions
  • If neither is the same, they have 1 solution

Bearing this in mind, we have the following answers:

y = -6x - 2 and y = -6x - 2

=> Infinitely many solutions

y = 0.5x + 5 and y = 0.5x + 1

=> No solutions

y = 0.25x + 2 and y = 5x - 4

=> 1 solution

y = 2x + 3 and y = 4x - 1

=> 1 solution

y = 2x + 5 and y = 2x + 5

=> Infinitely many solutions

y = -x - 3 and y = -x + 3

=> No solutions

7 0
3 years ago
Pleasseeeeeee helpppppp
hammer [34]

Answer:

27 blue balls

Step-by-step explanation:

R : B = 6 : 9

9/6 x 18 = 27

3 0
2 years ago
HELP WITH MY MATH PLS
Vilka [71]

Answer:

a) slope intercept form: y = -5/14 x + 7/2

b) point slope form: y - 1 = 3/2(x - 4)

Step-by-step explanation:

a) Line A: (4,1) and (0, 7/2)

Slope = (1 - 7/2)/(4 - 0)

Slope = - 5/2 * 1/4

Slope = - 5/14

Equation in slope intercept form:

y = -5/14 x + 7/2

b)

(4,1) and (0, -5)

Slope = (1 + 5)/(4 - 0) = 6/4 = 3/2

Equation in point slope form:

y - 1 = 3/2(x - 4)

4 0
4 years ago
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