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Komok [63]
2 years ago
13

The 154 tenth-graders at Wilson High School were polled on whether they enjoyed their algebra or geometry course more. The resul

ts are shown below. Algebra: 34 female, 33 male Geometry: 40 female, 47 male Use the drop-down menus to answer the questions. What is the probability that a randomly chosen tenth-grader is male? What is the probability that a randomly chosen tenth-grader is male given that the tenth-grader prefers geometry? Are the events “male” and “geometry” independent?
Mathematics
2 answers:
kolbaska11 [484]2 years ago
8 0

Answer:

51.94805...%

Step-by-step explanation:

added up all the #'s =154

added up all the bois =80

divide 80 from 150 =0.51948...

multiply that by 100 =51.94805...

Nat2105 [25]2 years ago
5 0

Answer:

80/154 47/87 no. P male does not equal p (male geometry)

Step-by-step explanation:

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I think it’s c and h
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2 years ago
For which function does f decrease by 15% every time x increases by 1
LenaWriter [7]

Answer:

f(x) = 0.85^{x}

Step-by-step explanation:

The exponential function that decrease by 15% every time x increases by 1 is given by:

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f(x) =  {0.85}^{x}

The second choice is correct.

7 0
2 years ago
The function below shows the number of car owners f(t), in thousands, in a city in different years t: f(t) = 0.25t^2 - 0.5t + 3.
Bingel [31]
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3 0
2 years ago
Read 2 more answers
Annie is creating a stencil for her artwork using a coordinate plane. The beginning of the left edge of the stencil falls at (2,
taurus [48]

Answer:

(A)(12, 9)

Step-by-step explanation:

Given:

The beginning of the left edge of the stencil falls at (2, −1).

A point, say Q on the stencil is at  (4, 1).

Point Q divides the stencil into the ratio 1:4.

We are required to find the end of the stencil.

Mathematically, Point Q divides the stencil internally in the ratio 1:4.

For internal division of a line with beginning point (x_1,y_1) and end point (x_2,y_2) in the ratio m:n, we use the formula

Q(x,y)=(\dfrac{mx_2+nx_1}{m+n} ,\dfrac{my_2+ny_1}{m+n} )

(x_1,y_1)=(2, -1), (x_2,y_2)=?, Q(x,y)=(4,1), m:n=1:4

Therefore:

(4,1)=(\dfrac{1x_2+4*2}{1+4} ,\dfrac{1y_2+4*-1}{1+4} )\\(4,1)=(\dfrac{x_2+8}{5} ,\dfrac{y_2-4}{5} )\\$Therefore:\\\dfrac{x_2+8}{5}=4\\x_2+8=4X5\\x_2=20-8=12\\$Similarly\\\dfrac{y_2-4}{5}=1\\y_2-4=5\\y_2=4+5=9\\(x_2,y_2)=(12,9)

The correct option is A.

6 0
2 years ago
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