Ask question

Ask question

All categories

2 years ago

9

In a class of 40 students, 8 are in the drama club and 12 are in the art club. If a student is selected at random, what is the p

robability that the selected student is:

1 answer:

Ede4ka [16]2 years ago

7 0

Answer: The answer is drama club.

a) 8/40 = 1/5

b) 12/40 = 3/10

Step-by-step explanation:

You might be interested in

Subtract these polynomials (3x^2x+4)-(x^2+2x+1)

harina [27]

2x^2+3. the 2x cancel out and the rest is combining like terms

6 0

3 years ago

Read 2 more answers

Someone help me to work this problem please

zhenek [66]

Answer:

m∠3 = 64°

Since angle 2 and 3 seem to be complementary angles, we know that the meaning of complementary angles is to add both angles to 90 degrees.

Subtract 90 by the known value to get the value of ∠3

90 - 26 = 64

3 0

1 year ago

Use 2 unit multipliers to convert 4 square feet to square inches

allochka39001 [22]

Answer:

4 square feet is equal 576 square inches

Step-by-step explanation:

to convert 4 square feet to square inches

Now, We know that 1 feet = 12 inches

∴ $1^{2} \ feet = 12^2 \ inches\\1\ square\ feet= 144 \ square \ inches\\$

Now we need to find 4 square feet

$4 \times 1\ square\ feet= 4\times 144 \ square \ inches\\4 \ square\ feet= 576 \ square \ inches$

5 0

2 years ago

The rectangular coordinates of a point are given. Find the polar coordinates (r,theta) of this point with theta expressed in r

alexandr402 [8]

Answer:}

In polar coordinates P is

P ( 12 ; 2.618 )

Step-by-step explanation:

The point (ectangular coordinates)

P ( -6√3 ; 6 ) P ( x ; y )

Polar coordinates P ( r ; θ )

x = r cos θ

y = r sin θ r > 0 and 0 ≤ θ ≤ 2π

Then

r = √ (x)² + (y)² r = √(36)²*3 +( 36)² r = √144

r = 12 (hypothenuse module always positive)

The point P ( -6√3 ; 6 ) is in second cuadrant between 90° and 180°

angle between r and horizontal axis x is equal to θ

tan α = l.opp/ l.adj. tan θ = y/x tan θ = - 6 /6√3

tan α = - 1/√3

Then α = 180⁰ - 150⁰ = 30⁰ or θ = 150⁰

to express that value in radians we have :

1 π radian = 180⁰ ⇒ 3,1416 radians = 180⁰

x ?? = 150⁰

x = radians

Finally the point is P ( 12 ; 2.618 )

6 0

2 years ago

Who can help me out on this please??

Vera_Pavlovna [14]

Answer:

no

Step-by-step explanation:

4+6 does not equal 12 so there for it is incorrect

8 0

2 years ago