answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tomtit [17]
1 year ago
14

There are 10 boys and 12 girls in the tennis club. The coach wants to select two players to practice first. Which statements are

true? Check all that apply.
There is approximately a 27 percent likelihood that one boy and one girl will be chosen to practice first.
There is approximately a 52 percent likelihood that one boy and one girl will be chosen to practice first.
There is approximately a 19 percent likelihood that two boys will be chosen to practice first.
There is approximately a 19 percent likelihood that two girls will be chosen to practice first.
There is approximately a 29 percent likelihood that two girls will be chosen to practice first.
Mathematics
2 answers:
Sidana [21]1 year ago
6 0
Since there are 22 participants all in all. The possible combinations of the two picked for practice first is, 
                               22C2 = 231
The probability of picking one from each gender will be solved through the calculation below.
                              (10C1)x(12C1) / 231 = 40/77
In percentage, the answer would be approximately 52%. Thus, the answer is the first choice. 
Ludmilka [50]1 year ago
5 0
The second, third, and fifth answer are the correct choices.
One girl and one boy= (12C1*10C1)/22C2= about 52%
Two boys= 10C2/22C2= about 19%
Two girls= 12C2/22C2= about 29%
You might be interested in
why polar coordinates seem better suited for circular-type functions, while the rectangular coordinate system seems better suite
irina1246 [14]
Because "circular-type" functions can be more easily described by the periodic functions \sin and \cos, which are deeply involved in the behavior of "circular-type" functions. Also, using a polar coordinate plane allows you to draw graphs of equations that typically aren't functions.

For example, the unit circle requires two equations to be graphed to fully represent the circle in the rectangular coordinate plane.

x^2+y^2=1\implies y=\pm\sqrt{1-x^2}

On the other hand, in polar coordinates, substituting x=r\cos\theta and y=r\sin\theta reduces this to a constant function,

(r\cos\theta)^2+(r\sin\theta)^2=r^2(\cos^2\theta+\sin^2\theta)=r^2=1\implies r=1 (since by definition, r\ge0)
7 0
1 year ago
Absalom states that 0 is a rational number. Which is a correct explanation for this statement? The number 0 is a whole number, w
lubasha [3.4K]
<span>0 is a natural number, which is part of the rational numbers.</span>
8 0
1 year ago
Read 2 more answers
Mario eats twice as many as Yolanda. If Yolanda eats 6 walnuts every day, how many walnuts does Mario eat in a week?
stepladder [879]

let

x-------> walnuts that Mario eats in a week

y-------> walnuts that Yolanda eats in a week


we know that

x=2y-------> equation 1

y=6*7-------> y=42 walnuts

substitute the value of y in equation 1

so

x=2*42-----> x=84 walnuts


therefore


the answer is

Mario eat in a week 84 walnuts

8 0
2 years ago
A water mill grinds corn to make cornmeal. The water wheel has a radius of 18 feet. The wheel is rotating at 8 revolutions per m
Genrish500 [490]

Answer:

904.9 feet per minute

Step-by-step explanation:

The Angular distance can be calculated using below expression

S= r θ ..............eqn(1)

Where

θ = angular distance travelled

r= Radius= radius of 18 feet

But angular distance can also be expressed as

θ = wt...................eqn(2)

w= angular speed= 8 rev per minute= (8 × 2π)

t= time

Velocity can also be expressed as

V= s/t............eqn(3)

Where

V= velocity

s= distance

t= time

Substitute eqn(2) into eqn(3)

V=( r θ)/ t................eqn(4)

Substitute eqn(2) into eqn(4)

V=( r w t)/ t

V= r w ..............eqn(5)

V= 18×(8 ×2π)

=288π

= 904.9 feet per minute

Hence, the linear speed, in feet per minute, of the water. is 904.9 feet per minute

6 0
1 year ago
Some of the steps in the derivation of the quadratic formula are shown. Step 4: Step 5: Step 6: Step 7: Which best explains why
Otrada [13]

Answer:

The square root of terms separated by addition and subtraction cannot be calculated individually.

Step-by-step explanation:

In order to calculate the square root, we would need a monomial or a factored expression.  We do not have that, so we cannot take the square root.

6 0
1 year ago
Read 2 more answers
Other questions:
  • If h=7 and i=3 find the value of 2h + 2i
    6·2 answers
  • What is the maximum number of times two planes can intersect? What is the minimum number of times they can intersect?
    10·1 answer
  • You own a house and land with an assessed value of $55,580. Every year, you pay a total of $2,834.58 in property taxes. What is
    8·2 answers
  • In triangle △ABC, ∠ABC=90°, BH = altitude
    11·1 answer
  • A bus drives 3 1/2 hours at an average speed of 56mph how far does the bus drive?
    8·1 answer
  • The total load on a certain service is 525 kVA. One-third of this load is from motors; 3/5 is lighting; and 1/15 is from other l
    15·1 answer
  • An open-top bin is to be made from a 15-centimeter by 40-centimeter piece of plastic by removing a square from each corner of th
    10·1 answer
  • A spinner has four equally sized sectors that are numbered 2, 4, 4, and 5. The spinner is spun twice and the product of the outc
    7·1 answer
  • PLEASE HELP ME WITH PRE CAL!!
    10·1 answer
  • Consider the numbers z = StartRoot 2 EndRoot (cos 45o + i sin 45o )and w = 2(cos 90o + i sin 90o).
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!