Consider randomly drawing two students without replacement from a class of 40 students in which 3 are left handed. Below is a tree diagram illustrating that the probability of selecting 2 left handed students is 1/260. Calculate the probabilities labeled on the tree diagram
Answers
Answer:
a. 3/40
b. 37/40
c. 2/39
d. 37/39
e. 3/39
h. 36/39
k. 1/260
m. 37/520
n. 37/520
w. 111/130
Step-by-step explanation:
First person:
a. 3/40
b. 37/40
_____
Second person:
left-handed branch of tree diagram: since the first person was left-handed, it means there is one less left-handed person, and one less person for the total
c. 2/39
d. 37/39
not left-handed branch of tree diagram: since the first person wasn't left-handed, there are still 3 left-handed people, and there is one less person for the total.
e. 3/39
h. 36/39
_____
for the final probabilities, just multiply along the tree branches:
k = a × c = 1/260
m = a × d = 37/520
n = b × e = 37/520
w = b × h = 111/130
Related Questions
The height of a cylinder is 4 millimeters.The circumference of its base is 10 pi mm
Answers
[tex]\\ \sf\longmapsto C=10\pi mm[/tex]
[tex]\\ \sf\longmapsto 2\pi r=10\pi mm[/tex]
[tex]\\ \sf\longmapsto 2r=10[/tex]
[tex]\\ \sf\longmapsto r=5mm[/tex]
h=4mm[tex]\\ \sf\longmapsto Volume=V=\pi r^2h[/tex]
[tex]\\ \sf\longmapsto V=\pi (5)^2(4)[/tex]
[tex]\\ \sf\longmapsto V=\pi 25(4)[/tex]
[tex]\\ \sf\longmapsto V=100\pi mm^3[/tex]
volume is 100pi mm³.
What is volume?In mathematics, volume is the space taken by an object.
Here, given that,
The height of a cylinder is 4 millimeters.=h
The circumference of its base is 10 pi mm=2r*pi
So, we get,
r=5
Volume =pi*r²*h
=100pi mm³
Hence volume is 100pi mm³.
To learn more on volume click :
brainly.com/question/1578538
#SPJ2
find the value of x using the triangle
Answers
Answer:
x=13
Step-by-step explanation:
See attached image. If you have any questions, let me know!
In each case use the new theorems to arrange the letters measures from greatest to least
Answers
Answer:
answer is a,b,c
Step-by-step explanation:
What is the probability of choosing an ace from a standard deck of 52 playing ?
Answers
Answer:
48/52
Step-by-step explanation:
The probability of picking up an ace in a 52 deck of cards is 4/52 since there are 4 aces in the deck. The odds of picking up any other card is therefore [tex]52/52 - 4/52 = 48/52.[/tex]
I hope this helps and have a great day!
Pls answer question thx
Answers
There is a total of 53 Yr 11 students. 18 in math 13 in science making 31 students, leaving 22 Year 11 students for english. 37 total students picked english, so that makes 15 the remaning amount which is put into the Yr12 students.
There are 100 students total. 53 of which are Yr 11 students leaving 47 to be Yr12 students.
12 Yr 12 students chose science, 15 Yr 12 kids chose english, leaving 20 Yr12 students to have chosen math.
12+15+20=47 Yr 12 students.
22+18+13=52 Yr 11 students.
15 Yr 12 students chose english.
20 Yr 12 students chose math.
12 Yr 12 students chose science.
There are 47 Yr 12 students total.
22 Yr 11 students chose english.
18 Yr 11 students chose math.
13 Yr 11 students chose science.
There are 53 Yr 11 students.
What is 26-(-35)? Explain your reasoning
Answers
[tex]26 - ( - 35) \\ = 26 + 35 \\ = 61[/tex]
Reasoning :-
- & - together will give you +
Hey there!
GUIDES FOR YOU TO FOLLOW FOR FUTURE PURPOSES.
Guide #1:
• Double [negatives] equals _positive_
• Double [positives] equals _positive_
• 1 [negative] & 1 [positive] equal(s) _negative_
• 1 [positive] & 1 [negative] equal(s) _negative_
Guide #2:
• Positives are on the RIGHT side of the number line
• Negatives are on the LEFT side of the number line
Guide #3:
• Negatives are BELOW 0
• Positives are ABOVE 0
Guide #4:
• When you’re only working with negatives you go down certain spaces because they are below 0
• When you’re only working with positives you too up certain spaces because they are above zero
And etc.
SOLVING FOR YOUR ANSWER
26 - (-35)
= 26 + 35
= 61
Therefore, your answer should be: 61
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
Answer for points I’ll thank it
Answers
Answer:
What is the question?
Step-by-step explanation:
it starts at 10 and stops at 4
Answers
••••••••••••••••••
estimate 1.75 * 12.5
Answers
Answer:
21.875, round as needed.
Step-by-step explanation:
1.75 * 12.5
21.875
You can also round to:
21.88
21.9
22
Just depends on what your teacher is asking
Write the equation of the line that passes through the points (−3,9) and (1,−6).
Answers
Answer:
y=-3.75x-2.25
Step-by-step explanation:
Step 1: Find the slope (m) using the Slope Formula, Y2-Y1/X2-X1
(-6)-(9)/(1)-(-3) = -15/4 = -3.75
Step 2: Find the Y-intercept (b) using the Slope Intercept Formula, y=mx+b
9=-3.75*(-3)+b
9=11.25+b
b=9-11.25
b=-2.25
Step 3: Plug in your slope (m) and Y-intercept (b) values into the Slope Intercept Formula, y=mx+b
y=-3.75x-2.25
Step 4: Plug your X values into the formula, you should get your Y values after solving
y=-3.75(-3)-2.25=11.25-2.25=9 (-3, 9)
y=-3.75(1)-2.25=-3.75-2.25=-6 (1, -6)
Find the missing length to the nearest tenth. Look at the shape.
Answers
A^2+b^2=c^2
16+64=c^2
80=c^2
c= sqrt80
=8.94 approx
Answer: [tex]4\sqrt{5}[/tex]/9.0
Step-by-step explanation:
Simple way: Pythagorean Theorem
[tex]a^{2} +b^{2} =c^{2}[/tex]
C being hypotenuse. A and B are bases that are interchangeable.
In this question, you are missing the hypotenuse.
a= 8, b=4 c=?
[tex]8^{2}+4^{2}=c^{2}[/tex]
[tex]64+16=c^{2}[/tex]
To get rid of [tex]c^{2}[/tex]. Square both sides.
[tex]\sqrt{64+16} =\sqrt{c^{2} }[/tex]
[tex]\sqrt{80}=c[/tex]
Simplify [tex]\sqrt{80}[/tex]
[tex]\sqrt{4*4*5} =4\sqrt{5}[/tex]
or 9.0
2. An architect is reading a plan that is drawn on a scale of 0.75 inches to 1 foot. If the plan says that a room is 12 feet high, how high is the roof in the drawing?
Answers
Answer:
9 Inches
Step-by-step explanation:
1 feet is 0.75 inches
12 feet will be 0.75 * 12 = 9 inches
Therefore,it 9 inches.
Answer:
9 inches
Step-by-step explanation:
12 * 0.75 = 9
Answer: 9
=;
Trick Question!
9 < X^2< 99
Max. - Min. = ???
Answers
Answer:
3 < X < 3√11
-3√11 < X < -3
Step-by-step explanation:
The solution consists out of two intervals, so it is unclear what you want calculated with max - min...
What is the most appropriate method to solve the quadratic equation x²−16=0?
B. By factoring
A. By extracting the square root
C. By completing the square
D. By using the quadratic formula
Answers
x^-16=9
(x-4) (x+4) + 0
x-4=0
x = 4
x+4=0
x = -4
Help WILL NAME BRAINLIEST
Answers
4/5 - 3/8
plz help me might give brainlist
Answers
Answer:
17/40
Step-by-step explanation:
4/5-3/8=32/40-15/40
=17/40
Answer:
Solution:
17/40 Alternative form 0.425
Step-by-step explanation:
Explanation how:
Write all numerators above the least common denominator 40
32-15/40
hope to help
Please help fast
What system of linear inequalities is shown in the graph?
Enter your answers in the boxes.
Answers
Answer:
I'm only able to see a black square instead of any image. Could you resend it?
A skyscraper is a rectangular prism with a height of 398 meters. The bases are squares with sides that are 62 meters. What is the surface area of the skyscraper?
Answers
Answer:
106,392 meters squared.
Step-by-step explanation:
Surface area of a rectangular prism or cuboid is given by:
SA = 2 (lw + wh + lh)
where:
· l is the length of the cuboid.
· w is the width of the cuboid.
· h is the length of the cuboid.
Here we have h = 398 m, l = w = 62 m because this is a square base.
So we get:
SA = 2 ( 398 · 62 + 62² + 398 · 62)
= 2 (24676 + 3844 + 24676)
= 2 · 53196
= 106392 m²
A game you wanted was discounted 45% and now costs $26.29 what did the game cost before the discount
Answers
Answer: I think its $58.4
help yall
Solve and graph the absolute value inequality: 2x + 1) 5.
Answers
Answer:
x=2
Step-by-step explanation:
2x=5-1
2x=4
x=4/2
simplify 4/2 to 2, x=2
Answer:
B is the answer
The inequality is −
3≤x≤2
Step-by-step explanation:
.....HELPPP QUICK MATH TEST
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Answer:
112
Step-by-step explanation:
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Answer: I dont see anything....
Step-by-step explanation:
[tex]8mx^{2}nx^{4}[/tex]
Answers
Step-by-step explanation:
You have $7,000 in your savings account gaining 4% interest per year. If you don't replace the $800 in the savings account
Help please i need this done by tomorrow
Answers
Step-by-step explanation:
here you go I hope my answer is correct goodbye
Answer:
i think you draw it
Step-by-step explanation:
it tells you the answer
Monday's low temperature was – 19" and its high was –7
Answers
Answer:
-19 degrees fahrenheit?? and -7 degrees celcius??
Step-by-step explanation:
jamie is 3 years less than three times Andys age. In five years the sum of their ages will be 59.How old are they now
Answers
Answer:
Andy : 13 years old and
Jamie: 36 years old
Step-by-step explanation:
Andy = x
Jamie = 3x - 3
In 5 years:
(X+5)+(3x-3+5) = 59
4x + 7 = 59
4x = 59 - 7
x = 52/4
x = 13
Find the slope of the line containing the points (-2,-1) and (3,4).
Answers
Answer:
Step-by-step explanation:
[tex]\frac{4-(-1)}{3-(-2)}[/tex] =[tex]\frac{5}{5}[/tex]= 1
Please help me ASAP
Answers
Answer:
x ≤ -17
Step-by-step explanation:
A fishing boat radioed the Coast Guard for a helicopter to pick up a sick crew member. At the time of the message, the boat is 660 kilometers from the helicopter and heading toward it. The average speed of the boat is 30 kilometers per hour, and the average speed of the helicopter is 300 kilometers per hour. How long will it take the helicopter to reach the boat
Answers
How many groups of 24 can we make with 324 foil beads?
Answers
Answer:
13.5
Step-by-step explanation:
324/24=13.5
