sawyerharper
13.07.2019 •
Mathematics
Bill has 6 markers in a backpack. one of them is purple and one is blue. find the probability bill will reach into the backpack without looking and grab the purple marker and then reach in a second time and grab the blue marker. express your answer as a fraction in simplest form.
Solved
Show answers
More tips
- C Computers and Internet How to Choose an Uninterruptible Power Supply (UPS) for Your Computer: Expert Tips...
- F Food and Cooking The Health Benefits of Flaxseed oil...
- S Style and Beauty Why is Sugaring Better than Waxing for Hair Removal?...
- W Work and Career Where can you learn to be a flight attendant?...
- G Goods and services How to Properly Calculate the Power of Your Air Conditioner?...
- F Food and Cooking Effective Methods to Organize Videos in your iPad According to Content...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
Answers on questions: Mathematics
- M Mathematics Size is 15 ounces 12 ounces 8 ounces Price 3.50 and 2.26 and 0.98 what is the unit rate for each...
- M Mathematics A rabbit runs 1 miles in hour. What was the average rate of speed in miles per hour?...
- M Mathematics Which of the following postulates can be used to prove triangle congruence  select all that apply Help...
- M Mathematics Can Anybody Help Please Find The Indicated Value....
- M Mathematics A bank loaned out $15,000, part of it at the rate of 4% annual interest, and the rest at 8% annual interest. The total interest earned for both loans was $1,020.00....
- M Mathematics 2. Two firefighters are in the middle of a 160-meter building that’s on fire. The ladder moved one firefighter for 50 meters and moved the other firefighter for...
- M Mathematics Solve the equation f(x) = -4x2 – 3x + 2 using the quadratic formula. a. X=-1.17 and x = 0.43 b. x = 0.58 and x = 4.18 C. X = -4,X = -3, x = -2 d. x = 1.12 and x...
- M Mathematics [INFO] The dimensions of a blackboard are 9/10 of a meter by 7/10 of a meter. In a drawing of the blackboard below, 1/2 of an inch represents 2 meters.[QUESTION]What...
- M Mathematics The mean of a population is 74 and the standard deviation is 15. The shape of the population is unknown. Determine the probability of each of the following occurring...
- M Mathematics What is equivalent to 0 = 2x2 - 16x – 18 when completing the square?...
Ответ:
Step-by-step explanation:
His chances of getting the purple one are 1/6
His chances of getting the blue one after drawing the purple one and not replacing are 1/5
The probability of both happening are 1/6 * 1/5 = 1/30
Ответ:
17) just take the root of 100. the text says its square(d).
10m
And checking it gives 10m * 10m = 100m²
18) you need to learn some square numbers to ace this topic. it isn't that complicated, just multiply natural numbers with themselves
like
1² = 1
2² = 4
3² = 9
4² = 16
5² = 25
6² = 36
7² = 49
8² = 64
Now we can see that a) sqrt(55) lies between 7 and 8, and that its value is somewhere in between
7 < a < 8
(ignoring the negative solution to the root oc)
try b, c and d yourself. if you struggle, leave a comment.
I got a problem finding exercises 19 to 21, seriously
22) well...
a * b = 18ft²
6ft * 3ft seems just right. pure guesswork here, seems to be to easy with these numbers.
but we can also write it as a system of two functions
a * b = 18ft²
a = 2b
and then solve it by substituting a in line one with 2b, since a is 2b this is allowed.
2b * b = 18
2 b² = 18
b² = 9
b = 3
(we ignore -3 as a solution bc negative length makes no sense)
plugging that b into line two of the system gives
a = 2 * 3
a = 6
27) rationale can we written as a ratio (a fration)
it almost sounds too simply
rationals are either the root of square numbers, bc they can be solved cleanly, or they got a repeating pattern after the point.
b and c apply to these rules, a and d not
30) lol, I just figured out where the missing exercises are hidden XD
31) just add up the three rectangles (easy part) with the two triangles top and bottom each triangle is just 12m * 16m / 2 (bc it's a triangle, not a rectangle). since you got two triangles you just multiply by two (it's like ignoring the decision. also, the two triangles together would indeed make just a n9ce rectangle).
if you really need the values, leave a comment, but that will not help you in any test.
you can also post your solutions and I'll check them.
32) area of the circle times two
plus area of a rectangle wrapped around the cylinder.
circle are is pi*r² -> pi * (28 in)²
(remember to double for two circles)
rectangle is the circumference of the circle (pi * 28in) times the height of the cylinder
like in 31), feel free two post your results or ask for values if you really struggle to grasp the pattern here.
hope you have a great day and that you understand some more of the topic. you can ace it :)