Answer:
15x
Step-by-step explanation:
5x-20x+30x=15x
X A padlock's combination is five digits long using the digits o through 9. 0/4 Numbers can repeat within the combination. What is the probability that my combination has all even numbers in it (for example 22222 or 86840)? 0.01 w 0.03 0.05 Х O 0.1 Correct answer 0.03 OFC mooton Monday or Tuesday at 3PM 4PM
Answer:
Before we discuss permutations we are going to have a look at what the words combination means and permutation. A Waldorf salad is a mix of among other things celeriac, walnuts and lettuce. It doesn't matter in what order we add our ingredients but if we have a combination to our padlock that is 4-5-6 then the order is extremely important.
If the order doesn't matter then we have a combination, if the order does matter then we have a permutation. One could say that a permutation is an ordered combination.
The number of permutations of n objects taken r at a time is determined by the following formula:
P(n,r)=n!(n−r)!
Example
A code have 4 digits in a specific order, the digits are between 0-9. How many different permutations are there if one digit may only be used once?
A four digit code could be anything between 0000 to 9999, hence there are 10,000 combinations if every digit could be used more than one time but since we are told in the question that one digit only may be used once it limits our number of combinations. In order to determine the correct number of permutations we simply plug in our values into our formula:
P(n,r)=10!(10−4)!=10⋅9⋅8⋅7⋅6⋅5⋅4⋅3⋅2⋅16⋅5⋅4⋅3⋅2⋅1=5040
In our example the order of the digits were important, if the order didn't matter we would have what is the definition of a combination. The number of combinations of n objects taken r at a time is determined by the following formula:
C(n,r)=n!(n−r)!r!
Four friends are going to sit around a table with 6 chairs. In how many ways could the friends sit?
Step-by-step explanation:
Which step would be used in the proof of the Pythagorean Theorem illustrated below?
a
a
b
o division of areas
o addition of areas
o squaring of areas
multiplication of areas
Answer:
addition of areas
Step-by-step explanation:
can sb pls answer this for me im having a really hard time
Solve.
-7 2/3+ (-5 1/2) +8 3/4= _
6 7/12
-4 2/3
-21 11/12
-4 5/12
a box contains 44table tennis balls having same shape and size.Among them 33 are black and remaining balls are red .two balls are drawn randomly one after another without replacement show the probability of all posible outcomes in a tree diagram.
Answer:
The probability that both balls are red is 5.81%, that one is red and one black is 38.36%, and that both are black 55.81%.
Step-by-step explanation:
Given that a box contains 44 table tennis balls having the same shape and size, and among them 33 are black and remaining balls are red, if two balls are drawn randomly one after another without replacement, to show the probability of all possible outcomes the following calculations must be done:
Red + red:
11/44 + 10/43 = 0.25 x 0.2325 = 0.0581
Red + black:
11/44 + 33/43 = 0.25 x 0.7674 = 0.1918
Black + red:
33/44 + 11/43 = 0.75 x 0.2558 = 0.1918
Black + black:
33/44 + 32/43 = 0.75 x 0.7441 = 0.5581
19.18 x 2 = 38.36
Therefore, the probability that both balls are red is 5.81%, that one is red and one black is 38.36%, and that both are black 55.81%.
Simplify the product. Write the answer in standard form.
(9 − 2t2)(9 + 2t2)
Answer:
-4t^4+81
Step-by-step explanation:
(9-2t^2)(9+2t^2)
−4
A bag contains 3 red marbles, 4 blue, 9 yellow, and 5 green. What is the probability of getting a blue marble?
Answer:
Step-by-step explanation:
15 pts, Solve a right triangle. Please write your answers as it says on the mandate, Thanks!
Hence,
Hence, EG = 5√2And, FG = 5√6Hope it helps you. Please don't mind my rude handwriting. Just pretend it get bent due to a cyclone.
ANSWER ASAP, FIND LENGTH OF MISSING SIDE USING PYTHAGOREOON THEOREM
Answer:
51?
Step-by-step explanation:
I am sorry if it's wrong
19 Which of the following is equivalent to 2(12-6n+9)- Z(n? - En+9)? =1 19 Ο Σ(n- 32 =10 19 Ο Σ(n-32 19 Ο Σ(n+ 3)? =10 19 Ο Σ(n+ 3)?
EDGE ASAP!!!!
Answer:
B if its right i better get brainly list or a follow on ig
Step-by-step explanation:
1nspired_jay
Answer:
Correct answer is A
Step-by-step explanation:
When solving the inital problem you get 1405
Solved problems:
A: 1405
B: 1466
C: 3145
D: 3410
Therefore the correct answer is A
A coin is flipped 160 times. It landed on heads 82 times and tails 78 times. A different coin is flipped 250 times. It landed on heads 115 times and tails 135 times. What is the empirical probability of flipping a heads on the first coin AND flipping a heads on the second coin
Answer:
a. first coin heads: 82/160
b. second coin heads: 115/250
a AND b: a x b = 82/160 x 115/250
Step-by-step explanation:
if not then im confuzzled
Compare the two box plots below. Which of the following statements is not true
Answer:
C.
Step-by-step explanation:
If the surface area of a sphere is 484π, what is the radius?
Answer:
6.21 is the radius I believe
Step-by-step explanation:
Answer:
It would be 11.
Step-by-step explanation:
The equation for the surface area of a sphere is 4πr^2, so lets reduce the answer to get the value of r, the radius.
484π = 4πr^2
Divide by π
484 = 4r^2
Divide by 4
121 = r^2
Lastly, square root each side
11 = r
r is 11.
Can someone help me with this 4 - 3m > -5
Answer: M < -3
.................................................
Step-by-step explanation:
4 - 3m > -5
4 - 3m > (-4 -5)
3m > -9
(3/3)m > (-9/3)
m<-3
I will pick you to be a brainlist and give you 100 points
Answer:
its b
Step-by-step explanation:
Help plz..And No links!! I repeat No links!! If you don’t know the answer don’t saying anything this is important
Answer:
1500
Step-by-step explanation:
7 plus 8 equal 15 and add two zeros at the end
Answer:
659.73
Step-by-step explanation:
A=2πrh+2πr2
f(x)=x^2. What is g(x)?
A. g(x)=-x^2
B. g(x)=x^2-2
C. g(x)=-2x^2
D. g(x)=-x^2-2
Answer:
c g(x)=2x^2
Step-by-step explanation:
hi
Any one know???????????
Mrs. Lee uses 9 cups of water for every
2 cups of rice. How many cups of water
are needed for 5 cups of rice?
Find the indicated measure. Assume that lines which appear to be diameters are diameters.
Answer:
The measure of the angle is 120 degrees
Step-by-step explanation:
Here, we want to find the measure of the angle
Mathematically, the sum of angles at a point ( the center of the circle in this case) is equal to 360 degrees
We have the measures 150 degrees and 90 degrees; by adding this two and subtracting from 360, we will have the measure of the the marked angle
Thus, we have this as;
360 - (150 + 90)
= 360-240
= 120
50 PTS!!!!
PLEASE LOOK AT THE SCREENSHOT AND ANSWER:
Which kind of model best describes this set of data?
Answer:
that is the correct answer
A hotel swimming pool is made up of four semicircles and a square. Find the perimeter of the swimming pool. Round your answer to the nearest tenth. The perimeter is about yards.
Answer:
75.4yd
Step-by-step explanation:
Find the diagram attached
Perimeter of the figure = perimeter of the 4 semicircles
Perimeter of a semicircle = πd/2
d is the diameter of the semicircle = 12yd
Perimeter of a semicircle = 3.14(12)/2
Perimeter of a semicircle = 37.68/2
Perimeter of a semicircle = 18.94yd
Perimeter of the 4 semicircles = 4 * 18.94
Perimeter of the 4 semicircles = 75.36yd
Hence the perimeter of the swimming pool to nearest tenth is 75.4yd
4x + 11y = -3 and -6x = 18y - 6 (substitution method)
Answer:
-3 + -6= -9
because there is answer given
Somone help me with this
Answer:
112
Step-by-step explanation:
V= lwh /3
= 7·6·8 /3
=112
Complete the table using division to figure out the ratios that are equivalent to 40/28.
? ? 40
? ? 28
Answer:
[tex]\frac{40}{28} =\frac{20}{14} =\frac{10}{7}[/tex]
Step-by-step explanation:
[tex]\frac{40}{28} =\frac{20}{14} =\frac{10}{7}[/tex]
first divide both the numerator and the dnominator by 2,
then by 4.
Mrs.Smith stacked 6 cubes on top of one another to make a tower. If the tower is sitting on the floor, how manyof the cubes faces can Mrs.Smith see?
Answer: 25 faces
Step-by-step explanation:
Given
6 cubes are stacked over each other
Mr. Smith wants to count the number of faces
The faces which are in contact with each other are not visible to Mr. smith i.e. there will be 5 cubes with only 4 faces available and only one cube with 5 faces available, that is placed on the top.
No of visible faces
[tex]\Rightarrow 4\times 6+1\quad \quad [\text{6 cubes with 4 faces visible+face of top cube}]\\\Rightarrow 25\ \text{faces}[/tex]
which system of equations is represented by the graph?
Answer:
the second one
Step-by-step explanation:
A canister contains 12 ounces of flour. When the canister is full, it holds 6 times as much flour.
How many ounces of flour does the canister hold when it is full?
Answer:
72
Step-by-step explanation:
Answer:
72
Step-by-step explanation:
Given A canister = 12 ounces of flour. When full = 6 times more.
To find: How many ounces of flour does the canister hold when it is full?
Solution: With the given data, all that is needed to be done in order to find how many ounces can be held by the canister at its full potential, simply multiply the given data:
12 × 6 = 72
Hence, the canister can hold 72 ounces of flour when it is full.
Uncle Eddie asked Mckenna and Lara to order 46 new wheels for 18 skateboards and bicycles in his repair shop. How many bicycles and how many skateboards are in Uncle Eddie’s shop?
Answer:
The Correct Answer is: 15 bicycles and 6 skateboards.
Step-by-step explanation:
I'm sure it is that one. No Doubts.
Can someone help me? And no, I don’t just want the answer. I literally need to know how to do it pls
Answer:
36
Step-by-step explanation:
The angle b is a right angle which is divided into 2. So, each angle would measure 45 degree. (90 / 2 = 45)
tan 45 = 1
\AD\ = 100 - 64 = 36
to find x , remember SOCAHTOA
tan would be used because we have the vale of the opposite angle and we want to find the value of the adjacent angle
Tan 45 = opposite / adjacent
1 = 36/x
x = 36