Answer:
B. 45
Step-by-step explanation:
Just a pure guess. I got roasted a lot of times :( so I just guessed
126 groups can be made.
What is Combination?Combinations are selections made by taking some or all of a number of objects, irrespective of their arrangements. The number of combinations of n different things taken r at a time, denoted by
n^C_r = n!/ r!( n-r)!
Suppose we have a set of 6 letters { A,B,C,D,E,F}. In how many ways can we select a group of 3 letters from this set? Suppose we find the number of arrangements of 3 letters possible from those 6 letters. That number would be 6P3
. Consider the permutations that contain the letters A, B, and C. These are 3! = 6 ways, namely ABC, ACB, BAC, BCA, CAB, and CBA.
We calculate combinations using the combinations formula, and by using factorials and in terms of permutations. In general, suppose we have n things available to us, and we want to find the number of ways in which we can select r things out of these n things. We first find the number of all the permutations of these n things taken r at a time. That number would be
nPr.
Given:
n= 9, r=5
n^C_r= 9!/ 5! * 4!
= 9*8*7*6/ 4*3*2
=126
Hence, there are 126 ways.
Learn more about combination here:
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HELP ASAP ! WORK A LOT POINTS!
Answer:
y=2x-8
Step-by-step explanation:
What is the lateral surface area of the triangular pyramid shown? Round to the nearest tenth.
A triangular pyramid. The base has a base of 12 and height of 12. A side has a base of 12 and height of 7.8. The other 2 sides have a base of 10 and height of 8.
[Not drawn to scale]
126.8
173.6
206.8
253.6
Answer:
aasssss
Step-by-step explanation:
aaaxxxxxxxxx
A is the
okndsaxknfj ejfkl jfkj jlk jalkfjkfjkljfklj j
Can someone help please ASAP I need it thank you
Answer:
part a is 8^2+w^2=10^2
part b w = 6
part c 24
Which of the following answer choices would satisfy the inequality below? -2.74 < x < -2.35
Answer: -3pi/4
Step-by-step explanation:
-3pi/4 = -2.35619
-2.35619 is closer to 0 making it greater than -2.74 but less than -2.35 bc -2.35 is closer to 0 than -2.35619 is so.... (the greater the negative number, the less value it has)
-2.74 < -3pi/4 < -2.35
hope this helps ^_^
can someone please help me and write out the answer
Answer:
73.3
Step-by-step explanation:
Answer:
Step-by-step explanation:
39 + 90 + x = 180
129 + x = 180
x = 51
Two angles form a linear pair. The measure of one angle is z and the measure of the other angle is 2.4 times z plus 10∘ 10 ∘ . Find the measure of the smallest and biggest angle
Given:
Two angles form a linear pair.
The measure of one angle is z and the measure of the other angle is 2.4 times z plus 10°.
To find:
The measure of the smallest and biggest angle.
Solution:
Two angles form a linear pair. The measure of one angle is z.
The measure of the other angle is 2.4 times z plus 10°, i.e., [tex]2.4z+10^\circ[/tex].
We know that if two angles form a linear pair then their sum is 180 degrees.
[tex]z+(2.4z+10^\circ)=180^\circ[/tex]
[tex]3.4z=180^\circ -10^\circ[/tex]
[tex]3.4z=170^\circ[/tex]
Divide both sides by 3.4.
[tex]z=\dfrac{170^\circ}{3.4}[/tex]
[tex]z=50^\circ[/tex]
Now, the measure of other angle is:
[tex]2.4z+10^\circ =2.4(50^\circ)+10^\circ[/tex]
[tex]2.4z+10^\circ =120^\circ+10^\circ[/tex]
[tex]2.4z+10^\circ =130^\circ[/tex]
Therefore, the measure of the smaller angle is [tex]50^\circ[/tex] and the measure of the bigger angle is [tex]130^\circ[/tex].
Find the value of Y. Please help. Will give Brainlyest if your correct.
Answer:
Step-by-step explanation:
by intersecting chord theorem, 27*y = 13*17
y=13*17/27=8.185=8.19
Ron randomly pulls a pen out of a box that contains 1 red, 2 black, and 3 blue pens. He does
this 4 times, replacing the pen each time, but pulls out a blue pen only 1 time. Ron concludes
that the observed frequency of pulling a blue pen will eventually be closer to the expected
frequency based on the theoretical probability of pulling a blue pen. Which reasoning best
supports his conclusion?
Is it A, B, C, or D
PLEASE HELP ME :)
Answer: A
Step-by-step explanation:
I did this test before : )
The theoretical probability of pulling a blue pen based on the expected frequency will get closer to 1/2 as the no. of trials increases.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
The first thing is to define each of the probabilities,
Theoretical probability is defined as a proportion that expresses the ways to be successful in the total events of an experiment.
Experimental probability is defined as the proportion of the proposed result for the number of experimental attempts.
Based on the above explanation, the reason that best supports is that; the more the experiment is repeated, the closer the experimental probability gets to the theoretical one, However, as the number of attempts increases, it tends to go more to what theoretically is what would happen.
The more experiments that are done, the more the theoretical attempts trend is marked
Hence, the Theoretical probability of pulling a blue pen based on the expected frequency will get closer to 1/2 as the no. of trials increases.
Learn more about probability here;
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Hey can someone help me it’s mean and median PLEASE HELP ILL GOVE BRAINLYIST
Answer: The mean would be 56 inches and the median would be 54 inches! Yw! :)
Answer:
Mean is 56
Median is 54
Step-by-step explanation:
For the mean add all the numbers and divide by 6.
For the median list the numbers from least to greatest and since there is an even amount of numbers then add the two middle numbers and divide by 2.
Jeff is 6 feet 2 inches tall. Give Jeff's height in inches
Answer:
74 inches
Step-by-step explanation:
1ft = 12 inches
6* 12 = 72
72 + 2 = 74 inches
According to the stem-and-leaf plot above, how many drivers travel below 80 miles hour per hour? A. 2 B. 6 C. 14 D. 5
Answer:
See Explanation
Step-by-step explanation:
Given
The question is incomplete, as the required stem-and-leaf plot is not available. I will answer this question with the attached plot
Required
Drivers that travel below 80 mph
A stem and leaf plot has the following syntax: Stem | Leaves
Take for instance:
7 | 2 3 4 7
The above represents 72, 73, 74 and 77
Using the above illustration, the attached leaf plot can be interpreted as:
60, 61, 61, 65, 66, 66, 67
71, 73, 76, 77, 78
80 81... and so on
The drivers that drive below 80 mph are:
60, 61, 61, 65, 66, 66, 67
71, 73, 76, 77, 78
And the frequency is: 12
Hence, 12 drivers travel below 80 mph (using the attached stem and leaf plot)
What is the slope of the line?
-4x + 7 = 2y - 3
Choose 1 answer
Rewrite the expression as a single logarithm:
log 80 - 3 log 2
Select the correct answer.
Arthur is conducting a study on the preferred study options of students from East County College. He randomly selected 28 students from the college and found that 25% of those surveyed preferred studying abroad. Assuming a 95% confidence level, which statement holds true?
Answer: AS THE SAMPLE SIZE IS TO SMALL, the margin of error cannot be trusted
Step-by-step explanation:
Plato and Epmentum
Could someone please answer this question?
Answer:
The new area will be 1 1/2 of the old area
Step-by-step explanation:
Solve for x.
9 km
12 km
X
Answer:
15km
Step-by-step explanation:
[tex] \rm \mapsto \: {9}^{2} + {12}^{2} = {x}^{2} \\ \rm \mapsto \: {x}^{2} = 81 + 144 \\ \rm \mapsto \: {x }^{2} = 225 \\ \rm \mapsto \: x = \sqrt{225} \\ \rm \mapsto \: x = 15[/tex]
Please help asap will mark brainliest!!!!
Answer:
2,600.00
Step-by-step explanation:
What is a decimal that is equivalent to the fraction
7/100 Enter the answer in the box.
Answer:
0.07
Step-by-step explanation:
Answer:
0.07
Step-by-step explanation:
A fraction is a division problem so when you divide 7 ÷ 100 the 100 will move the decimal two spaces back making it 0.07.
Have a great day!
Jamal will cut a piece of wood that is 4 1/3 feet long into 1/6 foot sections. How many sections will result?
Answer:
26 sections
Step-by-step explanation:
4 1/3 ÷ 1/6 = 26
An airplane flies 285 miles in 5 hours. What is its average speed in miles per hour?
PLEASE HELP ASAP!!!!!!
Answer:
57
Step-by-step explanation:
Speed = Distance / Time
distance = 285
time = 5 hours
285/5 = 57
1 over 2z = 3 over 4. Which of the following equals z in this equation?
3 over 8
2 over 3
11 over 2
22 over 3
Answer:
b
Step-by-step explanation:
Find the equation of the axis of symmetry of the following parabola algebraically.
y=2x^2+16.
Answer:
x = 0
axis of symmbery = -b/2a or x vertex on quadratic equation
0/4=0
x=0
Step-by-step explanation:
-4(-8x + 12y)
Distribute
Answer:
-32x-48y
Step-by-step explanation:
multiply: -4 (8x) - 4 (12y) = -32x-48y
Answer:
32x - 48y
Step-by-step explanation:
when you distribute, -4 has to go to both -8x and 12y
so -4 times -8x = 32x
-4 times 12 = -48y
Final answer: 32x - 48y
pls help omg i will give brainliest
Answer:
The actual height of 1 story is 15 feet.
Step-by-step explanation:
The given scale is
2 inches = 25 ft
We know the 10 story building has a height of 12 inches, but we need the actual height of 1, that is, the height of 1 story in feet.
Let's divide to find the number of inches per story
There are 1.2 inches per story.
Now, we know , let's use the rule of three
Therefore, the actual height of 1 story is 15 feet.
Answer:
15 ft
Step-by-step explanation:
2 inches = 25 ft
12 inches = x ft
2 x 6 = 12
25 x 6 = 150
150 ft = 10 stories
150/10 = 15
Each story = 15ft
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
50% of games is 10 games.
Answer:
20 games
Step-by-step explanation:
The ratio of a pair of corresponding sides in two similar triangles is 5:3. The area of the smaller triangle is 108 in2. What is the area of the larger triangle?
Answer:
The hypotenuse of a right triangle is always the side opposite the right angle. It is the ... The other two sides are called the opposite and adjacent sides. ... functions—sine, cosine, and tangent—which are defined using the words hypotenuse, opposite, and adjacent. ... Side ratios in right triangles as a function of the angles.
Step-by-step explanation:
Help me with this!!!!
Answer:
You didn't show the whole question.
Step-by-step explanation:
A set of two concentric circles is shown below. The area of the shaded portion is
inches squared
Answer:
I'm confused as to what you are asking
You also did not attach any work haha
I cannot answer this
3 1/2 x 1 2/3
Step by step explanation
Answer:
5.83333333333
Step-by-step explanation:
i looked it up
A certain quadrilateral has two pairs of parallel sides. The opposite sides are equal in length. There are also 4 right angles. What is the total length of the shorter pair of sides, if the longer pair measures 16cm each, and the figure has a perimeter of 56cm?
Answer:
12 + 12 = 24
Step-by-step explanation:
P = 2L + 2W
P = 2*16 + 2W
P = 56
56 = 32 + 2W Subtract 32 from both sides
56 - 32 = 2W
24 = 2W Divide by 2
24/2 = 2W/2
12 = W
The answer you want is 2 * 12 = 24