Answer:
I think the answer should be floor 4 but since floor 5 is the closest I would go for that.
Step-by-step explanation:
there are 5 members initially in the group if every member has to bring 2 members and those 2 members have to also bring in 2 other members that mean 4 people that are brought in by one person and if there are 5 people in a group that means 20 people are brought in one floor if 20 * 4 is 80 plus the initial 5 members so they only need 4 floors to have at least 80 members.
Help me pleaseee !!!!
Answer:
22) a. Supplemental angles
b. 43.5 degrees and 136.5 degrees
Step-by-step explanation:
22) a) If 2 angles are on a straight line then they are supplemental angles. Supplemental angles add up to 180 degrees
b) (x+1) + (3x+9) = 180
Combine like terms
4x + 10 = 180
4x = 170
divide both sides by 4
x = 42.5
so the 2 angles are 1) 42.5 + 1 = 43.5 and 2) 3(42.5) + 9= 136.5
i will mark brainliest
Taylor needs to put 8 hats in each box.
She has 64 hats. Which equation can
help you find how many boxes Taylor
can fill?
Hi,
64 ÷ 8 = x
X= the number of boxes
Hope I could help~ have a good day/night :]
ILL GIVE BRAINELST
Which graph represents the direct variation equation y=2 x?
Answer:
its the 2 one because i am smart
Is it 1/10, 10, 7 or 5/72 please help thank you?
What is the volume of a cylinder if ,
height = 21 cm
radius = 24 cm
and the formula is
[tex]\pi \: {r}^{2} h[/tex]
We are given that :
Height of cylinder = 21 cmRadius of cylinder = 24 cmTherefore, Volume :
➙ V = πr²h
➙ V = ( 22 / 7 ) × ( 24 )² × ( 21 )
➙ V = ( 22 / 7 ) × 576 × 21
➙ V = ( 22 × 576 × 21 ) / 7
➙ V = 266112 / 7
➙ V = 38016
ㅤㅤ ㅤㅤ~Hence, the volume of given cylinder is 38,016 cm³.
⳨ⲟⲅⲙⳙⳑⲇ ⳙ⳽ⲉ∂ :The volume of cylinder is it's density which tells us the amount by which it can be filled by any material or the the amount of material which can be immersed in it.
The Formula for volume of cylinder is given by :
ㅤㅤㅤㅤㅤ➙ πr²h
Answer:
The answer is 38016 cm³
Step-by-step explanation:
Given;Height (h) = 21 cmRadius (r) = 24 cmTo Find;The Volume of cylinderFormula;V = πr²hNow,
V = πr²h
V = 22/7 × (24)² × 21 cm
V = 22 × 24 × 24 × 3 cm
V = 38016 cm³
Thus, The volume of cylinder is 38016 cm³
-TheUnknownScientist 72
Find the mean, median, mode, and range for this set of numbers:
14, 12, 7, 13, 6, 8
Answer:
In explanation
Step-by-step explanation:
Your mean=10
Median=10
Your mode is all of these numbers because none of them was in here more than once.
Your range would be 8 because range is highest number subtract lowest number so 14 is highest and 6 is lowest whats 14-6=8
HELP PLEASEEEEE!!!!!
please answer correctly. Thank you
Answer:
wag po lagi umasa sa brainly
Solve the following system of equations graphically on the set of axes below.
y = x - 5
y = -2x – 2
Answer:
this will answer how to graph the equations
Step-by-step explanation:
Sociology graduates, upon entering the workforce, earn a mean salary of
$25,000 with a standard deviation of $5,000. Assume that the distribution of salaries is Normal.
a) What is the probability that a randomly chosen salary exceeds $35,000?
b) What is the probability that a randomly chosen salary is less than $22,500?
c) What is the probability that a randomly chosen salary lies between
$25,000 and $37,500?
d) Find the 15th percentile of the sociology salaries.
e) Find the two salaries that are the cutoff values for the middle 60% of
salaries.
Using the normal distribution, it is found that:
a) There is a 0.0228 = 2.28% probability that a randomly chosen salary exceeds $35,000.
b) There is a 0.3085 = 30.85% probability that a randomly chosen salary is less than $22,500.
c) There is a 0.4938 = 49.38% probability that a randomly chosen salary lies between $25,000 and $37,500.
d) The 15th percentile of the sociology salaries is of $19,825.
e) The salaries are $20,800 and $29,200.
Normal Probability DistributionIn a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.In this problem:
The mean is of [tex]\mu = 25000[/tex].The standard deviation is of [tex]\sigma = 5000[/tex].Item a:
The probability is 1 subtracted by the p-value of Z when X = 35000, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{35000 - 25000}{5000}[/tex]
[tex]Z = 2[/tex]
[tex]Z = 2[/tex] has a p-value of 0.9772.
1 - 0.9772 = 0.0228.
There is a 0.0228 = 2.28% probability that a randomly chosen salary exceeds $35,000.
Item b:
The probability is the p-value of Z when X = 22500, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{22500 - 25000}{5000}[/tex]
[tex]Z = -0.5[/tex]
[tex]Z = -0.5[/tex] has a p-value of 0.3085.
There is a 0.3085 = 30.85% probability that a randomly chosen salary is less than $22,500.
Item c:
This probability is the p-value of Z when X = 37500 subtracted by the p-value of Z when X = 25000, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{37500 - 25000}{5000}[/tex]
[tex]Z = 2.5[/tex]
[tex]Z = 2.5[/tex] has a p-value of 0.9938.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{25000 - 25000}{5000}[/tex]
[tex]Z = 0[/tex]
[tex]Z = 0[/tex] has a p-value of 0.5.
0.9938 - 0.5 = 0.4938
There is a 0.4938 = 49.38% probability that a randomly chosen salary lies between $25,000 and $37,500.
Item d:
This is X when Z has a p-value of 0.15, so X when Z = -1.035.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]-1.035 = \frac{X - 25000}{5000}[/tex]
[tex]X - 25000 = -1.035(5000)[/tex]
[tex]X = 19825[/tex]
The 15th percentile of the sociology salaries is of $19,825.
Item e:
Due to the symmetry of the normal distribution, it is the 20th percentile and the 80th percentile, that is, X when Z = -0.84 and X when Z = 0.84.
20th percentile:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]-0.84 = \frac{X - 25000}{5000}[/tex]
[tex]X - 25000 = -0.84(5000)[/tex]
[tex]X = 20800[/tex]
80th percentile:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]0.84 = \frac{X - 25000}{5000}[/tex]
[tex]X - 25000 = 0.84(5000)[/tex]
[tex]X = 29200[/tex]
The salaries are $20,800 and $29,200.
More can be learned about the normal distribution at https://brainly.com/question/24663213
Can you someone please help me with these 2 question
ASSP
1) The Richter scale is used for measuring the magnitude of an earthquake. The Richter magnitude M is given by the model
M=0.67 log (0.37E)+1.46
where E is the energy in kilowatt hours released by the earthquake. Suppose an earthquake releases 10,500,000,000 kilowatt hours of energy. What is the earthquake’s magnitude to the nearest tenth?
The Richter scale is used for measuring the magnitude of an earthquake. The Richter magnitude M is given by the model
M=0.67 log (0.37E)+1.46
where E is the energy in kilowatt hours released by the earthquake. Suppose an earthquake releases 10,500,000,000 kilowatt hours of energy. What is the earthquake’s magnitude to the nearest tenth?
7.88
7.24
6.02
5.34
2) The Richter magnitude M is given by the model LaTeX: M=\log\left(\frac{I}{I_0}\right)\:\:where LaTeX: I is the intensity of the earthquake in 100 km from the epicenter and LaTeX: I_0 is the smallest seismic activity that can be measured or LaTeX: M=\log\left(Intensity\right)\:\:. A recent earthquake measured 6.2 on the Richter scale. How many times more intense was this earthquake than an earthquake that measured 5.3 on the Richter scale?
7.9 times more intense
0.9 times more intense
1.5 times more intense
6.3 times more intense
The intensity of the earthquake is an illustration of functions
The earthquake's magnitude is 7.88The earthquake is 0.9 times more than the earthquake that measured 5.3How to determine the magnitudeThe function is given as:
[tex]M=0.67 \log(0.37E)+1.46[/tex]
When the earthquake releases 10,500,000,000, we have:
[tex]M=0.67 \log(0.37*10500000000)+1.46[/tex]
Evaluate
[tex]M=7.8848919855[/tex]
Approximate
[tex]M=7.88[/tex]
Hence, the earthquake's magnitude is 7.88
Also, we have:
Earthquake 1 = 6.2
Earthquake 2 = 5.3
Calculate the difference (d)
[tex]d = 6.2-5.3[/tex]
[tex]d = 0.9[/tex]
Hence, the earthquake is 0.9 times more than the earthquake that measured 5.3
Read more about functions at:
https://brainly.com/question/1513353
What numbers do i put in what box
Answer:
And I also glue a board at the bottom. So I can lift if I want my number one. And I could have these as a stand-up. In the piece I made some little cupcakes that I'm going to put inside.
Step-by-step explanation:
And put 1, 3 5 7 9 0 in box
The bakery’s expenses and receipts will both total $_____ after ___ hours
PLEASE HELP ♡
Expenses and receipts will total $2800 after 200 hours.
==============================================================
Explanation:
x = number of hours
Ron spends $11 an hour for operating costs. He spends 11x dollars on top of the $600 he spent on the equipment. The cost expression is 11x+600
On the flip side, Ron earns (on average) $14 an hour from the receipts or revenue. Overall, he earns 14x dollars.
Often in business applications, the owner is curious when s/he will break even. This is the point where the profit is 0 dollars, ie when cost = revenue.
So we'll set the two expressions equal to one another and solve for x.
cost = revenue
11x+600 = 14x
600 = 14x-11x
600 = 3x
600/3 = x
200 = x
x = 200
At the 200 hour mark is when Ron is likely to break even.
This x value leads to:
cost = 11x+600 = 11*200+600 = 2200+600 = 2800 dollarsrevenue = 14x = 14*200 = 2800 dollarsWe get the same cost for each expression, helping to confirm that x = 200 is correct.
The bakery's expenses and receipts will total $2800 after 200 hours.
In a large population of college students 20% of the students have experienced feelings of math anxiety. If you take a random sample of 10 students from this population, the probability that exactly 2 students have experienced math anxiety is: ___________
a .3020
b .2634
c .2013
d .5 e 1
Answer:
In a large population of college students 20% of the students have experienced feelings of math anxiety. If you take a random sample of 10 students from this population, the probability that exactly 2 students have experienced math anxiety is:
Step-by-step explanation:
a .3020
b .2634
c .2013
d .5 e 1 the answers is A
Question 4 of 13
if v = (-2,5) and V2 = (4,-3), then the angle between the two vectors is
Round your answer to two decimal places.
please i need help asap
Answer:
148.67
Step-by-step explanation:
Angle between two vectors is equal to
Inverse cosine of their vectors dot product/ their magnitudes multiplied.
[tex]x = \cos {}^{ - 1} ( \frac{v \times v_{2} }{ |v| |v _{2} | } )[/tex]
Let first, find the dot product
[tex] < - 2,5 > \times < 4, - 3 > = - 8 - 15 = - 23[/tex]
Next we find magnitudes
[tex] - 2 {}^{2} + {5}^{2} = x {}^{2} [/tex]
[tex]29 = {x}^{2} [/tex]
[tex]x = \sqrt{29} [/tex]
[tex] {4}^{2} + {3}^{2} = {x}^{2} [/tex]
[tex]25 = {x}^{2} [/tex]
[tex]x = 5[/tex]
So the we are now,
[tex] \cos {}^{ - 1} ( \frac{ - 23}{ 5\sqrt{29}} ) [/tex]
We then get
[tex]148.67[/tex]
can someone answer this for me please
Answer:
36 Seconds
Step-by-step explanation:
3 x 12 equals 36
4 x 9 equals 36
what we do is find a least common multiple for both the numbers
hope this helps, if it does, can i have brainliest?
What is 136 divided by 19 as a decimal
Answer:
7.157894736842105263
Step-by-step explanation:
(calculator)
Use the graph or table to find the equation that represents the relationship.
to get the equation of any straight line we only need two points off of it.
1st one
well, we have four points on the table, let's use a couple from it hmmm say (10 , -25) and (13 , -34)
[tex](\stackrel{x_1}{10}~,~\stackrel{y_1}{-25})\qquad (\stackrel{x_2}{13}~,~\stackrel{y_2}{-34}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-34}-\stackrel{y1}{(-25)}}}{\underset{run} {\underset{x_2}{13}-\underset{x_1}{10}}}\implies \cfrac{-34+25}{3}\implies \cfrac{-9}{3}\implies -3[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-25)}=\stackrel{m}{-3}(x-\stackrel{x_1}{10}) \\\\\\ y+25=-3x+30\implies y=-3x+5[/tex]
4th one
well, from the picture itself we already have a couple of points we can use hmmm (0 , -4) and (5 , 0)
[tex](\stackrel{x_1}{0}~,~\stackrel{y_1}{-4})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{0}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{0}-\stackrel{y1}{(-4)}}}{\underset{run} {\underset{x_2}{5}-\underset{x_1}{0}}}\implies \cfrac{0+4}{5}\implies \cfrac{4}{5}[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-4)}=\stackrel{m}{\cfrac{4}{5}}(x-\stackrel{x_1}{0}) \\\\\\ y+4=\cfrac{4}{5}x\implies y=\cfrac{4}{5}x-4[/tex]
Step-by-step explanation:
(5,-10)(10,-25) is
y=-3x+5
(-7,-11)(7,3) is
y= x -4
(0.5,0)(0,-1) is
y = 2x-1
Divide (x3 - 2x² + 6x - 8) by (x - 2)
-
How can I (x3 - 2x² + 6x - 8) by (x - 2)
Answer:
x^2 +6 +(4/(x -2))
Step-by-step explanation:
Polynomial long division works for this. The operations are performed in much the same way as for numerical long division.
During the week, the daily low temperatures were 52°F, 45°F, 51°F, 45°F, and 48°F. If Saturday’s low temperature of 51°F is added, which statement about the data set would be true?
A. The mean would decrease.
B. The median would decrease.
C. The mode would increase.
D. The mode would decrease.
Answer:
C
Step-by-step explanation:
The mode is how many numbers are the same and if you add another 51 degrees, it would increase.
Complete the table of ratios.
17. Mr. Morgan drives 130 miles every
2 hours.
18. A
01
Answer: I can answer 17 for you.
65/1, 130/2, 195/3
Step-by-step explanation:
so if it is 130 miles in 2 hours, you divide 130 by 2, which gives you 65
then you multiply 65 by 2, 3, 4, etc., until your table is complete
Simplify the expression:
1b+2c=3d
Answer:
b=3d-2c
Step-by-step explanation:
Multiply b by 1.
Multiply b by 1.b+2c=3d
Multiply b by 1.b+2c=3dSubtract 2c from both sides of the equation.
Multiply b by 1.b+2c=3dSubtract 2c from both sides of the equation.b=3d−2c
Answer:
b=3d-2c
Step-by-step explanation:
Multiply b by 1.
Multiply b by 1.b+2c=3d
Multiply b by 1.b+2c=3dSubtract 2c from both sides of the equation.
Multiply b by 1.b+2c=3dSubtract 2c from both sides of the equation.b=3d−2c
Convert 356.50 base 10 to hexadecimal
Answer:
164.8
Step-by-step explanation:
I used a calculator :)
how do i convert 0,00023kl to ml
[tex]0.00023[/tex]×[tex]1[/tex]×[tex]10^{6}[/tex]
= 0.00023 x 1×10×10×10×10×10×10
= 0.00023 x 1000000
= 230 mL
Formula: kL x 1000000 = mL
Find the center radius form for each circle having the given endpoints of a diameter.
22. (-4,5) and (6,-9)
26. ( 0,9) and (0,-9)
Answer:
22. [tex](x-1)^2+(y+2)^2=74[/tex]
26. [tex]x^2+y^2=81[/tex]
Step-by-step explanation:
The center of a circle is the midpoint of the diameter.
[tex]\textsf{midpoint}=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]
(where [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] are the endpoints of the diameter)
The radius of the circle is the distance between the center and an endpoint of the diameter.
[tex]\textsf{radius}=\sqrt{(a-x_1)^2+(b-y_1)^2}[/tex]
(where [tex](a,b)[/tex] is the center of the circle, and [tex](x_1,y_1)[/tex] is an endpoint of the diameter)
The center-radius form of a circle: [tex](x - a)^2+(y-b)^2=r^2[/tex]
(where (a, b) is the center and r is the radius)
Question 22
[tex]\textsf{Let }(x_1,y_1)=(-4.5)[/tex]
[tex]\textsf{Let }(x_2,y_2)=(6,-9)[/tex]
[tex]\textsf{center}=\left(\dfrac{-4+6}{2},\dfrac{5-9}{2}\right)=(1,-2)[/tex]
[tex]\textsf{radius}=\sqrt{(1+4)^2+(-2-5)^2}=\sqrt{74}[/tex]
⇒ equation of circle: [tex](x-1)^2+(y+2)^2=74[/tex]
Question 26
[tex]\textsf{Let }(x_1,y_1)=(0,9)[/tex]
[tex]\textsf{Let }(x_2,y_2)=(0,-9)[/tex]
[tex]\textsf{center}=\left(\dfrac{0+0}{2},\dfrac{9-9}{2}\right)=(0,0)[/tex]
[tex]\textsf{radius}=\sqrt{(0-0)^2+(0-9)^2}=9[/tex]
⇒ equation of circle: [tex]x^2+y^2=81[/tex]
35 is 70 percent of what number? Explain how you got it. Please check out my other questions on my profile and help me with those as well!
Answer:
50
Step-by-step explanation:
35/n x 100 = 70%
÷100 both sides
35/n = 0.70
x n both sides
35 = 0.70n
÷0.70 both sides
50 = n
Thus, the number you're after is 50
(n is a variable - representing an unknown number or value)
Check:
35/50 x 100 = 70%
Hope this helps!
Thomas goes to summer camp every year if his parents drive 155 miles to Camp to drop him off and then go back to pick him up in two weeks, How many miles will they have traveled?
Answer:
620 miles
Step-by-step explanation:
knowing that if his parents drive 155 miles to camp and then go back and then pick him up in two weeks.
Thus ,Times they drove back and forth is:
Drive to camp
Go back home
Pick him up
Drive back home
Hence, that a total of 4.
Since it 155 miles to camp then it the same going back home and pick him up and then drive back home
Therefore,
155 × 4 = 620
As a result, they would have to traveled 620 miles.
~lenvy~
URGENT! Please help what is the median thank you math experts
Answer: The middle number in a data set when the data are put in order.
Answer and Step-by-step explanation:
To find the median of a set of numbers, you need to find what the number in the center is in a listed group of numbers. I'll use the example of these numbers:
6, 9, 5, 4, 3, 4, 2.5, 8, 0, 1, 5.
First, we need to organize the numbers in numerical order to find the median.
0, 1, 2.5, 3, 4, 4, 5, 5, 6, 8, 9.
It would be the most simple and helpful to cross out each number until we get our center number; the median. (I can't cross the numbers out, so I'll underline them instead.) When crossing out, both sides need to be full of equally crossed out numbers.
0, 1, 2.5, 3, 4, 4, 5, 5, 6, 8, 9.
The number in the center for this example problem is 4. Thus meaning that our median is 4.
Sometimes though, it is not always a whole number. Sometimes you'll have to find the median in between two numbers. For example, let's just say you got stuck between 4 and 5. Then the median for that set of data would be 4.5, because it is still in the middle of the two.
I hope that this helps, let me know if you have any more questions about this topic.
A rectangular sheet of metal has a length of 42 cm and a breadth of 100 cm. It is folded to form a cylinder with the breadth becoming the height. Calculate a) the radius of the cylinder formed b) the volume of the cylinder [Take 1 = 22) ]