Answers
Answer:
is a mathematics problem and is so easy and square and triangle and rectangle and circle formulas
Step-by-step explanation:
√(a - r) + m = y
√(a - r) = y - m
(a - r) = (y - m)²
a = (y - m)² + r
a = y² - 2my + m² + r.
The answer is the 2nd option.
Related Questions
The amount of time needed for a certain machine to process a job is a random variable with mean EXi = 10 minutes and Var(Xi)=2 minutes2. The times needed for different jobs are independent from each other. Find the probability that the machine processes less than or equal to 40jobs in 7hours.
Answers
Answer:
0.98732
Step-by-step explanation:
Given that :
Mean = 10 minutes
Variance = 2 minutes
For less than equal 40 jobs
Mean (m) = 40 * 10 = 400 minutes
Variance = 2 * 40 = 80 minutes
Standard deviation (s) = √variance = √80
Converting hours to minutes
X = 60 * 7 = 420 minutes
P(X≤ 420) :
Z = (x - m) / s
P(X≤ 420) :
Z = (420 - 400) / √80
Z = 20 / √80 = 20 / 8.9442 = 2.236
P(Z ≤ 2.236) = 0.98732
The probability that the machine processes less than or equal should be 0.98732
Calculation of the probability:
Since
Mean = 10 minutes
Variance = 2 minutes
For less than equal 40 jobs
Mean (m) = 40 ( 10) = 400 minutes
Variance = 2 (40) = 80 minutes
Now
Standard deviation (s) = √variance = √80
Now here we Converting hours to minutes
So,
X = 60 (7) = 420 minutes
Now
P(X≤ 420) :
Z = (x - m) / s
Z = (420 - 400) / √80
Z = 20 / √80
= 20 / 8.9442
= 2.236
Now finally
P(Z ≤ 2.236)
= 0.98732
Hence, The probability that the machine processes less than or equal should be 0.98732
Learn more about probability here: https://brainly.com/question/3066522
Sarah bought 4 pens for $1.00. How many did she pay for each pen?
Answers
Answer:
Sarah paid 25 cents for each individual pen
Step-by-step explanation:
Answer:
she paid .25 cents for each
Step-by-step explanation:
1.00÷4=.25
which is true when x-3<2
Answers
Hey there!
“x – 3 < 2”
Let’s change your current question into a(n) equation to make it EASIER to solve (this is for temporary purposes ONLY)
• Temporary question
x – 3 = 2
• First: ADD BOTH SIDES by 3
x – 3 + 3 = 2 + 3
• CANCEL: –3 + 3 because that gives you 0
• KEEP: 2 + 3 because that helps solve for x
• New temporary question: 2 + 3 = x
2 + 3 = 5
The temporary question answer is: x = 5 ✅
NOW LETS SOLVE FOR YOUR ACTUAL EQUATION (just saying it REQUIRES the SAME steps as the temporary question just a TAD bit differently!)
x – 3 < 2
• FIRST: ADD both SIDES BY 3
x – 3 + 3 < 2 + 3
• CANCEL: –3 + 3 because that gives you 0
• KEEP: 2 + 3 because that helps us compare the answer with x
• New equation: x < 2 + 3
2 + 3 = 5
x < 5
Answer to your given question is: x < 5 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
Oceanside Bike Rental Shop charges a 15 dollar fixed fee plus 9 dollars an hour for renting a bike. Dan paid 69 dollars to rent a bike. Which equation when solved would show how many hours the bike was rentented? Let h = hours
Answers
Answer:
Step-by-step explanation:
Dan paid 69 divided by 9 = H - 15
help me please help me ..
Answers
Answer:
26 is the correct answer.
fatma is 26 years old.her daughter is 4 years old. in how many years will fatma be doubled her daughters ago?
Answers
Answer:
my answer aint as good as the other persons but there right it would be 18 years
Step-by-step explanation:
Jones is getting a new laptop. The regular price is $986. The store is offering an 18% discount. What is the cost of the laptop not including tax
Answers
Help please will brain list
Answers
Answer. All the correct statements are:-
B. -8.7 is further to the left on the number line than -8.4
C. -8.7 is less than -8.4
F. -8.4 is greater than -8.7
Answer:
Step-by-step explanation:
angie needs to buy 156 candlesbfor a party. each package has 8 candles. how many packages should Angie buy?
Answers
20 packages
Step-by-step explanation:
Divide 156 by 8 and you get 19.5. Angie needs 156 candles, so you round 19.5 to 20.
Find the value of X in the triangle shown.
Answers
Use the Pythagorean Theorem.
13^2 = 5^2 + x^2
169 = 25 + x^2
Subtract 25 from both sides.
144 = x^2
Take the square root.
12 = x
There are 15 parking garages downtown. Each parking lot can hold 175 cars. About how many parking spaces are available at the downtown garages?
Answers
Answer:
2625
Step-by-step:
GIVING BRAINLIST TO WHOEVER ANSWERS
Answers
A baker uses chocolate with 75% cocoa for his famous cake. But the supplier delivered 100 lb of chocolate with 70% cocoa. The baker needs to melt and mix the delivery with chocolate that has 90% cocoa. How much of the 90% chocolate should he use.
Answers
Answer:
33 1/3 pound of cocoa
Step-by-step explanation:
;)
the sum of allmultiples of 6 between 10 & 87 is equal to
Answers
The sum of all multiples of 6 between 12 and 87 is equal to 624.
How to get the sum?
The multiples of 6 are of the form: 6*n
Where n is an integer.
The multiples between 10 and 87 are:
6*2 = 12
6*3 = 13
...
6*14 = 84
Then the sum of all these multiples can be written as:
[tex]6*2 + 6*3 + 6*4 + ... + 6*14\\\\= 6*(2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14) = 624[/tex]
The sum of all multiples of 6 between 12 and 87 is equal to 624.
If you want to learn more about multiples:
https://brainly.com/question/251701
#SPJ1
How many ways are there to choose five doughnuts if there are eight varieties (and only the type of each doughnut matters)?
Answers
Answer:
There are 56 ways to choose 5 from 8 varieties.
Step-by-step explanation:
a) Choosing 5 out of 8
This is a combination problem, given by the formula below:
C(n,r)=?
C(n,r)=C(8,5)
=8!/(5!(8−5)!)
= 56
b) A combination is the number of ways to choose a sample of r elements from a set of n distinct objects where order does not matter and replacements are not allowed. The result of this combination of 5 out of 8 varieties shows that there 56 ways one can choose. The formula is given by 8 factorial divided by (5 factorial by 3 factorial).
A copper wire has a mass of 9.09grams and a volume of 1.01cubic centimeters. Calculate its density.
Write your answer to the hundredths place.
Answers
Answer: The density of copper should be the same in a wire as it is in a chunk,
so the answer is 8.9 g/cm3.
The population of California is approximately 38,040,000. The population of Texas is about 2.606 × 107. What is the approximate total population of these two states?
Answers
Answer:
Step-by-step explanation:
California population 3.804 x10^7
texas population 2.606x 10^7
total= 6.4 x10^7
Answer:
c
Step-by-step explanation:
What is the product of (5.9 x 10^3) and (5.9 x 10^4) expressed in scientific notation?
please help
Answers
Answer: 3.481 x 10^8
:)
Step-by-step explanation:
(5.9 x 10^3)(5.9 x 10^4)
(5.9 x 5.9) (10^3 x 10^4)
34.81 x 10^7
= 3.481 x 10^8
What is the distance between points A and B?
Answers
which means 4 numbers
Answer:
I think it is B
Step-by-step explanation:
Hope this helped have an amazing day/month/year!
The brown family might plant 1/8 tomatoes, 1/8 cabbage, and 1/8 peppers. If they do, what fraction of their garden will be unplanted?
Answers
Mike drove 397 miles on 8 hours. About how many miles did she drive each hour?
Answers
Answer:
49.6
Step-by-step explanation:
just divide 397 by 8
Answer:
About 49.63 miles per hour
Step-by-step explanation:
but this is the answer
hope this helps
A water well drilling rig has dug to a height of -15 feet in three hours. If the rig has been running constantly and is currently at a height of -192.5 feet, for how long has the rig been running?
22.25 hours
97.4 hours
38.5 hours
12.8 hours
Answers
A company loses 345,000 in 2011
Answers
Answer:
they lose 20,000,000 in 2021 how much of a difrence is this
Step-by-step explanation:
express 4,085 in scientific notation
Answers
Answer:
4.085 x 10^3
Step-by-step explanation:
just use powers to figure out these questions. it always starts from a single digit! for example if the number is 4,000 it would just be 4 x 10^3 but because theres more unique numbers then it would be a decimal
If the electrician charges $65 an hour, how much will Laura's total for the electrical work be, including
the parts and ceiling fan?
Show your work
Answers
Answer:
Given: Electrician charges= $65/ hour
Step-by-step explanation:
let the total time(total hours) he worked for Laura be 't'
if for one hour, he charges $65
then for 't' hours he will charge=$65 * t
total charges for the parts and ceiling fan=$65t
Find the value of each trigonometric ratio.
Answers
Answer: C
Step-by-step explanation:
u have insta
Answer:
sine = opposite / hypotenuse
sine C = 8 / 15
sine C = .53333333333333
Step-by-step explanation:
Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long. A preliminary sample conducted by The Wall Street Journal showed that the standard deviation of the amount of time devoted to previews was five minutes. Use that as a planning value for the standard deviation in answering the following questions.a. If we want to estimate the population mean time for previews at movie theaters with a margin of error of 78 seconds, what sample size should be used
Answers
Answer:
57
Step-by-step explanation:
Given that :
Standard deviation (σ) = 5 minutes = (5 *60) = 300 seconds
Margin of Error, E = 78
Assume a confidence interval of 95%;
Using the relation :
((Zα/2 * σ) / E)²
(1 - α)/2 = (1 - 0.95)/2 = 0.05 /2 = 0.025
Z0.025 = 1.96
Sample size = ((1.96 * 300) / 78)²
Sample size = (588 / 78)^2
Sample size = 7.5384615^2
Sample size = 56.828
= 57 samples
please give answers asap!! correct answers only
Answers
Answer:
15 units
Step-by-step explanation:
UW is the midsegment of ΔVXY,
By midsegment theorem of a triangle,
"Segment joining the midpoints of two sides of a triangle is parallel to the third side and measure of midsegment is half of the length of the third side."
UW = [tex]\frac{1}{2}(XY)[/tex]
Since, XY = 30 units
UW = [tex]\frac{1}{2}(30)[/tex]
= 15 units
Therefore, length of the midsegment UW = 15 units will be the answer.
Solve the system of equations.
13r - 6y = 22
2 = y + 6
Answers
Answer:
The answer is just r = -2/13
I need help please!!!!!!!!!!!!!!!!!!!
Answers
Answer:
A sand dune stands 5 feet above sea level. The hill is eroding at a rate of 1 foot per 20 years. Let y represent the height of the sand dune after x years. Which equation represents the situation?
y = negative StartFraction 1 Over 20 EndFraction x minus 5
y = negative StartFraction 1 Over 20 EndFraction x + 5
y = negative 20 x minus 5
y = negative 20 x + 5
Step-by-step explanation: