Answer:
9.931 years
Step-by-step explanation:
Find the solutions of the quadratic equation 5x^2−x+6=0.
Answer:
there is a problem b is -1 because of the invisible 1 so when I solved it I got a negative 119 so I can't get the square root please check the question I'll try to resolve it
this has a question in it plus it is beneficial and helps my friends be able to ask questions therefore you can not remove it. :)
Answer: 5/27
Step-by-step explanation:
1/9 + 2/27 = ?
1. Find the LCD (Least Common Denominator )
LCD: 27
2.Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD.
(1/9 x 3/3) + (2/27 + 1/1) =
3. Solve
3/ 27 + 2/27 =5/27
Hence, the answer is 5/27
A $550 T.V is discounted by 30%. It is then discounted another 10%
Answer:
346.50
Step-by-step explanation:
550 discounted by 30% is 385.00.
385.00 discounted by 10% is 346.50
he wait time (after a scheduled arrival time) in minutes for a train to arrive is Uniformly distributed over the interval [0,15]. You observe the wait time for the next 95 trains to arrive. Assume wait times are independent. Part a) What is the approximate probability (to 2 decimal places) that the sum of the 95 wait times you observed is between 670 and 796
Answer:
81.74% probability that the sum of the 95 wait times you observed is between 670 and 796
Step-by-step explanation:
To solve this question, the uniform probability distribution and the normal probability distribution must be understood.
Uniform distribution:
A distribution is called uniform if each outcome has the same probability of happening.
The distribution has two bounds, a and b.
Its mean is given by:
[tex]M = \frac{b - a}{2}[/tex]
Its standard deviation is given by:
[tex]S = \sqrt{\frac{(b-a)^2}{12}}[/tex]
Normal distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set 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]
The Z-score 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. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
n instances of the uniform distribution can be approximated to the normal with [tex]\mu = nM[/tex], [tex]\sigma = S\sqrt{n}[/tex]
Uniformly distributed over the interval [0,15].
This means that:
[tex]M = \frac{15 - 0}{2} = 7.5[/tex]
[tex]S = \sqrt{\frac{(15-0)^2}{12}} = 4.33[/tex]
95 trains
[tex]n = 95[/tex], so:
[tex]\mu = 95M = 95*7.5 = 712.5[/tex]
[tex]\sigma = S\sqrt{n} = 4.33\sqrt{95} = 42.2[/tex]
What is the approximate probability (to 2 decimal places) that the sum of the 95 wait times you observed is between 670 and 796?
This is the pvalue of Z when X = 796 subtracted by the pvalue of Z when X = 670. So
X = 796
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{796 - 712.5}{42.2}[/tex]
[tex]Z = 1.98[/tex]
[tex]Z = 1.98[/tex] has a pvalue of 0.9761
X = 670
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{670 - 712.5}{42.2}[/tex]
[tex]Z = -1[/tex]
[tex]Z = -1[/tex] has a pvalue of 0.1587
0.9761 - 0.1587 = 0.8174
81.74% probability that the sum of the 95 wait times you observed is between 670 and 796
Can someone please help?
Answer:
The one all the way to the right
Step-by-step explanation:
30 ÷ X = 6
30 ÷ 5 = 6
If the pre-image (4,-3) is translated <-6,-8> the image will be located at: (?,?)
Answer:
(-2, - 11)
Step-by-step explanation:
Coordinate of preimage = (4, - 3)
Pre image is translated <-6,-8>
X - coordinate of preimage = 4
Translation, x coordinate + (-6)
Y - coordinate of preimage = - 3
Translation, x coordinate + (-8)
Image will be located at (4+(-6) ; - 3+(-8))
Hence, we have (-2, - 11)
what is the area of the object above
Answer:
104 in²
Step-by-step explanation:
look at the picture above... by splitting the figure, we get two rectangles.
a1= 5×4 = 20in²
a2= 12×7= 84 in²
total area = a1+a2 = 20+84=104in²
Need help!!!!!!!!!!!!!!!!
Answer:
x=35
y=72.5
Step-by-step explanation:
Answer:
x=35 , y=72.5
Step-by-step explanation:
I'm not amazing at explaining but x is obviously 35 as its across from it and looks like it's the same angle, we'll be able to test this when we figure out y. Both of the y values are the same number so you just need to figure out
2y + 35 = 180
Minus 35 from both sides
2y = 145
Then we can divide 2 from both sides
y = 72.5
Then we test for x
2y + x = 180
Plug in y
145 + x = 180
Minus 145 from both sides
x= 35
There's your answer! I hope I cleared up any confusion
Given that the measure of Angle CDB = 31 degrees find the indicated
measures for angle 1 and 2.
Answer:
angle 1=149°
angle 2=31°( because they are alternating angles)
What kind of triangle would angels of 24, 52 and 104 degrees?
Answer:
There are 180 degrees in the 3 angles of a triangle.
Step-by-step explanation:
What is the volume of this triangular prism
9514 1404 393
Answer:
153.6 mm³
Step-by-step explanation:
The volume of a prism is given by the formula ...
V = Bh . . . . . . where B is the area of the base, and h is the height
The area of the triangular base is given by the formula ...
A = 1/2bh . . . . where b and h are the base and height of the triangle
For a right triangle, the lengths of the legs can be used for the base and height.
The base area is ...
A = (1/2)(6 mm)(8 mm) = 24 mm²
Then the volume is ...
V = (24 mm²)(6.4 mm) = 153.6 mm³
This figure shows the dimensions of the tent Anderson wants to
buy
What is the volume of the tent?
131
Enter your answer in the box
V=__
Answer:
131
Step-by-step explanation:TRUST ME IT IS RIGHT
The quotient of a number and 0.004 is 60. Find the number
Answer:
Step-by-step explanation:
x/.004 = 60
solve x
x = .24
100 points
(algebra one)
describe and correct the error in comparing the graphs
actually answer this please!!
9514 1404 393
Answer:
The description of the translation direction should be "up", not "down."
Step-by-step explanation:
The blue graph of y = x²+3 is above the graph of the parent function y = x². That is, it is a copy of y = x² that has been moved (translated) up.
The correct description is ...
The graph of y=x²+3 is a translation 3 units up of the graph y=x².
(5p^3 - 3) +(2p^2-3p^3)=
Answer:
4p^3-3 jejeieooejejenjekeoeoeo
log x + log (x + 9) = 1
Answer:
x = 1
Step-by-step explanation:
Mark as brainllest
Markus is finding that it takes too long to track down all of the groceries he needs to buy from a given store. GroceryGrabbr to the rescue! The app allows Markus to input his shopping list and search for his local grocery store in GroceryGrabbr's database. If his grocery store is there, Markus is all set to go! The database stores grocery items, cost, and item location information for each grocery store. When Markus walks into the store, a notification pops up on his smartphone letting him know that GroceryGrabbr is ready to get to work. Each of Markus' grocery items is displayed one at a time, along with the aisle number and shelf location. After Markus grabs his items off the shelf, he hits a button on the app to navigate to the next item. The list of items is arranged so that Markus follows the most efficient path through the grocery store. When Markus finishes shopping, the total amount of money his groceries cost is displayed, which allows him to double check the total cost with the cashier. GroceryGrabbr pays grocery stores a small amount of money for each user who successfully uses the app and checks out of the store with over one hundred dollars worth of groceries.
Which of the following data must be obtained from the user's smartphone in order for GroceryGrabbr to suggest the order for picking up groceries?
a) the grocery list the user input
b) the location of the grocery store
c) the user's photo album on their smartphone
d) the user's current location
Answer:
A. The grocery list the user input
Step-by-step explanation:
Each week, the price of oranges at the farmer's market increases by 20%.
The price of oranges this week is $4.50.
What was the price last week?
Will give brainliest to correct answer.
The price of orange last week was $3.75
An equation is used to show the relationship between two or more numbers and variables.
The price of oranges increases by 20% each week.
The price of oranges this week is $4.50. Hence:
Price of orange last week (x) is given by:
4.5 = x + 20% of x
4.5 = x + 0.2x
1.2x = 4.5
x = 3.75
The price of orange last week was $3.75
Find out more on equation at: https://brainly.com/question/24868934
In the given polygon, AC= 5x - 24, AO= 3. Find x. NO LINKS!!!
Answer:
[tex]x=6[/tex]
Step-by-step explanation:
5x - 24 = 3 * 2
5x - 24 = 6
5x = 30
x = 6
Answer:
Solution given:
AC= 5x - 24, AO= 3.
now
since diagonal bisect each other So,
AC=2 AO
5x-24=2(3)
5x=6+24
x=30/5
x=6
. A section of rope 5 inches long represents 20% of the length of the entire rope. How long is the rope?
Answer:
full length = 25 in.
Step-by-step explanation: .
20% is 1/5 of 100% so in order to find 100% of the length, multiply 5in (20%) by 5 to get to the 100% which will give you 25in.
There are two openings at a programming company and 40 people apply. How many different ways can those two positions be filled?
Using the combination formula, it is found that these two positions can be filled in 780 ways.
The order in which the positions are filled is not important, for example, João and Elisa is the same outcome as Elisa and João, hence the combination formula is used to solve this question.
What is the combination formula?[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by:
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
In this problem, two people are taken from a set of 40, hence the number of ways is given by:
[tex]C_{40,2} = \frac{40!}{2!38!} = 780[/tex]
More can be learned about the combination formula at https://brainly.com/question/25821700
#SPJ1
I need help with 1-6
Answer:
1.25π
π/9
-17π/12
-7π/9
5π/12
-5π/3
Step-by-step explanation:
To convert degrees into radians mulitply it by π/180
225/180=1.25
1.25π
20/180=1/9
π/9
-255/180= -17/12
-17π/12
-140/180=-7/9
-7π/9
75/180=5/12
5π/12
-300/180= -5/3
-5π/3
help me pleaseeeeeeeeeeeeeeeeeeeee
Answer:
3 X 1/2
Step-by-step explanation:
I started by eliminating C and B because of adding and subtraction in the problem.
Answer:
3 x 1/2
Step-by-step explanation:
there are 3 groups of 1/2
Can u help me and if u don’t know don’t answer
Answer:
a. The scale factor from Drawing 1 to Drawing 2 is 40%
b. The length of the bottom side of Drawing 2 is 7.8 cm
Step-by-step explanation:
5.2 / 13 = 26 / 65 = 2 / 5 = 4 / 10 = 0.4 = 40%
19.5 / 2.5 = 39 / 5 = 78 / 10 = 7.8
Find the missing side
Answer:
Step-by-step explanation:
c^2 = a^2 - b^2
13^2 - 5^2 = -12
Answer:
Step-by-step explanation:
Which expresion does NOT equal the length of one of these pieces in feet. Plz help me i really need it.
Answer: J
Step-by-step explanation:
J is the expression we would use to find "nine divided by five"
Whatever is inside the little box-looking thing (not sure how to describe it) is being divided by the number on the outside of the box-looking thing.
QUICK PLEASE HELP!!
I WILL MARK BRAINLIEST!!!
The width of a rectangle is 3 units less than the length. The area of the rectangle is 4 Units What is the length, in units, of the rectangle?
Answer: 4 units
Step-by-step explanation: IT cant be 2x2 or else it would be a square
so it would have to be that the width is 1 unit and the lenght is 4 units.
use pascal's triangle to expand the following binomial expression
1.(2k-1/3)⁶
9514 1404 393
Answer:
64k^6 -64k^5 +(80/3)k^4 -(160/27)k^3 +(20/27)k^2 -(4/81)k +1/729
Step-by-step explanation:
The row of Pascal's triangle we need for a 6th power expansion is ...
1, 6, 15, 20, 15, 6, 1
These are the coefficients of the products (a^(n-k))(b^k) in the expansion of (a+b)^n as k ranges from 0 to n.
Your expansion is ...
1(2k)^6(-1/3)^0 +6(2k)^5(-1/3)^1 +15(2k)^4(-1/3)^2 +20(2k)^3(-1/3)^3 +...
15(2k)^2(-1/3)^4 +6(2k)^1(-1/3)^5 +1(2k)^0(-1/3)^6
= 64k^6 -64k^5 +(80/3)k^4 -(160/27)k^3 +(20/27)k^2 -(4/81)k +1/729
help me please thank you
i cant see your photo
Step-by-step explanation: