Answer:
The probability is the pvalue of [tex]Z = X - \mu[/tex], in which X is the number of minutes we want to find the probability of time being less of, and [tex]\mu[/tex] is the mean.
Step-by-step explanation:
Normal Probability 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.
Standard deviation of 1 minute.
This means that [tex]\sigma = 1[/tex]
Find the probability that a randomly selected college student will find a parking spot in the library parking lot in less than minutes.?
This is the pvalue of Z for X. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{X - \mu}{1}[/tex]
[tex]Z = X - \mu[/tex]
The probability is the pvalue of [tex]Z = X - \mu[/tex], in which X is the number of minutes we want to find the probability of time being less of, and [tex]\mu[/tex] is the mean.
A line passes through the point (-4,-20) and has a slope of 3. Write an equation of the line satisfying the given conditions. Write the answer in slope-intercept form
9514 1404 393
Answer:
y = 3x -8
Step-by-step explanation:
The point-slope form of the equation of a line can be a useful place to start.
y -k = m(x -h) . . . . . line with slope m through point (h, k)
y +20 = 3(x +4) . . . . with given numbers filled in
y = 3x +12 -20 . . . . eliminate parentheses, subtract 20
y = 3x -8 . . . . . . . . slope-intercept form
Answer this please I’ll give brainalist + points, please help!
Answer:
The answer is C because the largest mode is the longest set with the biggest numbers
Step-by-step explanation:
A recipe for 12 cookies calls for 1 1/3 cups milk, 2 1/2 cups flour, and 1 3/4 cups other ingredients. How many cups of milk, flour, and other ingredients are needed to make 24 cookies? *
Answer:
2 2/3 cups of milk, 5 cups of flour, 3 1/2 cups of other ingredients ;)
PLS HELP ITS DUE TODAY
1pt Sort the real-world objects into the category that correctly identifies the combination of shapes that would best model that object.
Sphere and cylinder
A case of soda in a box
Cube and sphere
Tennis balls in a tube
Doghouse with a pointed roof
Triangular prism and cube
Bowling ball in a box
Cylinder and rectangular prism
Step-by-step explanation:
sphere and cylinder=Tennis ball and tube
cube and sphere=Bowling ball in the box
Triangular prism and cube=doghouse with pointed roof
cylinder and rectangular prism=case of soda in box
Answer:
Sphere & Cylinder --> Tennis balls in a tube
Cube & Sphere --> Bowling ball in a box
Triangular Prism & Cube --> Doghouse with a pointed roof
Cylinder & Rectangular Prism --> Case of soda in a box
Mary Jo spends $1,450 to buy stock in two companies. She pays $15 a share to one of the companies and $20 a
share to the other. If she ends up with a total of 90 shares, how many shares did she buy at $15 a share and how
many did she buy at $20 a share?
Answer:
she bought 70 shares of the $15 shares
she bought 20 shares of the $20 shares
Step-by-step explanation:
this would be solved using simultaneous equation
let a = $15 shares
b = 20 shares
a + b = 90 equation 1
15a + 20b = 1450 equation 2
Multiply equation 1 by 15
15a + 15b = 1350 equation 3
subtract equation 3 from equation 2
5b = 100
b = 20
substitute for b in equation 1
20 + a = 90
a = 70
Which function has a domain where x=3 and a range where y=2 ?
Answer:
x times y is 6
This is the simplest one
Step-by-step explanation:
x=3 and y=2
Answer:
(3,4)
Step-by-step explanation:
so domain is the x value and range is the y value so to find the domain it is
(3,4)
Hope that helps :)
Find the missing side of this right
triangle.
21
Х
15
x=
✓[?]
Enter the number that belongs in the green box.
Enter
Answer:
Step-by-step explanation:
square of 15 + square of x = square of 21
225 + square of x = 441
441 - 225 = 216
x = 216
a family wants to have two children determine the probability of a family having two girls
Sam is designing an open wooden box in the shape of a rectangular prism. The base of the box will be 6 feet by 8 feet. He has not yet decided what the height will be.
Answer:
10ft
Step-by-step explanation:
Let assume the volume of the box be 480ft^3
Required
height h
Volume of the box = length * width * height
Substitute
480 = 8 * 6 * h
480 = 48 * h
h = 480/48
h = 10ft
Hence the height of the box if the volume of 480ft^3 is 10ft
Evaluate $3x^y + 4y^x$ when $x=2$ and $y=3$.
Answer:
60
Step-by-step explanation:
Given,
x = 2
y = 3
3x^y + 4y^x
= 3 ( 2 )^3 + 4 ( 3 )^2
= 3 ( 8 ) + 4 ( 9 )
= 24 + 36
= 60
Geometry question plz
Marvin has a bag that contains 3 red marbles and 9 blue marbles he will randomly select a marble from the bag what is the probability that Marvin will select a red marble
Answer:
now how
Step-by-step explanation:
because he likes red marbles
i dont know
1. Solve the inequality. x/8 >4
Answer:
X > 32
Step-by-step explanation:
Brainliest?
Is this linear, exponential growth, exponential decay, or neither?
Answer:
Linear Exponential Decay.
Step-by-step explanation:
It is linear exponential decay,
it is decreasing by -7,
everytime x goes up 1, y goes down -7,
this line has a slope of -7/1.
Slope: -7x
y-intercept: (0,2)
Convert 2,36hrs to hrs, minutes and seconds
The answer is 3.93 hours. This is because in one hour there are 60 minutes so you would need to divide your number 236 by 60 and you should end up with 3.9333, which rounded to would just be 3.93 hours in total.
Hope that helps!
Do quadratic functions and linear functions have asymptotes? If so how do you identify them
Answer:
wow thats some hardcore math ur learning
Step-by-step explanation:
Match each equation on the left with the number and type of its solutions on the right.
Answer:
4= 0 is two one real solution.
The graph below shows which system of inequalities?
PLZ HELP ASAP
Ps I accidently clicked on a choice
Answer:
B or top right answer or second answer is correct.
What is a quartic polynomial function with zeros -20, -16, -11, and -9?
Answer:
Step-by-step explanation:
I hope that you don't have to multiply this out. If you do, leave a note. I delete my answer.
y = (x + 20)(x+16)(x + 11)(x + 9)
HELP AND EXPLAIN PLSS
Answer:
Amount they ate is 6/8 or 3/4 of the pizza
Amount left over is 2/8 or 1/4 of the pizza.
Step-by-step explanation:
your family at 6 out of 8 pieces and simplified thats 3/4 if you divide both by 2
so the pieces left over would be 2 pieces or 2 out of the 8 pieces are left over.
making your fraction 2/8
Now you simplify and you can divided both 2 and 8 by 2
Making your other fraction 1/4
find the slope and y-intercept
Answer:
m = -4/5
b = 4
Step-by-step explanation:
If u want to know what students think is the best season of the school year from school 76, what is the best way sample the students?
Answer:
B, it should be
Step-by-step explanation:
because its not A, because its just 7th and 8th
its not C, cause thats JUST 5th grade
its not D, because its part of a class, not the entire school.
Mark me Brainlest
A plane going through points B, C, and E slices this rectangular prism. What is the shape of the cross section? Trapezoid Qaudrilateral Triangle Rectangle
Answer:
triangle
Step-by-step explanation:
Answer:
The answer is triangle.
Step-by-step explanation:
JUST CONNECT THE POINTS! You can clearly see that it's a triangle. Am on this question rn.
2x - 3y = 16
3x + 2y = 11
Solve the system of equations.
A)
(155
B)
(5,-2)
C)
(5, 4)
D
(-1,-6)
Cars A and B leave the same place and travel in the same direction along a straight road. Car A travels at 60 km/h and car B travels at 72 km/h. After how long will they be at 8km apart?
Answer:
Car A: 8 minutes
Car B: 6.67 minutes
Step-by-step explanation:
Car A: 60km evrery hour so,
1 km every minute, so he will be in 8km in 8 minutes.
Car B: 72km per hour so,
72/60 = 1.2 = 1.2 km per minute.
8/1.2 = 6.6666666666667 which is about 6.67 to the nearest hundredth.
Answer:
40 min
Step-by-step explanation:
Car A is traveling at 1 km/min (60/60)
Car B is traveling at 1.2 km/min (72/60)
Car B gains .2km on Car A for every minute they drive.
8km/.2 = 40
Need help!!!!!!!!!!!!!!!!!
NEED ANSWER ASAP PLS WILL MARK BRAINLIEST
Answer:
the answer for this is option C 4x/x+5
Answer:
x + 5/ x - 3
Step-by-step explanation:
expand 4x²+16 to get:
4x(x+4)
then multiply by the reciprocal to cancel the 4x(x+4) leaving you with x + 5/ x - 3
The area of a right triangle is 36 square
meters. The height is twice as long as
the base.
To find the area of a triangle, use the
1
following formula:a bh
2
where b is the base and h is the height.
How long is the shorter leg of the triangle?
Answer:
6 m
Step-by-step explanation:
36 m^2 = bh/2
36·2 = bh/2·2
72 = bh
72 = 12·6
check
36 m^2 = 12·6/2
36 = 36
:)
The circumference of Earth at the equator is about 40,074 kilometers. Find the diameter of Earth to the nearest kilometer.
A.12,762 km
B.25,512 km
C.62,884 km
D.6,339,700 km
Answer:
C.62,884
Step-by-step explanation: