After the z value is calculated, the probability is obtained by using the corresponding area under the normal curve from the z-table. The z-table shows the area to the left of the calculated z-score and can be used to determine probabilities and critical values for the standard normal distribution.
Explanation:After the z value is calculated, the probability is obtained from a table of z-scores. The z-table is used to find the area under the normal curve, which represents the probability associated with a z-score. When looking up a z-score in the z-table, you will see the area under the normal curve to the left of the z-score which corresponds to the probability of obtaining a score within that range. The z-table provides critical values for the standardized normal distribution which has a mean of 0 and a standard deviation of 1. To calculate the area between two z-scores, subtract the smaller area from the larger area.
For example, if we need to find the z-score that corresponds to an area of 0.9, we would look up this value in the z-table to discover that the z-score is approximately 1.28. This z-score then can be used with the mean and standard deviation of the distribution to find the original score using the formula μ + (z)(σ) = x. It's important to note that while most z-tables show the area to the left, some may provide the area from the mean to the z-score, so the method used will be indicated on the table itself.
what is the value of f (x) = 1/2 x + 5 when x=4
Lisa can run a mile in 7 minutes. at that rate of speed how long would it take her to run 2 kilometers
It would take Lisa approximately 8.669 minutes to run 2 kilometers at her rate of speed.
Explanation:To find out how long it would take Lisa to run 2 kilometers, we need to convert the distance she can run in a mile to kilometers. Since there are 1.60934 kilometers in a mile, we multiply the time it takes her to run a mile (7 minutes) by the conversion factor (1.60934 kilometers/mile). This gives us the time it would take her to run 1.60934 kilometers. To find the time it would take her to run 2 kilometers, we can set up a proportion:
Calculating this gives us x ≈ 8.669 minutes. Therefore, it would take Lisa approximately 8.669 minutes to run 2 kilometers at her rate of speed.
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Easy points!!! Correct answer gets brainliest. :)
Jack's mother gave him 505050 chocolates to give to his friends at his birthday party. He gave 333 chocolates to each of his friends and still had 222 chocolates left.
Write an equation to determine the number of friends (x)(x)left parenthesis, x, right parenthesis at Jack's party.
Find the number of friends at Jack's party.
16
This seems to have been miswritten. So I went ahead and just put it as 50, 3 and 2Okay, so Jack started with 50 chocolates and ended with 2.
The simple way to calculate it would be by realizing that Jack only distributed 48 chocolates. We can find how many times 3 fits into 48 by dividing 48÷3=16.
Using algebra, we substitute the value we want to find with x. Here what we want to find is the number of friends that were at Jack's party.
We know that he started with 50 chocolates, then distributed 3× the number of friends present (which is x).
We write that down as 50−3x
(It's minus because when chocolates are distributed, Jack is taking away from what he has.)
We know that after this, there were only 2 chocolates left, so it's
50−3x=2
Then we proceed by moving all the numbers to the right until only x is left:
−3x=2−50
−3x=−48
x=−48−3
x=16
Conclusion: The number of people that attended the party was 16.
Answer:
The equation is 3x+2=50
There were 16 friends at Jack's party.
Step-by-step explanation:
I JUST TOOK THE TEST
what is the domain function of this table?
X Y
3 4
4 4
5 2
6 5
A) {2,4,5}
B) (3,4)
C) {3,4,5,6}
D) (3,4)(4,4)(5,2)(6,5)
The domain function of this table is C) {3,4,5,6}. Option c is the correct answer.
The domain of a function is the set of all possible input values. In this case, the input values are the X-values in the table.
The X-values in the table are 3, 4, 5, and 6. Therefore, the domain of the function is {3, 4, 5, 6}.
So the answer is (C).
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What two lines are parallel i 5y 3x 5 ii 5y=2x-5y 5y=4+3x 5y-3x=-1?
jacquie hired a contractor to install a tile floor in her laundry room which measures 10.5 feet by 8 feet. the contractor informed her that the tiles cost $4.75 a square foot, he would charge $22 per hour, and it would take him 7.5 hours to complete the job. when the job was done, jacquie received a bill in the amount of $659.12 from the contractor which included an 8% sales tax. is the amount on the bill correct?
A car was moving 110 km/h how long did it take to go 25.5 miles?
Determine the graph
Every square is a rectangle.
always
never
sometimes
Winnie Pooh Boo Boo
Needs help
:P XD
YEEET im so hyper right know
Answer:
Always! I mean that is easy...
Step-by-step explanation:
Geometry help please, 4 questions.
Attachment 2 and 3 go together.
Are my guesses on 4 and five correct?
Thank you!!
The basal energy rate is the daily amount of energy (measured in calories) needed by the body at rest to maintain body temperature and the basic life processes of respiration, cell metabolism, circulation, and glandular activity. As you may suspect, the basal energy rate differs for individuals, depending on their gender, age, height, and weight. The formula for the basal energy rate for men is 4072-01-02-03-00_files/i0270000.jpg, where B is the basal energy rate (in calories), W is the weight (in kilograms), H is the height (in centimeters), and A is the age (in years). A male patient is 70 years old, weighs 55 kilograms, and is 172 centimeters tall. A total daily caloric intake of 1000 calories is prescribed for him. Determine if his caloric intake is sufficient for his needs and explain why or why not.
Please answer as soon as possible.
Eric downloads a coupon for 10% off. He bought a camera for 95 dollars and an extra battery for 15.99 dollars.
a: what is the total cost if the coupon is applied to the digital camera
b: What is the total cost if the coupon is applied to the extra battery
c: To witch item should Eric apply the discount? explain
d: Eric has to pay 8% sales tax after the coupon is applied. How much is his total bill?
An isosceles right triangle has leg lengths of 4 centimeters. What is the length of the altitude drawn from the right angle to the hypotenuse?
can someone graph this equation? 3x-10=21+3x
If 6 chocolate cost $0.93 how much do 22 cost
A bracelet was marked up $50 from cost, which amounts to a 20% increase. Find the original cost of the bracelet.
I NEED HELP ASAP WILL GIVE 50 POINTS!!!
This diagram shows a pre-image
△ABC, and its image, A′′B′′C′′, after a series of transformations.
Select from the drop-down menus to correctly complete the statements.
△ABC is rotated 180 degrees about the origin to become △A'B'C'. Then △A'B'C' is translated 3 units down to become △A"B"C". Because the transformations are both rigid, the pre-image and image are congruent.
In Euclidean Geometry, the mapping rule for the rotation of a geometric figure about the origin by 180° in a clockwise or counterclockwise direction can be modeled by the following mathematical expression:
(x, y) → (-x, -y)
Point A (1, -1) → Point A' (-1, 1)
Point B (4, -2) → Point B' (-4, 2)
Point C (7, 2) → Point C' (-7, -2)
Next, we would apply a translation 3 units down to the new figure (△A'B'C'), in order to determine the coordinates of its image as follows;
(x, y) → (x, y - 3)
A' (-1, 1) → (-1, 1 - 3) = A" (-1, -2).
B' (-4, 2) → (-4, 2 - 3) = B" (-4, -1).
C' (-7, -2) → (-7, -2 - 3) = C" (-7, -5).
Therefore, the resulting figure must be located in the third quadrant as illustrated in the diagram shown above.
What is the quotient?
158÷(−135)
Enter your answer as a mixed number, in simplified form, in the box.
Answer:
the answer is -1 1/64
Step-by-step explanation:
i have k12
Answer:
got 80 percent cuz i missed this :l
Step-by-step explanation:
15 3/4 is the right hope it help
One die is rolled 3 times, what is the chance of getting all 4's?
The chances of getting 4 when a die is rolled three times will be 216.
What is the combination?A combination in mathematics is a choice made from a group of separate elements where the order of the selection is irrelevant.
Given that a die is rolled 3 times. The chances of getting 4's will be calculated as:-
In a die, there are 6 numbers from 1 to 6. At one time only one number will come. the combination will be
Combination = 6 x 6 x 6
Combination = 216
Therefore, the chances of getting 4 when a die is rolled three times will be 216.
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Patrick has a 600-meter skin of your used to before 8.9 minutes of yarn to make a hat does he have enough yarn left to make a scarf that use 350 4.0 thing Renaissance explain
To determine if Patrick has enough yarn left to make a scarf, subtract the amount of yarn used for the hat from the total amount of yarn, and then compare it with the amount needed for the scarf.
Explanation:In this question, we are given that Patrick has a 600-meter spool of yarn. He used 8.9 minutes of yarn to make a hat. We need to determine if he has enough yarn left to make a scarf that uses 350 meters of yarn.
To solve this problem, we need to subtract the amount of yarn used for the hat from the total amount of yarn, and then compare it with the amount needed for the scarf.
Let's calculate:
Amount of yarn used for the hat: 8.9 minutesAmount of yarn left: 600 - 8.9 = 591.1 metersAmount of yarn needed for the scarf: 350 metersSince the amount of yarn left (591.1 meters) is greater than the amount needed for the scarf (350 meters), Patrick has enough yarn left to make the scarf.
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Choose the graph of the function f(x) =1/2 x - 2. Click on the graph until the correct graph appears.
Answer with explanation:
The given function is
[tex]y=\frac{x}{2}-2[/tex]
→2 y = x-4
→x -2 y -4=0
The function represents Linear function.
To plot the linear function on x y plane, we will write function in the form of slope intercept form, which is as follows
[tex]\frac{x}{a}+\frac{y}{b}=1\\\\\frac{x}{4}+\frac{y}{-2}=1[/tex]
So, the graph will cut X axis at , (4,0) and (0, -2).
To draw a unique line we need two points . The unique line will pass through (4,0) and (0, -2).
I don’t understand part B. Can someone please help me?!
Picture included
Jenny Spent $200 at a gift shop. She bought 3 rings for $21 each and spent the rest on 4 equally priced bracelets. How much does each bracelet cost?
How many ways are there to choose a dozen donuts from 21 varieties?
Ethan buys a video game on sale. If the video game usually costs $39.99, and it was on sale for 20% off, how much did Ethan pay?
Ethan paid $31.99 for the video game on sale.
How to calculate the discount?To calculate the discount that Ethan obtained in the price of his video game, we do the following operations:
We divide the total price by one hundred and multiply the result by the discount, in this case 20.
$39,99 ÷ 100 = $0,3999$0,3999 × 20 = $7,998Subsequently, we subtract the result of the previous operation (value of the discount) from the total value of the video game.
$39,99 - $7,998 = $31,992
According to the above, the value that Ethan paid for the video game was $31,992
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Answer: $31.99
Step-by-step explanation:
$39,99 ÷ 100 = $0,3999
$0,3999 × 20 = $7,998
$39,99 - $7,998 = $31,992
Solve the below system of equations using the best method. Please describe the method used [substitution, graphing, elimination, etc], and give your answer in the form (x,y).
y = 2x + 3
y = -x - 5
The length of a rectangle is 4 inches greater than the width. The perimeter of the rectangle is 24 inches. What are the dimensions of the rectangle?
length = 12 in.; width = 8 in.
length = 8 in.; width = 6 in.
length = 8 in.; width = 4 in
length = 6 in.; width = 2 in.
By using the formula for the perimeter of a rectangle and substitution, it is determined that the dimensions of the rectangle are 6 inches for the length and 2 inches for the width.
Explanation:This is a traditional problem in algebra that we can solve using known formulas and principles.
The perimeter of a rectangle is calculated using the formula 2(l+w), where 'l' stands for length and 'w' stands for width. In this problem, we know the perimeter (P) is 24 inches, and we know the length (l) is the width (w) + 4 inches.
We can set up and solve an equation using these facts. Replace 'l' in the equation with '(w + 4)' and solve for 'w': 2[(w + 4) + w] = 24, which simplifies to 2w + 8 = 12, and finally, w = 2.
Having found 'w', we can find 'l' by substituting 'w' in our equation of 'l', l = w + 4 = 2 + 4 = 6.
Therefore, the length is 6 inches and the width is 2 inches.
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If two standard six-sided dice are tossed, what is the probability that a 5 is rolled on at least one of the two dice? express your answer as a common fraction.
1/12 is the probability that a 5 is rolled on at least one of the two dice
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
Given that two standard six-sided dice are tossed,
We need to find the probability that a 5 is rolled on at least one of the two dice.
When we roll two dice there is a possibiltiy of 36 outcomes.
In these 36 outcomes atleast one of the dice should show 5.
There are 36 possible rolls
(5, x), (x, 5) and (5, 5) are the possible outcomes with 5 on any of the dice.
x represents any number from one to five.
So the probability that a 5 is rolled on at least one of the two dice is 3/36
which is equal to 1/12.
Hence, 1/12 is the probability that a 5 is rolled on at least one of the two dice
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What is the x and y intercept of the line -7/5x-4y=7