You can approximate the probability using the standard normal distribution table by looking up the closest values for Φ(2) and Φ(1).
To calculate the probability P(1 < z < 2) for a standard normal random variable, we can use the cumulative distribution function (CDF) of the standard normal distribution.
The CDF gives us the probability that a standard normal random variable is less than or equal to a given value. We can use this information to calculate the probability between two values.
Let's denote the CDF of the standard normal distribution as Φ(z). The probability P(1 < z < 2) can be calculated as follows:
P(1 < z < 2) = Φ(2) - Φ(1)
To calculate this, we need to look up the values of Φ(2) and Φ(1) from a standard normal distribution table or use a calculator/computer software. However, since I don't have access to real-time computations in this environment, I am unable to provide the exact numerical value.
But you can use statistical software or online calculators to find the precise value. Alternatively, you can approximate the probability using the standard normal distribution table by looking up the closest values for Φ(2) and Φ(1).
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Isabelle worked 50 hours over the past two weeks, and she gets paid by the hour during the first week of the two weeks. She worked 30 hours and get paid $285.00. how much did she get paid during the week of the second week of the two weeks span?
A $114.00
B$190.00
C$427.50
D$475.50
Answer:
B- $190.00
Step-by-step explanation:
if you divide $285 by 30 you find out she earns $9.50 per hou. And if you multiply 9.5 times the remaining hours (20) you get $190
Answer:
B. $190.00
Step-by-step explanation:
Correct on edg. 2020
Barry makes $280 dollars for tutoring 20 hours. How much
does he make per hour? (Unit Rate)
Answer: 14
Step-by-step explanation:
Answer: 8,400
Step-by-step explanation:
Which number does not belong 100 , 42,35,50
Answer:
42
Step-by-step explanation:
lettme know if it is wrong, but i got 42 because all the other numbers are divisibul by 5, and 42 is not...
Answer:
42 and 35
Step-by-step explanation:
Ok, let's work this out. So we just have to figure out what numbers are divisible by 100.
Ok so 42, 84, 128. NOPE
35, 70, 105 NOPE
50, 100 YES.
Simplify - 60(x^3-8)
The distribution of assembly times required to assemble a certain smartphone is approximately normal with
mean 46 minutes and standard deviation 0.6 minute. Of the following, which is closest to the percentage of
assembly times between 4 and 5 minutes?
Answer:
59%
Step-by-step explanation:
I assume you mean 4.6 minutes.
Calculate the z-scores.
z = (x − μ) / σ
z₁ = (4 − 4.6) / 0.6
z₁ = -1
z₂ = (5 − 4.6) / 0.6
z₂ = 0.67
Use a calculator or chart to find the probability.
P(-1 < Z < 0.67) = P(Z < 0.67) − P(Z < -1)
P(-1 < Z < 0.67) = 0.7486 − 0.1587
P(-1 < Z < 0.67) = 0.5899
The probability is approximately 59%.
Three toed sloths move slowly using as littile energy as Possible.They sleep,Eat,and evening give birth upside down.A baby sloth may cling to its mother for as much as 36Weeks after being born.A sloth usually Sleeps about 101 Hours per week.How much time is the sloth sleep?
Answer:
3636 hours
Step-by-step explanation:
The calculation of duration of baby sloth sleep is shown below:-
A three-toes sloth usually sleeps is
= 101 hours per week.
Number of week is
= 36
Since we need to compute the duration of baby sloth's sleep so we need to multiply the number of weeks with number of hours per week
Therefore,
The duration of baby sloth's sleep in 36 weeks
= 36 x 101
= 3636 hours
what is the area of a square who’s sides are (x+1)
Answer:
the area of the square is x^2 +2x +1
Answer:
ffiydfd7didiyfkhfoyfiyydid
Step-by-step explanation:
ifofoyfkycohfhguflfoycoyciyiy
I don’t know what the answer is
Answer:
the answer is B, [tex]\frac{3}{4}[/tex] foot.
Step-by-step explanation:
there are 3 in the [tex]\frac{1}{4}[/tex] section
Which of the following is equivalent to 4x – 3y = 15?
Answer:
A
Step-by-step explanation:
PLEASE HELP ASAP Idk what the answer is
Answer:
1.5
Step-by-step explanation:
Answer:
vertical line passing through x=3.5 at the x axis
Step-by-step explanation:
the equation of the line has x as a constant independent of y, so for all values of y x is equals to the constant which is 3.5 and thats the graph that will result
I’m doing number lines and I just want to be sure.
Does 2/4 come after 2/3 on a number line?
Or does 3/3 come after 2/3?
<—————>
|. |. |
1/3 2/3. 3/3?
___
Answer:
2/4 comes to the left of 2/3. 3/3 is to the right of 2/3
Step-by-step explanation:
In a number line, it goes left to right (least to greatest)
Which number line represents the solutions to 1-2x1 = 4?
Answer:
see below
Step-by-step explanation:
|-2x| = 4
Absolute value equations have two solutions, one positive and one negative
-2x = 4 and -2x = -4
Divide each side by -2
-2x/-2 = 4/-2 -2x/-2 = -4/-2
x = -2 x = 2
A scientist needs to make 2 liters of saline solution (salt water), in which the salt level must be at 15% concentration (meaning 15% of the water is salt). Unfortunately, the scientist only has two types of saline solution in his possession. He has saline solution with a 10% concentration level and saline solution with a 35% concentration level.
Answer:
We need 1.6 liters of the 10 % concentration level and saline solution and 0.4 liters of the 35 % concentration level and saline solution.
Step-by-step explanation:
Let V₁ be the volume of the 10% concentration saline solution required and V₂ be the volume of 35% concentration saline solution required.
Since mass = concentration × volume, the total mass of the 10% and 35% volume saline solution equal the mass of the 2 liter 15% volume solution.
So, 0.1V₁ + 0.35V₂ = 2 × 0.15
0.1V₁ + 0.35V₂ = 0.3 (1)
Also, the total volume of the 15 % solution must equal 2 liters. So,
V₁ + V₂ = 2 (2)
V₁ = 2 - V₂ (3)
putting equation (3) into equation (1), we have
0.1(2 - V₂) + 0.35V₂ = 0.3
0.2 - 0.1V₂ + 0.35V₂ = 0.3
we now collect terms, so
- 0.1V₂ + 0.35V₂ = 0.3 - 0.2
0.25V₂ = 0.1
we now divide through by 0.25, so
V₂ = 0.1/0.25
V₂ = 0.4 liters
we now put V₂ into (3), we have,
V₁ = 2 - 0.4
V₁ = 1.6 liters
So, we need 1.6 liters of the 10 % concentration level and saline solution and 0.4 liters of the 35 % concentration level and saline solution.
2x+3x-20+90 combine like trems
Answer:
5x - 110 =
Step-by-step explanation:
2x + 3x = 5x
90 + 20 = 110
5x - 110
Jayden created a monthly budget based on his net income. If he earns $3,080 each month, how much money can he allocate to eating at restaurants?
Answer:
$180
Step-by-step explanation:
First, add up all the money already allocated in the categories.
1200+400+300+500+400+25+75=2900
Then, take 3080 subtracted by the total.
3080-2900=180
Don't forget to add the $ sign in the end
Answer:
180 plzmark me brailest
Step-by-step explanation:
Which ones are functions and which ones are NOT functions?
Answer:
only a is a function because its the only one that doesn't have a repeating x value
How to write a line equation from two points. The question is included in the image below. ;) Please and thank you.
Edit: I thought 50 points was enough. Really though guys, it's easy and I just want some opinions for a project I'm doing.
Answer:
but ohie gbonyo onu, kwashia buulu buulu. wa yE ne nim tisEE abriwa bi, etomE lakpaa no sia. me nyE mi de fofuo nume ke.onye s)))
Step-by-step explanation:
the sentense above after every full stop is written in another language, identifu them
Answer:
y = -4x + 2Step-by-step explanation:
GivenPoints (2, -6) and (-1, 6)To findEquation of the line passing through the given pointsSolutionUsing slope-intercept form:
y = mx + b1. Finding the slope using slope formula:
m = (y2 - y1)/(x2 - x1) = (6 - (-6))/(-1 - 2) = 12/(-3) = -42. Finding y-intercept using the first point, x = 2, y = -6:
-6 = (-4)*(2) + b-6 = -8 + bb = -6 + 8b = 2So the equation is:
y = -4x + 2It is given that f(x) = 2x2 - 12x + 10.
(i) Find the value of a, of b and of c for which f(x) = a(x + b)2 +c.
Answer:
a = 2, b = - 3, c = - 8
Step-by-step explanation:
Expand f(x) = a(x + b)² + c and compare coefficients of like terms, that is
a(x + b)² + c ← expand (x + b)² using FOIL
= a(x² + 2bx + b²) + c ← distribute parenthesis by a
= ax² + 2abx + ab² + c
Compare like terms with f(x) = 2x² - 12x + 10
Compare coefficients x² term
a = 2
Compare coefficients of x- term
2ab = - 12, substitute a = 2
2(2)b = - 12
4b = - 12 ( divide both sides by 4 )
b = - 3
Compare constant term
ab² + c = 10 , substitute a = 2, b = - 3
2(- 3)² + c = 10
18 + c = 10 ( subtract 18 from both sides )
c = - 8
Then a = 2, b = - 3, c = - 8
essica and her sister, Nicole, need money for lunch. Jessica receives $50 and buys lunches at the high school for $2.50 each and Nicole receives $40 and buy lunches at the elementary school for $1.50 each. How many lunches do they have to buy for the two girls to have the same amount of money in their account?
$50 - $1.50x = $40 - $2.50x
$50 - $1.50x = $40 - $2.50x
$50 - $2.50x = $40 - $1.50x
$50 - $2.50x = $40 - $1.50x
$50 + $1.50x = $40 + $2.50x
$50 + $1.50x = $40 + $2.50x
$50 + $2.50x = $40 + $1.50x
Answer: $50 - $2.50x = $40 - $1.50x
Step-by-step explanation:
What does it mean for a fraction to be in simplest form?
A. The numerator and denominator share a common factor greater than 1.
B. The numerator and denominator share a common factor less than 1.
C. The numerator and denominator have no common factors other than 1.
Answer:
The answer is c.
Step-by-step explanation:
If you divide the top number, then you have to divide the bottom number with the same number, and when you can't do that anymore, they have to be divided by 1, and they will stay the same.
Which one is a function?
Answer:
B because x doesn't repeat there
a function is when x does not repeat
One week, Madeline earned $61.20 at'her job when she worked for 4 hours. If she is
paid the same hourly wage, how many hours would she have to work the next week to
earn $214.20?
Answer:
16 Hours
Step-by-step explanation:
She would need to work 16 hours because 61.20 x 4 = 244.80. And 61.20 x 3 = 183.60. Correct me if I'm wrong, Thank You!
Next week she had to work for 14 hours to earn $214.20.
What is proportionality?the property of having suitable proportions in terms of size, number, degree, harshness, etc.: If a defensive action against an unfair attack results in the destruction that contravenes the proportionality criterion, it may even go far beyond a justifiable defense.
Given, One week, Madeline earned $61.20 at her job when she worked for 4 hours.
So,
Her salary per hour is = 61.20/4$
Her salary per hour is = 15.3
Since she earned $214.20 for the next week
Thus,
The number of hours she worked = 214.20/15.3
The number of hours she worked = 14
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x³+y³+z³=8 plzzzzz first person gets brainlyest
Answer:
x= 1, y=-1 and z = 2
Step-by-step explanation:
3/4x-4=5+x
Helppppp meeeeee
Answer:
x = -36
Step-by-step explanation:
3/4x-4=5+x
Subtract 3/4x from each side
3/4x - 3/4x-4=5+x -3/4x
3/4x - 3/4x-4=5+4/4x -3/4x
-4 = 5 + 1/4x
Subtract 5 from each side
-4-5 = 1/4x
-9 = 1/4x
Multiply each side by 4
4 * -9 =1/4x*4
-36 =x
Find the equation in the line shown please
Is for today
Step-by-step explanation:
i hope i have been useful buddy.
good luck ♥️♥️♥️♥️♥️.
9/10 divided by 3/5
please helppp
Answer:
=1.5
Step-by-step explanation:
Brad received 30% of the votes for class president. If 18 students voted for Brad, how many students are in the class?
Answer:
56 because there cant be 55 children and 80 percent of one sorry if i'm wrong
Step-by-step explanation:
3x18= 54
18x10%=1.8
54+1.8=55.8
Rounded to 56
Find the reminder
when x101 is divided
by X-1
Answer: -101
Step-by-step explanation:
1.) Set up the equation like a division problem.
2 .) Dividing X by itself cancels it out.
3 .) Divide 101/ -1.
Factor completely 9r^3-72r^2
Answer:
9r²(r - 8)
Step-by-step explanation:
Step 1: Write expression
9r³ - 72r²
Step 2: Factor out 9
9(r³ - 8r²)
Step 3: Factor out r²
9r²(r - 8)
Plz help me
Thank you.
Answer:
A
Step-by-step explanation:
Answer:
1) A 2) 5
Step-by-step explanation:
5+2.75*5=18.75
One more stop would put her 50 cents over.
