Answer:
3 students
Step-by-step explanation:
Two ways you can do this:
1. If you have a graphic calculator you can find the normal distribution function and enter the following values to get the probability of a student finished in less than 5 minutes:
Lower: 0
Upper: 5
Standard Deviation: 1
Mean: 6
This gives a probability of: 0.1587 (4.d.p)
2. You can use the formula and find the probability using the Z-table.
[tex]Z = \frac{x - \mu}{\sigma}[/tex]
Substitute known values:
[tex]Z = \frac{5 - 6}{1}\\Z = -1/1 = -1\\[/tex]
It is one standard deviation to the left of the mean,.
Look up on Z-score table and we get: 0.1587 (4.d.p)
Now we need to find expected number. We do this by multiplying the probability by the amount of people:
0.1587 x x19 = 3.0153 rounded to 3 students.
Hope this helped!
Answer:
3
Step-by-step explanation:
Plzz help i been asking this question for way too long
Step-by-step explanation:
we know that that the stickers are 1 inch long and 1 inch wide.
We also know that 1x1=1
There are also 3 stickers.
1x3=3
3 is your area.
Jasmine set up counters at four major intersections, keeping track of how many cars passed by each on a daily basis over the course of several days. Her findings are shown in the chart below. A graph titled Cars Passing Major Intersections has day on the x-axis and number of cars (times 10) on the y-axis. Huffman has 1 increase, Price has 3 increases, Mason has 4 increases, and Pearl has 3 increases. Which intersection had the greatest number of increases in traffic from day to day? a. Huffman b. Price c. Mason d. Pearl
ITS C
Answer:
c is correct i tested it
Step-by-step explanation:
Answer:
C. Masonedge ⬇️
Please help with this question
Answer:
Point G and Point B
Step-by-step explanation:
The quadrant on the top right is quadrant 1 and the quadrant on the top left is quadrant 2. The quadrant on the bottom right is quadrant 4 and the quadrant on the bottom left is quadrant 3.
somebody help me please
Answer:
B. 3^(2/3)
Step-by-step explanation:
What is 95% as a whole number
Answer:
95
Step-by-step explanation:
Answer:
95% of what? this question is incomplete.
What’s the answer I keep trying my best, but I still can’t get it !!!
Answer:
I think it is 22000 bc u place the 10 in the x spot and multiply.
Find the 64th term of the arithmetic sequence 29, 38, 47, ...
Answer:
a₆₄ = 596Step-by-step explanation:
The equation of the nth term of the arithmetic sequence is: [tex]a_n =a_1+d(n-1)[/tex]
d = 38 - 29 = 9
a₁ = 29
Therefore:
[tex]a_{64} =29+9(64-1)\\\\a_{64} =29+9\cdot63\\\\a_{64}=596[/tex]
solve for x, Round to the nearest thenth. x,9.2,16.5
I will give Branliest
Are these polygons ABCD & EFGH congruent, similar or neither
No guessing
Solve for g I need help please and thank:)
Answer:
g = E/2h
Step-by-step explanation:
E = 2gh
g = E/2h
An investor puts $800 in an account that pays 2% interest compounded annually. Find the account balance after 6 years.
Answer:
$900.929
Step-by-step explanation:
hope it helps you
please mark me as brainlist
Use the long division method to find the result when 4x^3+23x^2 + 21x + 30 is
divided by x +5.
Answer:
A polynomial is an algebraic expression made up of two or more terms subtracted, added, or multiplied. A polynomial can contain coefficients, variables, exponents, constants, and operators such as addition and subtraction.
It is also important to note that, a polynomial can’t have fractional or negative exponents. Examples of polynomials are; 3y2 + 2x + 5, x3 + 2 x 2 − 9 x – 4, 10 x 3 + 5 x + y, 4x2 – 5x + 7) etc. Like number, polynomials can undergo addition, subtraction, multiplication, and division.
We saw addition, subtraction, multiplication, and long division of polynomials previously.
hope it helps make brainlliest ty
Suppose a study estimated that 61% of the residents of a community (with an
error range of 18 percentage points at 95% confidence) favor replacing the
playground equipment. Which of the following percentages of the
community's residents may favor replacing the playground equipment?
A. 82%
B. 54%
C. 72%
D. 95%
Finding the confidence interval, it is found that the percentages of residents that may favor replacing the equipment is be given by:
B. 54%.
What is a confidence interval?The interval is given by the estimate plus/minus the margin of error. The range is twice the margin of error.
In this problem, we have that:
The estimate is of 61%.Since the range is of 18%, the margin of error is of 9%.Hence the interval is given by:
(61% - 9%, 61% + 9%) = (52%, 70%).
Each of the values in the interval can be the percentage, hence option B is correct.
More can be learned about confidence intervals at https://brainly.com/question/15712887
#SPJ1
12% of 72 is what number?
Answer:
8.64
Step-by-step explanation:
12% = 0.12
72(0.12) = 8.64
Find the volume of a right circular cone that has a height of 16 m and a base with a
circumference of 14.7 m. Round your answer to the nearest tenth of a cubic meter.
Answer:
Step-by-step explanation:
Start earning $78/hourly for working online from your home for few hours each day... Get regular payment on a weekly basis... All you need is a computer, internet connection and a little free time..... Read more here... www.Nifty2.com
Triangle ABC has vertices with coordinates -1,-1 , 4,0 and 0,4 Prove that ABC is an isosceles triangle but not a right triangle.
Probability is a measure of
Answer:
uncertainty.
Step-by-step explanation:
It measures the uncertainty and likelihood of something to happen to determine how likely something is to happen, which in other words, is a measure of how uncertain you can be about something.
Marla has 1\2 of a pound of candy. She equally distributes the candy into 4 bags. How much candy will go in each bag?
Answer:
1/8 or 8
Step-by-step explanation:
The volume of a cone is 88 pi cubic feet. Its height is 8 feet. Fatima is finding the radius of the cone. Her work is shown below.
V = one-third pi r squared h. Step 1: 88 pi = one-third pi r squared (8). Step 2: 88 pi = StartFraction 8 Over 3 EndFraction pi r squared. Step 3: StartFraction 8 Over 3 EndFraction (88) = r squared. Step 4: 234.7 = r squared. Step 5: 15.3 = r.
What is Fatima’s error?
In step 4, Fatima did not find the correct value of StartFraction 8 Over 3 EndFraction (88).
In step 2, Fatima should not have multiplied One-third and 8.
In step 3, Fatima did not multiply 88 by the reciprocal of StartFraction 8 Over 3 EndFraction.
In step 1, Fatima did not substitute the correct value for the height in the formula.
Answer:
c
did it on edg:D
mark brainliest please need it for a new rank
Answer:
C or "In step 3, Fatima did not multiply 88 by the reciprocal of 8/3"
Step-by-step explanation:
Can the sides of a triangle have lengths of 3, 8, and 3
Explain??
Answer:
no
Step-by-step explanation:
the triangle rule is the sum of any two sides of a triangle MUST be larger than the third, in this case 3+8 > 3, but 3+3 < 8 so it cannot be a triangle
Answer:
An isosceles triangle has two side lengths that are the same and one side length that is different. Soo... basically to sum it up in a word, yep.
Step-by-step explanation:
Easy math question hurry up pls it 20 points
Answer and Step-by-step explanation:
1.
c(1) = -0.6
c(n) = c(n - 1) × -5
Those are the answers.
#teamtrees #PAW (Plant And Water)
can someone please help me with this?
a + b = 10 a - b = 2
A) a = 5, b = 5
B) a = 2, b = 8
C) a = 6, b = 4 Eliminate
D) a = 3, b = 7
Answer:
Step-by-step explanation:
Answer:
Your answer would be C
6 (A) + 4 (B) = 10
6 (A) - 4 (B) = 2
please help me!! 8th grade math, Pythagorean Theorem 19 pts!
Answer:
do 70 divded by two and that is 35. and then 15^2 (squared) + 35^2 (squared) and then whatever that equals but the square root around it and that is your answer.
Step-by-step explanation:
Convert 60% into a decimal and a Fraction(Simplify)
Decimal
Fraction
Answer:
decimal: .6
fraction: 3/5
a package shaped like a cube has an edge that is 28 cm long. how much space is available to pack inside the box?
Answer:
28 x 28 x 28 = 21,952 cm³
Step-by-step explanation:
Answer:21,952cm
Step-by-step explanation:
Jill had 2 apples. Addy gave Jill 5 more apples. How many apples does Jill have altogether? Mark, you brainlieest if correct!
Answer:
its 7 apples
Step-by-step explanation:
Brainliest pls
Answer:
its......wait somebody answered it already :(
How big is a normal Pp? Also look down
Answer:
i can see the image is not there
Step-by-step explanation:
Answer:
whoa sus
Step-by-step explanation:
what is (4315421 X 5378156031 X 3517905631) X 0 Plz help!
Answer:
zero ...I know you just sharing the points.
The 30 female nurses at Memorial Medical Center make up 15% of the entire Med Center personnel. What is the total number of employees at Memorial Medical Center?
Answer:
200 employees
Step-by-step explanation:
The 30 female nurses at Memorial Medical Center make up 15% of the entire Med Center personnel. What is the total number of employees at Memorial Medical Center?
Let the total number of employees = x
Our Equation=
15% of x = 30 female nurses
15/100 × x = 30
15x /100 = 30
Cross Multiply
15x = 100 × 30
x = 3000/15
x = 200
Number of employees = 200
