Answer:
Thus, the probability that exactly 4 don't grow is 0.1361 or 13.61%
Step-by-step explanation:
Binomial Distribution
Consider a random experience that has only two possible outcomes: Success or Failure. Let's call p to the probability that the event has a successful outcome and q to the failure outcome.
It follows that p+q=1, or q=1-p.
Now repeat the random experience n times. We want to calculate the probability of getting x successful outcomes. This can be done with the Binomial Distribution formula:
[tex]\displaystyle P_{x} = {n \choose x}\cdot p^{x}\cdot q^{n-x}[/tex]
Where :
[tex]\displaystyle {n \choose x}[/tex]
Is the number of combinations, calcula ted as follows:
[tex]\displaystyle {n \choose x} =_nC_x=\frac{n !}{x ! (n-x) !}[/tex]
A planted seed has a 70% chance of growing into a healthy plant. The successful outcome has p=0.7 and q=0.3.
The experience is repeated n=8 times. We want to calculate the probability of having 4 failures (not growing seeds) or x=4 successes.
Apply the formula:
[tex]\displaystyle P_{4} = {8 \choose 4}\cdot 0.7^{4}\cdot 0.3^{8-4}[/tex]
[tex]\displaystyle P_{4} = 70\cdot 0.7^{4}\cdot 0.3^{4}[/tex]
[tex]\displaystyle P_{4} = 0.1361[/tex]
Thus, the probability that exactly 4 don't grow is 0.1361 or 13.61%
A school paid $31.25 for each calculator.
a. If the school bought x calculators, how much did they pay?
b. The school spent $500 on calculators. How many did the school buy?
Answer:
16
Step-by-step explanation:
If he school bought 16 calculators they would pay 500 dollars because if you will divide 500 by 31.25 you will get an answer of 16
Giving brainliest for the question if answer correct need answer ASAP
Find each union or intersection. Let X = {1, 4, 9}, Y = {x | x is an odd whole number less than 10}, and Z = {2, 4, 6, 8}.
X U Y
X U Z
X n Y
X n Z
Y n Z
Answer:
X ∪ Y = 1, 3, 4, 5, 7, 9,
X ∪ Z = 1, 2, 4, 6, 8, 9
X ∩ Y = 1, 9
X ∩ Z = 4
Y ∩ Z = ∅
Explanation:
X = [1, 4, 9]
Y = [1, 3, 5, 7, 9]
Z = [2, 4, 6, 8,]
your cell bill for the last month was $148.50 and you think this seems high. If you know that you talked on your phone for 221 minutes last month, how much should your bill have been?
Answer:
should have been around 72
Step-by-step explanation:
dollars
Answer for points:
after Muhamad's death, Islam spread throughout the world mostly due to:
A: Muslim pilgrims teaching their beliefs to others,
B: Muslim empires conquering new territories,
C: Sunni and Shiite leaders agreeing to untie,
D: Christian leaders converting to Islam.
Answer: THE ANWSER IS B
Please help with number 3
9514 1404 393
Answer:
13/8
Step-by-step explanation:
Put the numbers in the formula and do the arithmetic.
[tex]\dfrac{4\dfrac{2}{3}-\left(-1\dfrac{5}{6}\right)}{-7\dfrac{3}{4}-(-11.75)}=\dfrac{6.5}{4}=\boxed{\dfrac{13}{8}}[/tex]
One should continue to monitor his or her goals and adjust his or her plan for achieving them when it is necessary.
Please select the best answer from the choices provided
True or false
Answer:
true
Step-by-step explanation:
Solve the equation for all values of x in simplest form (x + 3)^2 = -16
Answer:
x = -7 or x = 1
Step-by-step explanation:
Given expression:
(x + 3)² = -16
Problem;
Solve for x;
Solution:
To solve for x; we use the factorization method;
Take -16 to the left of the equation;
(x + 3)² = -16
(x + 3)² + 16 = 0
(x+ 3)² + 4² = 0
if x² + y² = (x + y)(x - y)
So;
(x + 3 + 4) (x + 3 - 4) = 0
(x + 7)(x - 1) = 0
x + 7 = 0 or x - 1 = 0
x = -7 or x = 1
simplify 4/7 diveded by 3/-8
Answer:
- 32/21 or - 1 11/21
Step-by-step explanation:
Erica had $1,200 dollar in her bank account and deposited another $300 into the account. By what percent did the amount of the money in her bank account increase?
Answer: 25%
Step-by-step explanation:
-4 1/5+3 2/3+ -1 2/5
Answer:
-1.9
Step-by-step explanation:
I rounded it to the tenth
WILL GIVE BRAINLIEST! What is the equation of the line passing through the points (4, 7) and (7, 13) in slope-intercept form?
Answer:
y = 2x - 1
Step-by-step explanation:
To get slope:
m = y2 - y1 / x2 - x1
m = 13 - 7 / 7 - 4
m = 6 / 3
m = 2
To get y-intercept:
y = mx + b
13 = 2(7) + b
13 = 14 + b
13 - 14 = b
-1 = b
Put it together:
y = 2x - 1
The average number of points a basketball team scored for
three games was 63 points. In two games, they scored the same number of points,
which was 6 points more than they scored in the third game. Write and solve an
equation to find the number of points they scored in each game.
what is 2208 divided by 96?
23............hope this helps
A grocery store sells an 18 ounce container of peanut butter for $3.28. What is the cost per ounce (unit price)?
Answer:
18 cents
Step-by-step explanation:
3.28/18 = .18
Solve the 'equation. Then check your solution.
(2 1/7)p=-3
Answer:
p= -7/5
Step-by-step explanation:
7x10x10x10x10=
using exponent
7(10^4)
Hope this helps :)
Answer:
70,000
Step-by-step explanation:
100x100=10000x7=70000
Katrina drinks 0.5 gallons of water per say. Which expression shows how to find the number of cups of water she drinks in a week?
a flying squirrel jumped from a tree 11 feet in the air at an initial velocity
Answer:
A flying squirrel jumped from a tree 11 feet in the air at an initial velocity of 9 feet per second. The equation h=-2t^2+9t-11 models his jump where h is height in feet and t is time in seconds
Step-by-step explanation:
The problem
divided by
appeared on a recent test. The problem was done incorrectly. Identify one error that the student made. Identify an additional error, different from your answer in Part A, that the student made.
Part C:
Write a complete sentence to explain how the two errors can be corrected.
Answer:
Step-by-step explanation:
In the given division, when 24.725 is divided by 215,
Step 1 is the wrong step.
Quotient in first step will be 0.1 .
Part C.
215) 24.725 (0.115
215
322
215
1075
1075
0
Therefore, the correct way to divide should be as agove.
Quotient after division should be 0.115.
.
Jamie went shopping for party snacks. He bought 3 bags of chips for $4.00 each, 5 bottles of soda for $2.00 each and an ice cream cake for $20.00. How much did he spend altogether?
Choose the expression that is a correct translation of the problem.
(3 x 4) x (5 x 2) + 20
(3 + 4) + (5 + 2) + 20
(3 x 4) + (5 x 2) + 20
(3 x 4) + (5 x 2) x 20
Answer:
C (3x4) + (5x2) + 20
Step-by-step explanation:
3 things that cost 4 dollars. 5 things that cost 2 dollars and one that cost 20.
I need help, anyone please.
Answer:
Its B
Step-by-step explanation:
Linear funtions need 1 x value for every y value so its B
Perry took a total of 12 quizzes over the course of 6 weeks. After attending 10 weeks of
school this quarter, how many quizzes will Perry have taken in total? Solve using unit rates.
Answer:
so perry takes about 2 quizzes a week ok well all we have to do is multiply 2×10=...20 so perry takes about 20 quizzes in ten weeks
find the distance between (-6,0) and (-9,-4)
Answer:
5 units
Step-by-step explanation:
d=
[tex] \sqrt{(x2 - x1}^{2} ) + \sqrt{(y2 - y1) {}^{2} } [/tex]
Which of the following ordered pairs is a solution to the inequality y>−2x+7?
Answer: x>-1/2y+7/2
Step-by-step explanation:
Write the ratio:
10
to
68
as a fraction in lowest terms.
Answer:
5/34
Step-by-step explanation:
change 10:68 into 10/68, then divide by 2/2 to get 5/34.
Midpoint of the segment whose endpoints are (6,9) and (-4,16)
Answer:
(4,5)
Step-by-step explanation:
(xa+xb/2,ya+yb/2)
(0+8/2,2+8/2)
(8/2,10/2)
(4,5)
hope this helps
How many cyclists are at least 26 years old?
Answer:
15
Step-by-step explanation:
The highest temperature recorded in the town of Westgate this summer was 93°F. Last winter, the lowest temperature recorded was -13°F. Find the difference between these two extreme temperatures.
Answer:
80
Step-by-step explanation:
Help a nikah out plz lol thx for the help
Answer:
18
Step-by-step explanation:
trapezoid area:
[tex]A=\frac{1}{2} (b_1+b_1)(h)\\A=\frac{1}{2} (4+8)(3)\\A=18[/tex]
HELP WILL MARK BRAINLIEST PLEASE GIVE EXPLANATION
Answer:
P1P2 = P1P3 = 2√2P2P3 = 4isosceles right triangle (both)Step-by-step explanation:
The length of a side can be found using the distance formula:
d = √((x2 -x1)^2 +(y2 -y2)^2)
For P1P2, this gives ...
d = √((0-(-2))^2 +(1-(-1))^2) = √(4+4) = √8
P1P2 = 2√2
__
The same ∆x and ∆y apply to P1P3, so we know ...
P1P3 = 2√2
__
The lengths of P1P2 and P1P3 are the same, so the triangle is isosceles.
__
The length of P2P3 can be found by subtracting the y-coordinates:
P2P3 = 1 -(-3)
P2P3 = 4
__
We note that the slope of P1P2 is 2/2 = 1, and the slope of P1P3 is -2/2 = -1. The product of these slopes is (1)(-1) = -1, so we know those lines are perpendicular. The triangle is a right triangle.