Answer:
The probability is [tex]P(X = 2)= 0.0729[/tex]
Step-by-step explanation:
From the question we are told that
The percentage that the donor is compactible is p = 0.10
The sample size is n = 5
Generally the probability that the donor is not compactible is
[tex]q = 1- p[/tex]
=> [tex]q = 1- 0.10 [/tex]
=> [tex]q = 0.90 [/tex]
Generally the probability that the exactly 2 of the selected donors is compatible mathematically represented as
[tex]P(X = 2)= \ ^{5}C_2 * p^2 * q^{5-2}[/tex]
Here C standards for combination
=> [tex]P(X = 2)= \ 10 * 0.10^2 * 0.90 ^{5-2}[/tex]
=> [tex]P(X = 2)= 0.0729[/tex]
(81x^2)^1/2
Simplify.
Answer:
9x
Step-by-step explanation:
For each heart there are 2 stars. Which model shows this relationship? I NEED HELPPP ILL MAKE U THE BRIAN THINFG
Answer:
D
Step-by-step explanation:
Just came from the quiz
Answer fast please
Drag and drop each number to its correct position on the number line.
Answer:
-1 is the first one to the left of the 0
-5 is the 5th one to the left of the 0
2 is the 2nd one to the right of the 0
4 is the 4th one to the right of the 0
Step-by-step explanation:
hope this helped!
it would be cool if you gave me the brainliest.
I need help for number 3
Answer: 3/2
Step-by-step explanation: 24 ÷ 2² + 8 (3/2) = 3/2
Answer:
i think this is the ans
Step-by-step explanation:
plezz mark brainliest
Round 683,492 to the nearest hundred thousand.
Answer:
700,000
Step-by-step explanation:
you need to look at the ten thousands and look at the number if it is past 5 you round up.
describe the sequence of translation used to move figure 1 onto figure 2
Four plumbers each charge a flat fee plus an hourly rate for repair visits. The table shows their total costs for repairs that required various amounts of time. Which plumber charges the greatest hourly rate?
Answer: Took the test
Step-by-step explanation:
Jose has 7 used stamps for every 4 new stamps. If he has 28 new stamps, how many used stamps does he have?
Answer:
21
Step-by-step explanation:
Find the perimeter of the figure
Answer:
20 m
Step-by-step explanation:
For the perimeter, add all the sides together:
4 + 6 + 3 + 5 + 2 = 20 m
Answer:
Step-by-step explanation: Perimeter of figure is = sum of all sides
= 6m+3m+5m+2m+4m
= 9m+7m+4m
= 16m+4m
= 20m
what is polar form in maths term ??
Answer:
The polar form of a complex number is another way to represent a complex number. The form z=a+bi is called the rectangular coordinate form of a complex number. The horizontal axis is the real axis and the vertical axis is the imaginary axis.
Gabi has 7 bags of apples with x apples each. a. Write an expression to represent the total number of apples.
Answer:
7x
Step-by-step explanation:
HELP ASAP TAKING A TEST I DONT KNOW HOW TO DO THESE I HAVE 1 HOUR PLEASE!
Answer:
diagonal is 11.14 cm
Step-by-step explanation:
We start by writing the equation for the width (w) in terms of the length (L):
w = 2 L - 8
from the area = w * L = 62
we replace w in it: w * L = (2 L -8) * L = 62
2 L^2 - 8 L = 62
2 L^2 - 8 L - 62 = 0
extract 2 common factor:
2 (L^2 - 4 L - 31) = 0
Using quadratic formula we get:
[tex]L=\frac{4+/-\sqrt{4^2-4(1)(-31)} }{2} \\L=\frac{4+/-\sqrt{140} }{2}\\L=7.916\\or\\L=-3.916[/tex]
So, we pick the positive answer L = 7.916 cm
Then we now know the with of the rectangle as well:
w = 2 * L - 8 = 2 * 7.916 - 8 = 7.832 cm
Now we estimate the diagonal of the rectangle using the Pythagorean theorem:
[tex]diag=\sqrt{7.916^2+7.832^2}\approx11.1356\,\,cm[/tex]
which rounded to two decimal places is 11.14 cm
What are the possible rational roots of the polynomial equation?
0=2x9−3x7+11x+10
Answer:
+-1, +-2,+-5, +-10
Step-by-step explanation:
you first find all the numbers that can go into the constant which is 10, so negative and positive 1 can go into 10, negative and positive 2 can go into 10 etc.
The possible rational roots of the polynomial equation
[tex]1,-1} , +\frac{1}{2} , -\frac{1}{2} , +2,-2, +5,-5, +\frac{5}{2} ,-\frac{5}{2} ,+10,-10[/tex]
Given :
The polynomial equation is
[tex]2x^{9}-3x^{7}+11x+10=0[/tex]
To find out possible rational roots, we use rational root theorem
Rational root of the form
[tex]\frac{p}{q}[/tex] where p is the constant and q is the leading coefficient
p=10 and q=2
Lets write all the factors of 10 and 2
Factors of 10 are 1,2,5,10
factor of 2 are 1,2
Rational root of the form
[tex]+- factors of \frac{p}{q} =+-\frac{1,2,5,10}{1,2}[/tex]
We consider both positive and negative factors. Ignore the repeated roots
So possible rational roots are
[tex]1,-1} , +\frac{1}{2} , -\frac{1}{2} , +2,-2, +5,-5, +\frac{5}{2} ,-\frac{5}{2} ,+10,-10[/tex]
Learn more : brainly.com/question/13211306
help please!! i don’t understand this one!
Answer:
C, D
Step-by-step explanation:
This equation can be solved any of several ways. One that doesn't require much thought is using the quadratic formula.
For ax² +bx +c = 0, the solutions are ...
[tex]x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]
In the given equation, a=2, b=11, c=5, so this becomes ...
[tex]x=\dfrac{-11\pm\sqrt{11^2-4\cdot2\cdot5}}{2\cdot2}=\dfrac{-11\pm\sqrt{81}}{4}\\\\x=\dfrac{-11\pm9}{4}=\left\{-\dfrac{20}{4},-\dfrac{2}{4}\right\}=\{-5,-\frac{1}{2}\}[/tex]
The solutions are ...
C. x = -5
D. x = -1/2
_____
My personal favorite is using a graphing calculator. The solutions are the x-intercepts of the expression on the left. That is, where its value is zero, as the equation says.
Devon pays $8.16 for 12 pounds of sugar. What is the price for 10
pounds of sugar
Answer:
$6.80
Step-by-step explanation:
$8.16 ÷ 12 = $0.68
$0.68 x 10 = $6.80
Measures of two anges 48 degrees are shown in a triangle. Write a equation showing the value of X
Answer:84
Step-by-step explanation:
Since each trinagle's interior angles which is the angles in side the triangle always add up to 180 you could add the 2 given and then subtract by 180 so 48+48 which equals 96 then 180-96 which will give you 84 as x
Answer
48+48+x=180 x=84
Step-by-step explanation:
The sum of the 3 interior angles of a triangle is always the sum of 180 degrees.
In short, this means that all three angles have to equal up to 180 degrees
48+48=96
180-96=84 x=84
To check your answer add
48+48+84 should equal 180. It does
Hope this helps
Find the inverse:
[
0 8
-1 -5
Answer:
Hi there!
Your answer is:
D: [ -5 -8
1 0 ]
Step-by-step explanation:
To find the inverse of a 2x2 matrix: swap the positions of a and d, put negatives in front of b and c, and divide everything by the determinant (ad-bc)
wwe.iw What is the square root of -1? Oi O1 O1
Answer:
i (imaginary number)
Step-by-step explanation:
[tex] \sqrt{ - 1} = i(imaginary \: number)[/tex]
Can someone help me!!plis
Answer:
I would love to but I'm not sure what the answer is. I'm so sorry
Step-by-step explanation:
Determine if the ratio or rates are equivalent: 24 points scored in 4 games; 48 points scored in 10 games ASAP ANSWER IT I NEED HELP
Answer:
Step-by-step explanation:
Yes: 24 points/4 games = 6 points per game while 48 points/10 games = 24 points in 5 games.
1. Holly, Tyler, and their parents go shopping for some items to update their 3 bedrooms. They have exactly $400 that they can spend. They have the following items in their cart: 3 packages of curtains, 3 gallons of paint, and 3 lamp shades. Complete the following to find out if they have enough money to purchase these items and, if they do, how much they will have left over.
(a) If a package of curtains cost $21.50, what is the cost of the 3 packages of curtains in the cart?
(b) If a gallon of paint costs $7.96, what is the cost of the 3 gallons of paint in the cart?
(c) If a lamp shade costs $14.99, what is the cost of the 3 lamp shades in the cart?
(d) Find the total cost of all the items in the cart. Then, find the amount of money the family has left, if any, from the $400.
Answer:
3 x 21.50= 64.50
3 x 7.96= 23.88
3 x 14.99= 44.97
Altogether equals 133.35
400-133.35= 266.65
Answer:
3 x 21.50= 64.50
3 x 7.96= 23.88
3 x 14.99= 44.97
Altogether equals 133.35
400-133.35= 266.65
100 POINTS!
STATS
EXPLANATION NEEDED
Answer:
Step-by-step explanation:
Answer:
500 dollars
Step-by-step explanation:
Which of these fractions is a repeating decimal
1/4
2/3
4/5
3/6
will give out brainliest, a THX, friend request, and i'll rate ur answer
round 93.0129 to the nearest thousandth
Answer:
93.013
Step-by-step explanation:
the ansewer is 93.013
Fill in the box below to write an expression that is equivalent to:
7 (2x + y)
8x + 2y + 9x + 5y -
Simplify (6 with an exponent of 7) and a exponent of 3
Answer:
6 to the 21st power
Step-by-step explanation:
-9,-6 after a rotation 90° counterclockwise about the origin
Answer:
90
Step-by-step explanation:
Simplify:
(7 + 2i)(9 - 6I)
Answer:
27
Step-by-step explanation:
hope this helped <3
average of 20 numbers is zero how many of them can be greater than zero?
Answer:
The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero? Average of 20 numbers = 0. Therefore Sum of 20 numbers = (0 x 20) = 0 It is quite possible that 19 of these numbers may be positive and if their sum is a, then 20th number is (-a).
Step-by-step explanation:
At the sixth-grade school dance, there are 132 boys, 89 girls, and 14 adults.
A. Write the ratio of the number of boys to the number of girls.
B. Write the same ratio using another form (A: B vs. A to B).
C. Write the ratio of the number of boys to the number of adults.
D. Write the same ratio doing another form.
Answer:
Step-by-step explanation:
A) Boys : Girls
132 : 89
66 : 89
33 : 89
B) Boys to Girls
132 to 89
66 to 89
33 to 89
C) Boys : Adults
132 : 14
66 : 7
33 : 7
D) Boys to Adults
132
-----
14
xxxxxxxx
66
-----
7
xxxxxxxx
33
------
7
I'm not sure but here you go
