On a hospital floor, 16 patients have a disease with a mortality rate of 0.1. Find the probability that two of them die. Round to three decimal places
Answer:
The probability that two of them
die is 0.257
Step-by-step explanation:
From the question, we have that the mortality rate is 0.1
So the probability that they will survive is 1-0.1 = 0.9
Now, we want to check that two will die
We are going you use the Bernoulli approximation of the Binomial theorem as follows
= nCr * p^n * q^(n-r)
where n = 16
r = 2
P = 0.1
q = 0.9
Substituting these values;
14 C 2 * 0.1^2 * 0.9^12
= 0.257
Solve the inequality
Answer: x ≥ -80
Step-by-step explanation:
-1/2x ≤ 40
1/2x ≤ -40
x ≥ -80
Shelly's age plus Mary's age is less than 36. Mary is 15 years old. Write the equation thatrepresents the problem.
sorry I answered wrongly
Answer:
Shelly's age is less than 21
Step-by-step explanation:
S+15 < 36
S < 21
What is the slope of the line that passes through the points (-8, -6)(−8,−6) and (-18, 6) ?(−18,6)? Write your answer in simplest form.
You are a business developer and charge $45 for a site visit plus additional $24 per hour for each hour you spend training employees. Write and solve an equation to determine how many total hours you have to work to earn $810 working hours at two separate businesses.
Answer: [tex]28.3\ hr[/tex]
Step-by-step explanation:
Given
Charge of the site visit [tex]\$45[/tex]
Additional charge per hour is [tex]\$24\ \text{per hour}[/tex]
He eaned [tex]\$810[/tex]
Suppose he worked for x hours
[tex]\therefore 810=45+24x\\\text{On solving}[/tex]
[tex]\Rightarrow 765=24x\\\Rightarrow x=28.3\ hr[/tex]
calculate:
(−26−5×5)−(4)×(−2)+(−3)
−(8−22)÷(−3×5)
and thankyouu alottt
Answer:
-46.9333333
Step-by-step explanation:
(−26−5×5)−(4)×(−2)+(−3)
−(8−22)÷(−3×5)
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Answer:
I believe it would be - (n+4) x 2
Step-by-step explanation:
Answer:
2(n + 4)
Step-by-step explanation:
we take her number, n, and add 4
= n + 4
Then we double that. So that can either be 2n + 2(4) = 2n + 8, or 2(n + 4) which tells you to multiply everything in the parentheses by 2.
Please let me know if you have questions.
Three sides of a quadrilateral are the same length, g, The length of the fourth side is 7 inches,
The perimeter of the quadrilateral is 10 inches,
Write an equation that represents
the situation
7
3
7
Answer:
Step-by-step explanation:
Let s represent the length of each of the three sides mentioned. The length of the fourth side is 7 inches. Adding the lengths of the four sides together yields 10 inches: g + g + g + 7 = 10 (inches)
Then 3g + 7 = 10, or 3g = 3, or g = 1.
This equation is OK, but there's no solution, since 3g or just 3 is less than 7. With side lengths 1, 1, 1, 7, we cannot draw a quadrilateral.
2. Choose the appropriate symbol to make the following statment true. 0.13_0.0872
a. >
b.<
c.=
d.none of these
Answer:
>
Step-by-step explanation:
Giving brainlist to whoever answers this question
Answer:3x +56
Step-by-step explanation:
For the following sequence determine the common difference (if it is an arithmetic
sequence) or the common ratio (if it is a geometric sequence).
36, 60, 100,...
1) Hank is looking to sell his motorcycle. He compiles these prices from the newspaper for bikes just like his
$2,000; $ 16,900; $15,100; $14,500; and $17,000. Is it more reasonable for Hank to use the mean or the
median to get a reasonable estimated price for his bike?
Answer:
The median
Step-by-step explanation:
If you look at the sample section of the 5 different prices, you can see that $2,000 is very far away from the rest of the prices, which range from $14,000 to $17,000. This $2,000 is an outlier, and is likely not accurate in predicting reasonable prices for Hank's bike, so it should not be a factor in his decision or contribute to the mean value.
surely help me with this question
Answer:
The area of the composite shape is:
122.50 [tex]cm^{2}[/tex]Step-by-step explanation:
To find the area of composite shapes you can pull apart this in known shapes, in this case, a rectangle and a triangle. Taking into account this, we can find the rectangle area firstly:
Rectangle area = base * heightThe base of the rectangle is the measure from down (14 cm) and the height is the measure in the left side (7 cm), with these values we can replace the formula:
Rectangle area = base * heightRectangle area = 14 cm * 7 cmRectangle area = 98 [tex]cm^{2}[/tex]Now, to calculate the area of the remaining triangle, we must use the next formula:
Triangle area = [tex]\frac{base*height}{2}[/tex]Where the base would be equal to the left side of the shape (7 cm) and the height is the difference between the measurement in the top side and the measurement in the bottom side:
Height of the triangle = top side - bottom sideHeight of the triangle = 21 cm - 14 cmHeight of the triangle = 7 cmWe can replace in the formula:
Triangle area = [tex]\frac{7 cm * 7cm}{2}[/tex]Triangle area =[tex]\frac{49cm^{2} }{2}[/tex]Triangle area = 24.5 [tex]cm^{2}[/tex]By last, we must add the two values of the areas obtained:
Area of the composite shape = rectangle area + triangle area.Area of the composite shape = 98 [tex]cm^{2}[/tex] + 24.5 [tex]cm^{2}[/tex]Area of the composite shape = 122.5 [tex]cm^{2}[/tex]What is 2/5% as a fraction?
Complete the question
Answer:
$625 on groceries
Step-by-step explanation:
The number is 25%, which is 1/4 of $2,500, so we need to find 1/4 of 2,500
2500/4=625
That is how you solve it using division.
Hope this helps!
La natalidad hace que la población aumenta o disminuya??
Step-by-step explanation:
la natalidad hace que la poblacion aumente
hey !! what's the answer ??
[tex] \sqrt{39 \times 13 \times 3} [/tex]
Answer:
39
Step-by-step explanation:
sqrt(39*13*13)
= sqrt(1521)
= 39
In the xy-plane, the graph of the equation y = x2 +2 intersects the x-axis in how many points?
O Zero
O One
Ο Two
O More than two
Answer:
0
Step-by-step explanation:
Here, we want to get the number of times the graph of the function intersects the x-axis
Mathematically we need to know the number of roots the function has
We can get this by the use of the discriminant
This is:
D = b^2 - 4ac
b is the coefficient of x which is 0 here
a is the coefficient of x^2 which is 1 here
c is the last number which is 2
So;
D = 0^2 -4(1)(2) = 0-8 = -8
the discriminant value is negative
This means there are no real roots
x-y plane is used for real numbers and thus since there are no real roots, the graph of the equation will not intersect any point on the x-axis
Please answer quick! God bless.
A movie theater offer two different plans to see movies. Plan One has members join for $75 and then pay only $2 per movie. The second plan offers movies for $5.75 per movie. For what number of movies will the costs be the same for both Plan One members and Plan Two members?
Answer:
I d k
Step-by-step explanation:
5.75x10=57.50
57.5+11.5=69(nice)
69+5.75= 74.75
74.75+5.75=80.5
80.5+5.75= 86.25
86.25+5.75=92
basically this formula should help
i tried to figure out on the way
describe how 20,000 and 2,000 related
Answer:
They both have 3 zero's both have the number 2
They both are numbers
what is the slope and y-intercept? write the equation. also sorry it’s so late
(y2-y1)/(x2-x1)
19-10=9
6-3=3
9/3=3
slope: 3
y-int: 1
y=3x+1
Adam loves to write. For an assignment at school, he has to write a paper about a book
they just read as a class. Before dinner, he had already written a few words, but after
dinner he began to type at a constant rate. This scenario is shown here W(m)= 25m+200
where m represents the amount of minutes he spends typing. How many words has he
written after 45 minutes?
Answer:
25(45) +200= 1125+200=1325
Y = 2x + 3 The 3 represents
a. slope
b. y-intercept
c. both
d. neither
Answer:
b. y-intercept
Step-by-step explanation:
The slope=the number/s before the x
Linear equation in slope intercept form
Answer:
y = 2x + 24
Step-by-step explanation:
Slope-intercept form equation => y = mx + b
m = slope = change in y / change in x
b = y-intercept
✔️using two pairs of values form the table, (-6, 12) and (-5, 14):
Slope (m) = (14 - 12)/(-5 -(-6))
m = 2/1
m = 2
✔️To find b, substitute (x, y) = (-6, 12) and m = 2 into y = mx + b.
12 = 2(-6) + b
12 = -12 + b
12 + 12 = b
24 = b
b = 24
✔️To write the equation, substitute m = 2 and b = 24 into y = mx + b:
y = 2x + 24
6 groups of 7 = 5 groups of 7 plus
Answer:
1 group of 7
Step-by-step explanation:
The product of two rational numbers is irrational.
Answer:
The statement is false.
Step-by-step explanation:
Here we need to remember some things:
Integer numbers are closed under multiplication.
This means that for two integers a and b, the product a*b is also an integer.
A rational number is a number that can be written as the quotient of two integer numbers.
An irrational number is a number that can't be written as the quotient of two rational numbers.
Now let's see the statement:
"The product of two rational numbers is irrational."
The product of two rational numbers is written as:
[tex]\frac{a}{b} *\frac{c}{d}[/tex]
Where a, c, b, and d are integers.
We can rewrite that product as:
[tex]\frac{a*c}{b*d}[/tex]
Because of the first property, we know that a*c is an integer, and b*d is also an integer, so here we have a quotient of two integer numbers, so this is a rational number.
Then the product of two rational numbers is a rational number.
Then the statement is false.
What is the l25I
1. -25
2. 25
3. 52
4. -52
What is the average of 62 and 127
Answer:
Step-by-step explanation:
The answer is 94.5
Answer:
94.5
Step-by-step explanation:
You would find that by adding up all the numbers in a data set the dividing them by how many number are in the data.
For example:
127 + 62 = 189
And since there are two numbers in the data set, you would divide 189 by 2 and get 94.5 as your answer.
23, 69, 207 7th term
Answer:
16767
Step-by-step explanation:
Each new term is found by multiplying the previous term by 3. Thus, 3 is the common ratio. The formula for this geometric series is therefore
a(n) = 23*3^(n - 1).
The 7th term is a(7) = 23*3^6 = 16767
In how many ways can a supermarket chain select 4 out of 12 possible sites for the construction of a new supermarket?
Answer:
6
Step-by-step explanation: